Bug 346118 - Plasmashell crash when disconnecting/reconnecting my WiFi connection after changing MTU
Summary: Plasmashell crash when disconnecting/reconnecting my WiFi connection after ch...
Status: RESOLVED FIXED
Alias: None
Product: plasma-nm
Classification: Plasma
Component: applet (show other bugs)
Version: 5.2.2
Platform: Ubuntu Linux
: NOR crash
Target Milestone: ---
Assignee: Jan Grulich
URL:
Keywords: drkonqi
: 346240 347173 347218 347869 348312 349580 350204 350618 353191 353772 354930 355128 356207 356703 356713 356892 356982 357056 357482 357512 357729 357948 357949 358072 358236 358245 358407 358613 359011 359335 359343 359419 359497 359573 359606 359663 359852 359884 360375 360412 360842 360930 361015 361238 361245 361304 361444 361544 361555 361649 361687 361749 361808 362054 362072 362159 362574 362633 362737 362753 362781 362819 363095 363101 363145 363208 363241 363469 363661 363745 363996 364032 364255 364344 364377 364442 364484 364671 365341 365583 365592 365730 365860 365902 366145 366193 366228 366270 366287 366369 366439 368667 368781 369282 369583 370539 372303 372368 372595 373196 373594 374580 374634 378141 378609 379032 379370 385511 386121 392627 (view as bug list)
Depends on:
Blocks:
 
Reported: 2015-04-12 19:44 UTC by Simon
Modified: 2018-05-28 09:59 UTC (History)
112 users (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
attachment-28836-0.html (1.41 KB, text/html)
2015-10-11 21:34 UTC, amedeo.delle.bande.nere
Details
Add debug into dodgy Qt function (1.97 KB, patch)
2016-03-03 13:54 UTC, David Edmundson
Details
debug patch against v5.51 (1.84 KB, patch)
2016-03-03 15:45 UTC, David Edmundson
Details
command line output (225.53 KB, text/plain)
2016-03-06 01:38 UTC, Alexander Potashev
Details
Patch 2 - new debug (1.27 KB, patch)
2016-03-06 21:56 UTC, David Edmundson
Details
video about connection name corruption (233.54 KB, video/ogg)
2016-03-06 23:46 UTC, Alexander Potashev
Details
.tar.bz2 archive of /home/aspotashev/.local/share/plasma/desktoptheme/111 (4.85 KB, application/x-bzip)
2016-03-11 13:48 UTC, Alexander Potashev
Details
Fix crash in libQt5Qml (891 bytes, patch)
2016-05-27 21:41 UTC, Lamarque V. Souza
Details
Fix problem without changing libQt5Qml. (2.36 KB, patch)
2016-06-07 02:00 UTC, Lamarque V. Souza
Details

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Description Simon 2015-04-12 19:44:17 UTC
Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-13-generic x86_64
Distribution: Ubuntu Vivid Vervet (development branch)

-- Information about the crash:
I realize this may be a duplicate, but I'm not sure how else to put out this information, because I can reliably reproduce this crash, which may or may not help.

- What I was doing when the application crashed:
Changed MTU value of my WiFi connection through the "Connection editor". I disconnected my WiFi connection and reconnected (also through the Connection editor). This will always crash my plasmashell with the shown backtrace.

Using Kubuntu 15.04

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4c02c6a7c0 (LWP 2779))]

Thread 45 (Thread 0x7f4bee884700 (LWP 2781)):
#0  0x00007f4bfda1f8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfff8cb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f4bfff8e64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f4bf0bcb099 in QXcbEventReader::run (this=0x1125750) at qxcbconnection.cpp:1105
#4  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x1125750) at thread/qthread_unix.cpp:337
#5  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bee884700) at pthread_create.c:333
#6  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 44 (Thread 0x7f4be7fff700 (LWP 2786)):
#0  0x00007f4bfa12ff1d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1327ef in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4be00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4be7ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x11f9250) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4be7fff700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 43 (Thread 0x7f4bde01d700 (LWP 2788)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f4be565b4fb in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007f4be565ac87 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bde01d700) at pthread_create.c:333
#4  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 42 (Thread 0x7f4bd9e4d700 (LWP 2789)):
#0  0x00007f4bfa1777a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1323f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4bd40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4bd9e4cde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x138c810) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bd9e4d700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 41 (Thread 0x7f4bd35ca700 (LWP 2793)):
#0  0x00007f4bfa132411 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4bc40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4bd35c9de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x15f2a70) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bd35ca700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 40 (Thread 0x7f4bd25c9700 (LWP 2794)):
#0  0x00007f4bfda1b49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa1762f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa13296c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4bc80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4bd25c8de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x16d20b0) at thread/qthread_unix.cpp:337
#10 0x00007f4bfd2a66aa in start_thread (arg=0x7f4bd25c9700) at pthread_create.c:333
#11 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 39 (Thread 0x7f4bd1588700 (LWP 2795)):
#0  0x00007f4bfa177789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1328cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4bbc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4bd1587de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x17c7490) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bd1588700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 38 (Thread 0x7f4bc3fff700 (LWP 2796)):
#0  0x00007f4bfda1f8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa132ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4bb80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4bc3ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x18e4a50) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bc3fff700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 37 (Thread 0x7f4bc2ffe700 (LWP 2797)):
#0  0x00007f4bfa1777a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1323f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4bb00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4bc2ffdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x19a92c0) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bc2ffe700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 36 (Thread 0x7f4bc1ffd700 (LWP 2798)):
#0  0x00007f4bfa1777a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1328b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4bb40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4bc1ffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x1ac9e50) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bc1ffd700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7f4bc0ffc700 (LWP 2799)):
#0  0x00007f4bfa1777a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1328b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ba80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4bc0ffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x1bbd720) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bc0ffc700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7f4baf7ff700 (LWP 2800)):
#0  0x00007f4bfa177789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132a16 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ba40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4baf7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x1c81270) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4baf7ff700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7f4bae7fe700 (LWP 2801)):
#0  0x00007f4bfa132767 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4bae7fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x1d72be0) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bae7fe700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7f4bad7fd700 (LWP 2802)):
#0  0x00007f4bfda1f8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa132ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ba00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4bad7fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x1e61c00) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4bad7fd700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7f4b9bfff700 (LWP 2803)):
#0  0x00007f4bfda1b49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa1762f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa13296c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b9bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x1f6cf10) at thread/qthread_unix.cpp:337
#10 0x00007f4bfd2a66aa in start_thread (arg=0x7f4b9bfff700) at pthread_create.c:333
#11 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f4b9affe700 (LWP 2804)):
#0  0x00007f4bfa12fefe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa13239b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b8c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b9affdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x20461a0) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b9affe700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f4b99ffd700 (LWP 2805)):
#0  0x00007f4bfa1777a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132eb1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b99ffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x216b6b0) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b99ffd700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f4b98ffc700 (LWP 2806)):
#0  0x00007f4bfa132672 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132e37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b98ffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x222f6d0) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b98ffc700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f4b8b7ff700 (LWP 2807)):
#0  0x00007f4bfda1f8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa132ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b8b7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x23411e0) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b8b7ff700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f4b8a7fe700 (LWP 2808)):
#0  0x00007f4bfda1f8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa132ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b8a7fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x241d660) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b8a7fe700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f4b897fd700 (LWP 2809)):
#0  0x00007f4bfa13249f in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b7c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b897fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x2525b40) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b897fd700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f4b77fff700 (LWP 2810)):
#0  0x00007f4bfa12feda in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1327ef in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b700008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b77ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x2638100) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b77fff700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f4b76ffe700 (LWP 2811)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f4c01da5644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f4c01da5689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b76ffe700) at pthread_create.c:333
#4  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f4b767fd700 (LWP 2812)):
#0  0x00007f4bfa1777a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa131e5e in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ae80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b767fcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x2707cd0) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b767fd700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f4b757fc700 (LWP 2813)):
#0  0x00007f4bfa1328b1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4aec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b757fbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4b982d9e55 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x2881e00) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b757fc700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f4b74ffb700 (LWP 2814)):
#0  0x00007f4bfda1f8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa132ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ae00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4b74ffae00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x292b3e0) at thread/qthread_unix.cpp:337
#7  0x00007f4bfd2a66aa in start_thread (arg=0x7f4b74ffb700) at pthread_create.c:333
#8  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f4ae78ce700 (LWP 2815)):
#0  0x00007f4bfe098e0f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2a0fc18: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x2a0fc18: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x2a0fc18) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x2a0fc18) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x2a0fc18) at thread/qmutex.cpp:264
#5  0x00007f4bfe3371ed in unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#6  ~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#7  canWaitLocked (this=0x2a0fbf0) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (s=0x7f4adc0012d0, timeout=0x7f4ae78cdc14) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f4bfa1323fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f4bfa132de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4adc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4ae78cdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x2a0eb40) at thread/qthread_unix.cpp:337
#17 0x00007f4bfd2a66aa in start_thread (arg=0x7f4ae78ce700) at pthread_create.c:333
#18 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f4ae6018700 (LWP 2816)):
#0  0x00007f4bfa177789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa131df0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ad40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4ae6017d90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4c0290bb56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x2b11b20) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4ae6018700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f4adb1ef700 (LWP 2823)):
#0  0x00007f4bfa12ff02 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1327ef in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ad00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4adb1eede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x28a9320) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4adb1ef700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f4acec36700 (LWP 2825)):
#0  0x00007f4bfda1b49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa1762f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa13296c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ac80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4acec35de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x356f560) at thread/qthread_unix.cpp:337
#10 0x00007f4bfd2a66aa in start_thread (arg=0x7f4acec36700) at pthread_create.c:333
#11 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f4acdb33700 (LWP 2826)):
#0  0x00007f4bfa1777a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1323f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ac00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4acdb32de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x3530ba0) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4acdb33700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f4acca30700 (LWP 2827)):
#0  0x00007f4bfda1b49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa1762f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa13296c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ac40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4acca2fde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x3b96490) at thread/qthread_unix.cpp:337
#10 0x00007f4bfd2a66aa in start_thread (arg=0x7f4acca30700) at pthread_create.c:333
#11 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f4abf7ff700 (LWP 2828)):
#0  0x00007f4bfda1f8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa132ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x3c54f50, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4abf7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x3c55370) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4abf7ff700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f4abe7fe700 (LWP 2829)):
#0  0x00007f4bfa132490 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ac4003120, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4abe7fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x3d5aae0) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4abe7fe700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f4abd71d700 (LWP 2830)):
#0  0x00007f4bfe098e0f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x3e39bd8: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x3e39bd8: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x3e39bd8) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x3e39bd8) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x3e39bd8) at thread/qmutex.cpp:264
#5  0x00007f4bfe3371ed in unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#6  ~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#7  canWaitLocked (this=0x3e39bb0) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (s=0x7f4ac0003ae0, timeout=0x7f4abd71cc14) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007f4bfa1323fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f4bfa132de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ac0003120, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4abd71cde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x3e39a00) at thread/qthread_unix.cpp:337
#17 0x00007f4bfd2a66aa in start_thread (arg=0x7f4abd71d700) at pthread_create.c:333
#18 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f4abc61c700 (LWP 2831)):
#0  0x00007f4bfa177789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132e7e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ac8002f20, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4abc61bde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x3f41680) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4abc61c700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f4abb51b700 (LWP 2832)):
#0  0x00007f4bfa132dbd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ad0008720, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4abb51ade0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x4019680) at thread/qthread_unix.cpp:337
#7  0x00007f4bfd2a66aa in start_thread (arg=0x7f4abb51b700) at pthread_create.c:333
#8  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f4aba41a700 (LWP 2833)):
#0  0x00007f4bfda1f8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f4bfa132ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ad4003f20, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4aba419de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x41230f0) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4aba41a700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f4ab9319700 (LWP 2834)):
#0  0x00007f4bfa1777a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132490 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4adc0013e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4ab9318de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x41fa940) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4ab9319700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f4ab8218700 (LWP 2835)):
#0  0x00007f4bfe09fa02 in QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:211
#1  0x00007f4bfe337591 in postEventSourcePrepare (timeout=0x0, s=0x7f4ae00381a0) at kernel/qeventdispatcher_glib.cpp:247
#2  postEventSourceCheck (source=0x7f4ae00381a0) at kernel/qeventdispatcher_glib.cpp:264
#3  0x00007f4bfa1328c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ae0051a10, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4ab8217de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x42ea200) at thread/qthread_unix.cpp:337
#11 0x00007f4bfd2a66aa in start_thread (arg=0x7f4ab8218700) at pthread_create.c:333
#12 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f4ab7115700 (LWP 2836)):
#0  0x00007f4bfa1777a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1328b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4aec009390, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4ab7114de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x43d9d60) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4ab7115700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f4ab35eb700 (LWP 2837)):
#0  0x00007f4bfa132698 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa132e37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4ae8008320, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4ab35eade0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x4b4b8e0) at thread/qthread_unix.cpp:337
#8  0x00007f4bfd2a66aa in start_thread (arg=0x7f4ab35eb700) at pthread_create.c:333
#9  0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f4ab24e8700 (LWP 2838)):
#0  0x00007f4bfa1777a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa1326f9 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132e37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b70002f20, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4ab24e7de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x4c0cd20) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4ab24e8700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f4aaf226700 (LWP 3008)):
#0  0x00007f4bfa177789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4bfa131f38 in g_main_context_release () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4bfa132e76 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4bfe337c6c in QEventDispatcherGlib::processEvents (this=0x7f4b7c132160, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7f4aaf225de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f4bfe09bb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f4bffe29f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f4bfe0a0b0e in QThreadPrivate::start (arg=0x62282d0) at thread/qthread_unix.cpp:337
#9  0x00007f4bfd2a66aa in start_thread (arg=0x7f4aaf226700) at pthread_create.c:333
#10 0x00007f4bfda2aeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f4c02c6a7c0 (LWP 2779)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007f4bfe310077 in QMetaObject::activate (sender=0x5da6780, signal_index=6, argv=0x0) at kernel/qobject.cpp:3762
#8  0x00007f4bffc02d12 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f4bffe70128 in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f4bffe75c41 in QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f4bffe97cdf in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f4bffe983ef in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f4bfe30fae2 in QMetaObject::activate (sender=sender@entry=0x2c78600, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffc5b85e7a0) at kernel/qobject.cpp:3731
#14 0x00007f4bfe310057 in QMetaObject::activate (sender=sender@entry=0x2c78600, m=m@entry=0x7f4bfe538a40 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffc5b85e7a0) at kernel/qobject.cpp:3582
#15 0x00007f4bfe38d226 in QAbstractItemModel::layoutChanged (this=this@entry=0x2c78600, _t1=..., _t2=_t2@entry=QAbstractItemModel::VerticalSortHint) at .moc/moc_qabstractitemmodel.cpp:407
#16 0x00007f4bfe2af7e5 in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=<optimized out>, source_top_left=..., source_bottom_right=...) at itemmodels/qsortfilterproxymodel.cpp:1205
#17 0x00007f4bfe30f9c9 in QMetaObject::activate (sender=0x55c7aa0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc5b85ea80) at kernel/qobject.cpp:3716
#18 0x00007f4bfe310057 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f4bfe538a40 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffc5b85ea80) at kernel/qobject.cpp:3582
#19 0x00007f4bfe38d13c in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=..., _t3=...) at .moc/moc_qabstractitemmodel.cpp:393
#20 0x00007f4adba9f13d in NetworkModel::updateItem(NetworkModelItem*) () from /usr/lib/x86_64-linux-gnu/libplasmanm_internal.so
#21 0x00007f4adbaa0bca in NetworkModel::activeConnectionStateChanged(NetworkManager::ActiveConnection::State) () from /usr/lib/x86_64-linux-gnu/libplasmanm_internal.so
#22 0x00007f4bfe30f9c9 in QMetaObject::activate (sender=0x61a76e0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffc5b85ed00) at kernel/qobject.cpp:3716
#23 0x00007f4adb832841 in NetworkManager::ActiveConnection::stateChanged(NetworkManager::ActiveConnection::State) () from /usr/lib/x86_64-linux-gnu/libKF5NetworkManagerQt.so.6
#24 0x00007f4adb7a5261 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5NetworkManagerQt.so.6
#25 0x00007f4bfe30f35a in call (a=0x7ffc5b85ef90, r=0x5db0df0, this=0x61c1270) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#26 QMetaObject::activate (sender=0x5db0e28, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x7ffc5b85ef90) at kernel/qobject.cpp:3702
#27 0x00007f4adb839708 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5NetworkManagerQt.so.6
#28 0x00007f4adb840c9f in ?? () from /usr/lib/x86_64-linux-gnu/libKF5NetworkManagerQt.so.6
#29 0x00007f4c02d995c7 in QDBusConnectionPrivate::deliverCall (this=0x5da6780, object=0x6, msg=..., metaTypes=..., slotIdx=1) at qdbusintegrator.cpp:993
#30 0x00007f4bfe31073a in QObject::event (this=0x5db0e28, e=<optimized out>) at kernel/qobject.cpp:1245
#31 0x00007f4bfebe8b2c in QApplicationPrivate::notify_helper (this=0x110a4f0, receiver=0x5db0e28, e=0x64b3570) at kernel/qapplication.cpp:3720
#32 0x00007f4bfebee000 in QApplication::notify (this=0x7ffc5b85f860, receiver=0x5db0e28, e=0x64b3570) at kernel/qapplication.cpp:3503
#33 0x00007f4bfe2dec2b in QCoreApplication::notifyInternal (this=0x7ffc5b85f860, receiver=0x5db0e28, event=event@entry=0x64b3570) at kernel/qcoreapplication.cpp:935
#34 0x00007f4bfe2e0c9b in sendEvent (event=0x64b3570, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#35 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x10fff00) at kernel/qcoreapplication.cpp:1552
#36 0x00007f4bfe2e1298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#37 0x00007f4bfe337843 in postEventSourceDispatch (s=0x114e280) at kernel/qeventdispatcher_glib.cpp:271
#38 0x00007f4bfa132c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007f4bfa132f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007f4bfa132fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007f4bfe337c57 in QEventDispatcherGlib::processEvents (this=0x1148410, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#42 0x00007f4bfe2dc3e2 in QEventLoop::exec (this=this@entry=0x7ffc5b85f6e0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#43 0x00007f4bfe2e402c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#44 0x00007f4bfe62331c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#45 0x00007f4bfebe47a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#46 0x000000000042fd9b in main (argc=4, argv=<optimized out>) at ../../shell/main.cpp:158

Possible duplicates by query: bug 345289, bug 345063, bug 344695, bug 342975, bug 342763.

Reported using DrKonqi
Comment 1 Eike Hein 2015-04-12 22:50:31 UTC
How is this a Task Manager crash, David?
Comment 2 David Edmundson 2015-04-12 23:03:17 UTC
NetworkManager,  TaskManager. Close enough.

Actually interestingly it's very very similar to that open task manager bug, 342763. model does a datachange then we have a Qt crashes.
Comment 3 Jan Grulich 2015-04-13 08:27:40 UTC
Hmm, I'm not able to reproduce it, but I guess it will crash even when you change something else. Looks like a Qt issues rather than a bug in plasma-nm.
Comment 4 Simon 2015-04-13 08:42:00 UTC
One thing I forgot to mention and that might be relevant is that I have installed a new USB WiFi adapter (replacing my old USB WiFi adapter). I've had some issues with the plasma-nm widget after installing the new adapter, I made a bug report about it: 345876

I think somehow my old WiFi adapter might still be "there" somewhere, causing these kind of troubles. For example I get now two checkboxes (I still need to install a proper icon set) in the plasma-nm widget, and clicking on them will cause trouble. I suppose those checkboxes are there to activate/deactivate my adapters, but since I only have 1 WiFi adapter plugged in I wonder why there are two checkboxes at all.

Not sure if this is really relevant to the crash at hand.
Comment 5 Jan Grulich 2015-04-13 09:03:58 UTC
I don't think this has something to do with your USB WiFi adapter. Reason why you have there two checkboxes is that one is for flight mode and the second one is to turn off/on wireless.
Comment 6 Simon 2015-04-13 10:10:31 UTC
Ok, understood! (I really should install proper icons, I wasn't even aware that there is a flight mode)
Comment 7 Jan Grulich 2015-04-16 06:56:06 UTC
*** Bug 346240 has been marked as a duplicate of this bug. ***
Comment 8 Jan Grulich 2015-05-05 10:52:35 UTC
*** Bug 347218 has been marked as a duplicate of this bug. ***
Comment 9 Jan Grulich 2015-05-05 12:37:23 UTC
*** Bug 347173 has been marked as a duplicate of this bug. ***
Comment 10 David Edmundson 2015-05-19 23:37:32 UTC
*** Bug 347869 has been marked as a duplicate of this bug. ***
Comment 11 David Edmundson 2015-05-28 08:27:07 UTC
*** Bug 348312 has been marked as a duplicate of this bug. ***
Comment 12 Bhushan Shah 2015-06-25 07:21:42 UTC
*** Bug 349580 has been marked as a duplicate of this bug. ***
Comment 13 Lamarque V. Souza 2015-07-06 16:53:54 UTC
Probably this is due to this bug  in Qt https://bugreports.qt.io/browse/QTBUG-43827

Upgrading to Qt >= 5.4.2 solves the problem.
Comment 14 David Edmundson 2015-07-14 10:47:18 UTC
*** Bug 350204 has been marked as a duplicate of this bug. ***
Comment 15 David Edmundson 2015-07-25 21:01:18 UTC
*** Bug 350618 has been marked as a duplicate of this bug. ***
Comment 16 Jan Grulich 2015-07-28 14:45:26 UTC
Fixed in Qt 5.4.2.
Comment 17 Jan Grulich 2015-07-28 14:46:22 UTC
(In reply to Jan Grulich from comment #16)
> Fixed in Qt 5.4.2.

Sorry, not fixed yet, but it's still an issue in Qt.
Comment 18 David Edmundson 2015-09-20 18:25:51 UTC
*** Bug 352946 has been marked as a duplicate of this bug. ***
Comment 19 David Edmundson 2015-09-26 00:02:38 UTC
*** Bug 353191 has been marked as a duplicate of this bug. ***
Comment 20 Michael 2015-10-08 03:01:32 UTC
Previous reports are missing a few bits of the call stack.  Kubuntu 15.10 with Qt 5.4.2


Thread 1 (Thread 0x7f7b557d4800 (LWP 1872)):
[KCrash Handler]
#6  QMetaObject::methodOffset (this=this@entry=0x0) at kernel/qmetaobject.cpp:381
#7  0x00007f7b508b4fbb in QMetaObject::activate (sender=sender@entry=0xdd6fcc0, signal_index=6, argv=argv@entry=0x0) at kernel/qobject.cpp:3764
#8  0x00007f7b52c86e72 in VDMModelDelegateDataType::notify (this=<optimized out>, items=..., index=0, count=23, roles=...) at util/qqmladaptormodel.cpp:171
#9  0x00007f7b52ee5c2a in QQmlAdaptorModel::notify (roles=..., count=23, index=<optimized out>, items=..., this=0x8454c38) at ../../include/QtQml/5.4.2/QtQml/private/../../../../../src/qml/util/qqmladaptormodel_p.h:118
#10 QQmlDelegateModel::_q_itemsChanged (this=this@entry=0x8436fd0, index=index@entry=0, count=23, roles=...) at types/qqmldelegatemodel.cpp:1121
#11 0x00007f7b52eea5f2 in QQmlDelegateModel::_q_layoutChanged (this=0x8436fd0, parents=..., hint=<optimized out>) at types/qqmldelegatemodel.cpp:1585
#12 0x00007f7b52f0c25f in QQmlDelegateModel::qt_static_metacall (_o=_o@entry=0x8436fd0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=14, _a=_a@entry=0x7ffe962dc580) at .moc/moc_qqmldelegatemodel_p.cpp:204
#13 0x00007f7b52f0c605 in QQmlDelegateModel::qt_metacall (this=0x8436fd0, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x7ffe962dc580) at .moc/moc_qqmldelegatemodel_p.cpp:293
#14 0x00007f7b508b4940 in QMetaObject::activate (sender=sender@entry=0x74c26f0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffe962dc580) at kernel/qobject.cpp:3732
#15 0x00007f7b508b4f87 in QMetaObject::activate (sender=sender@entry=0x74c26f0, m=m@entry=0x7f7b50ab6e40 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffe962dc580) at kernel/qobject.cpp:3582
#16 0x00007f7b5092b736 in QAbstractItemModel::layoutChanged (this=this@entry=0x74c26f0, _t1=..., _t2=_t2@entry=QAbstractItemModel::VerticalSortHint) at .moc/moc_qabstractitemmodel.cpp:407
#17 0x00007f7b5085389b in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=0x82034b0, source_top_left=..., source_bottom_right=...) at itemmodels/qsortfilterproxymodel.cpp:1205
#18 0x00007f7b508b478a in QMetaObject::activate (sender=sender@entry=0x6b7f120, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe962dc850) at kernel/qobject.cpp:3717
#19 0x00007f7b508b4f87 in QMetaObject::activate (sender=sender@entry=0x6b7f120, m=m@entry=0x7f7b50ab6e40 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffe962dc850) at kernel/qobject.cpp:3582
#20 0x00007f7b5092b64c in QAbstractItemModel::dataChanged (this=this@entry=0x6b7f120, _t1=..., _t2=..., _t3=...) at .moc/moc_qabstractitemmodel.cpp:393
#21 0x00007f7a69687cdd in NetworkModel::updateItem (this=this@entry=0x6b7f120, item=item@entry=0xd319d20) at ../../libs/models/networkmodel.cpp:566
#22 0x00007f7a69689095 in NetworkModel::activeConnectionStateChanged (this=0x6b7f120, state=NetworkManager::ActiveConnection::Activated) at ../../libs/models/networkmodel.cpp:610
#23 0x00007f7b508b4617 in QtPrivate::QSlotObjectBase::call (a=0x7ffe962dcad0, r=0x6b7f120, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#24 QMetaObject::activate (sender=sender@entry=0xdfd5de0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=11, argv=argv@entry=0x7ffe962dcad0) at kernel/qobject.cpp:3702
#25 0x00007f7b508b4f87 in QMetaObject::activate (sender=sender@entry=0xdfd5de0, m=m@entry=0x7f7a6966f4e0 <NetworkManager::ActiveConnection::staticMetaObject>, local_signal_index=local_signal_index@entry=11, argv=argv@entry=0x7ffe962dcad0) at kernel/qobject.cpp:3582
#26 0x00007f7a69421bb1 in NetworkManager::ActiveConnection::stateChanged (this=this@entry=0xdfd5de0, _t1=NetworkManager::ActiveConnection::Activated) at moc_activeconnection.cpp:360
#27 0x00007f7a69392481 in NetworkManager::ActiveConnectionPrivate::propertiesChanged (this=0xda67760, properties=...) at ../../src/activeconnection.cpp:321
#28 0x00007f7b508b4617 in QtPrivate::QSlotObjectBase::call (a=0x7ffe962dcd80, r=0xda67760, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#29 QMetaObject::activate (sender=0xda67798, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=argv@entry=0x7ffe962dcd80) at kernel/qobject.cpp:3702
#30 0x00007f7b508b4f87 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f7a6966f2a0 <OrgFreedesktopNetworkManagerConnectionActiveInterface::staticMetaObject>, local_signal_index=<optimized out>, argv=argv@entry=0x7ffe962dcd80) at kernel/qobject.cpp:3582
#31 0x00007f7a69429013 in OrgFreedesktopNetworkManagerConnectionActiveInterface::PropertiesChanged (_t1=..., this=<optimized out>) at moc_nm-active-connectioninterface.cpp:222
#32 OrgFreedesktopNetworkManagerConnectionActiveInterface::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at moc_nm-active-connectioninterface.cpp:110
#33 0x00007f7a6943107f in OrgFreedesktopNetworkManagerConnectionActiveInterface::qt_metacall (this=0xda67798, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7ffe962dcf30) at moc_nm-active-connectioninterface.cpp:166
#34 0x00007f7b55913d4e in QDBusConnectionPrivate::deliverCall (this=0x7f7b1c3ae340, object=0xda67798, msg=..., metaTypes=..., slotIdx=6) at qdbusintegrator.cpp:992
#35 0x00007f7b508b5651 in QObject::event (this=0xda67798, e=<optimized out>) at kernel/qobject.cpp:1245
#36 0x00007f7b51361b8c in QApplicationPrivate::notify_helper (this=this@entry=0x1d83cb0, receiver=receiver@entry=0xda67798, e=e@entry=0x8022630) at kernel/qapplication.cpp:3720
#37 0x00007f7b51367230 in QApplication::notify (this=0x7ffe962dd660, receiver=0xda67798, e=0x8022630) at kernel/qapplication.cpp:3503
#38 0x00007f7b50883f1b in QCoreApplication::notifyInternal (this=0x7ffe962dd660, receiver=0xda67798, event=event@entry=0x8022630) at kernel/qcoreapplication.cpp:935
#39 0x00007f7b50886057 in QCoreApplication::sendEvent (event=0x8022630, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#40 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1d791f0) at kernel/qcoreapplication.cpp:1552
#41 0x00007f7b50886588 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#42 0x00007f7b508dae73 in postEventSourceDispatch (s=0x1de6990) at kernel/qeventdispatcher_glib.cpp:271
#43 0x00007f7b4cd5dff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f7b4cd5e250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f7b4cd5e2fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f7b508db27f in QEventDispatcherGlib::processEvents (this=0x1ddcfd0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#47 0x00007f7b5088175a in QEventLoop::exec (this=this@entry=0x7ffe962dd4e0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#48 0x00007f7b508892cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#49 0x00007f7b50b9e09c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#50 0x00007f7b5135e025 in QApplication::exec () at kernel/qapplication.cpp:2956
#51 0x00000000004322c3 in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:176
Comment 21 David Edmundson 2015-10-11 19:41:09 UTC
*** Bug 353772 has been marked as a duplicate of this bug. ***
Comment 22 amedeo.delle.bande.nere 2015-10-11 21:34:23 UTC
Created attachment 94957 [details]
attachment-28836-0.html

Please would you remove my address from this mailing list? Thanks

Amedeo

On Sun, Oct 11, 2015 at 9:41 PM, David Edmundson <kde@davidedmundson.co.uk>
wrote:

> https://bugs.kde.org/show_bug.cgi?id=346118
>
> David Edmundson <kde@davidedmundson.co.uk> changed:
>
>            What    |Removed                     |Added
>
> ----------------------------------------------------------------------------
>                  CC|                            |matt.luker001@gmail.com
>
> --- Comment #21 from David Edmundson <kde@davidedmundson.co.uk> ---
> *** Bug 353772 has been marked as a duplicate of this bug. ***
>
> --
> You are receiving this mail because:
> You are on the CC list for the bug.
>
Comment 23 David Edmundson 2015-11-09 22:46:29 UTC
*** Bug 354930 has been marked as a duplicate of this bug. ***
Comment 24 David Edmundson 2015-11-10 11:57:16 UTC
*** Bug 355128 has been marked as a duplicate of this bug. ***
Comment 25 David Edmundson 2015-12-02 18:53:31 UTC
*** Bug 356207 has been marked as a duplicate of this bug. ***
Comment 26 David Edmundson 2015-12-20 20:59:28 UTC
*** Bug 356892 has been marked as a duplicate of this bug. ***
Comment 27 David Edmundson 2015-12-20 20:59:39 UTC
*** Bug 356713 has been marked as a duplicate of this bug. ***
Comment 28 David Edmundson 2015-12-21 07:03:01 UTC
*** Bug 356982 has been marked as a duplicate of this bug. ***
Comment 29 David Edmundson 2015-12-22 18:09:37 UTC
*** Bug 357056 has been marked as a duplicate of this bug. ***
Comment 30 David Edmundson 2016-01-03 18:52:20 UTC
*** Bug 357482 has been marked as a duplicate of this bug. ***
Comment 31 David Edmundson 2016-01-04 13:10:28 UTC
*** Bug 357512 has been marked as a duplicate of this bug. ***
Comment 32 David Edmundson 2016-01-10 21:11:33 UTC
*** Bug 357729 has been marked as a duplicate of this bug. ***
Comment 33 David Edmundson 2016-01-14 00:19:42 UTC
*** Bug 357949 has been marked as a duplicate of this bug. ***
Comment 34 David Edmundson 2016-01-14 00:19:48 UTC
*** Bug 357948 has been marked as a duplicate of this bug. ***
Comment 35 David Edmundson 2016-01-17 07:29:27 UTC
*** Bug 358072 has been marked as a duplicate of this bug. ***
Comment 36 David Edmundson 2016-01-20 08:57:33 UTC
*** Bug 358236 has been marked as a duplicate of this bug. ***
Comment 37 David Edmundson 2016-01-23 18:37:18 UTC
*** Bug 358407 has been marked as a duplicate of this bug. ***
Comment 38 David Edmundson 2016-01-27 01:43:29 UTC
*** Bug 358613 has been marked as a duplicate of this bug. ***
Comment 39 Detlev Casanova 2016-02-02 13:29:51 UTC
Just got this crash with Qt 5.5.1. I have a quite poor trace:

Thread 1 (Thread 0x7fab8b04b800 (LWP 916)):
[KCrash Handler]
#6  0x00007fab98e3c070 in QMetaObject::methodOffset() const () from /usr/lib64/libQt5Core.so.5
#7  0x00007fab98e5c6fb in QMetaObject::activate(QObject*, int, void**) () from /usr/lib64/libQt5Core.so.5
#8  0x00007fab9b242052 in ?? () from /usr/lib64/libQt5Qml.so.5
#9  0x00007fab9b4c4388 in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () from /usr/lib64/libQt5Qml.so.5
#10 0x00007fab9b4ca192 in QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib64/libQt5Qml.so.5
#11 0x00007fab9b4ec8f7 in ?? () from /usr/lib64/libQt5Qml.so.5
#12 0x00007fab9b4ed77b in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Qml.so.5
#13 0x00007fab98e5c0d5 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#14 0x00007fab98ece456 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib64/libQt5Core.so.5
#15 0x00007fab98e0db35 in QSortFilterProxyModelPrivate::_q_sourceDataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () from /usr/lib64/libQt5Core.so.5
#16 0x00007fab98e0e6d8 in QSortFilterProxyModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Core.so.5
#17 0x00007fab98e5bfd4 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#18 0x00007fab98ece36c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () from /usr/lib64/libQt5Core.so.5
#19 0x00007faada92113d in NetworkModel::updateItem(NetworkModelItem*) () from /usr/lib64/libplasmanm_internal.so
#20 0x00007faada925e9a in NetworkModel::addActiveConnection(QSharedPointer<NetworkManager::ActiveConnection> const&) () from /usr/lib64/libplasmanm_internal.so
#21 0x00007faada926523 in NetworkModel::activeConnectionAdded(QString const&) () from /usr/lib64/libplasmanm_internal.so
#22 0x00007fab98e5ba53 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#23 0x00007faada6b21c5 in NetworkManager::Notifier::activeConnectionAdded(QString const&) () from /usr/lib64/libKF5NetworkManagerQt.so.6
#24 0x00007faada63832b in NetworkManager::NetworkManagerPrivate::propertiesChanged(QMap<QString, QVariant> const&) () from /usr/lib64/libKF5NetworkManagerQt.so.6
#25 0x00007fab98e5ba53 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#26 0x00007faada6be028 in OrgFreedesktopNetworkManagerInterface::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib64/libKF5NetworkManagerQt.so.6
#27 0x00007faada6c3803 in OrgFreedesktopNetworkManagerInterface::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libKF5NetworkManagerQt.so.6
#28 0x00007fab9df5cf8c in ?? () from /usr/lib64/libQt5DBus.so.5
#29 0x00007fab98e5d08a in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5
#30 0x00007fab9989669c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#31 0x00007fab9989bb10 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#32 0x00007fab98e33d8d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#33 0x00007fab98e36b63 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#34 0x00007fab98e81713 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/libQt5Core.so.5
#35 0x00007fab946c77d4 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#36 0x00007fab946c7a28 in ?? () from /usr/lib64/libglib-2.0.so.0
#37 0x00007fab946c7acc in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#38 0x00007fab98e81787 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#39 0x00007fab98e329aa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#40 0x00007fab98e39d8c in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#41 0x0000000000432bbd in main ()



Should I reopen it in Qt bug tracker ?
Comment 40 David Edmundson 2016-02-02 13:31:55 UTC
>Should I reopen it in Qt bug tracker ?
Yes please
Comment 41 David Edmundson 2016-02-05 19:14:35 UTC
*** Bug 359011 has been marked as a duplicate of this bug. ***
Comment 42 Jan Grulich 2016-02-13 11:02:45 UTC
*** Bug 359335 has been marked as a duplicate of this bug. ***
Comment 43 David Edmundson 2016-02-15 16:45:12 UTC
*** Bug 359419 has been marked as a duplicate of this bug. ***
Comment 44 David Edmundson 2016-02-15 16:58:51 UTC
*** Bug 359343 has been marked as a duplicate of this bug. ***
Comment 45 David Edmundson 2016-02-19 12:18:11 UTC
*** Bug 359573 has been marked as a duplicate of this bug. ***
Comment 46 David Edmundson 2016-02-20 17:53:44 UTC
*** Bug 359606 has been marked as a duplicate of this bug. ***
Comment 47 David Edmundson 2016-02-20 18:40:55 UTC
*** Bug 359497 has been marked as a duplicate of this bug. ***
Comment 48 David Edmundson 2016-02-22 09:08:15 UTC
*** Bug 359663 has been marked as a duplicate of this bug. ***
Comment 49 Wattos 2016-02-22 09:12:39 UTC
This bug is marked at resolved upstream. What version of KDE or QT do I need to not run into this issue?

This is a very annoying bug as I run into this daily because I need to connect to VPN networks. Plasma crashes each time I connect to my VPN connection. I am on:

KDE Frameworks 5.18.0
Qt 5.5.1 (built against 5.5.1)
Comment 50 David Edmundson 2016-02-22 09:58:16 UTC
I don't know. It's marked as upstream because the code is crashing in Qt code, not ours.

I met someone who had this crash with their VPN, I set mine up to be the exact same VPN on the same network and for me with latest Qt5.6 didn't crash.  

I've not seen a report of this with Qt 5.6 yet..but that doesn't necesarily prove anything.
Comment 51 David Edmundson 2016-02-28 22:03:57 UTC
*** Bug 359852 has been marked as a duplicate of this bug. ***
Comment 52 David Edmundson 2016-02-28 22:06:06 UTC
*** Bug 359884 has been marked as a duplicate of this bug. ***
Comment 53 David Edmundson 2016-02-29 07:52:46 UTC
Someone managed to reproduce this under valgrind. It was /almost/ perfect.

==11595== Use of uninitialised value of size 8
==11595==    at 0x771F078: ??? (in /usr/lib/libQt5Qml.so.5.5.1)
==11595==    by 0x7995899: QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) (in /usr/lib/libQt5Qml.so.5.5.1)
==11595==    by 0x799A4B1: QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) (in /usr/lib/libQt5Qml.so.5.5.1)
==11595==    by 0x79BCF3E: ??? (in /usr/lib/libQt5Qml.so.5.5.1)
==11595==    by 0x79BD6F7: QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) (in /usr/lib/libQt5Qml.so.5.5.1)
==11595==    by 0x9F644CF: QMetaObject::activate(QObject*, int, int, void**) (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0x9FE0F05: QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0x9F0552B: ??? (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0x9F07007: ??? (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0x9F64319: QMetaObject::activate(QObject*, int, int, void**) (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0x9FE0E1B: QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0xBF70A11C: NetworkModel::updateItem(NetworkModelItem*) (in /usr/lib/libplasmanm_internal.so)
==11595== 
==11595== Invalid read of size 4
==11595==    at 0x771F078: ??? (in /usr/lib/libQt5Qml.so.5.5.1)
==11595==    by 0x7995899: QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) (in /usr/lib/libQt5Qml.so.5.5.1)
==11595==    by 0x799A4B1: QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) (in /usr/lib/libQt5Qml.so.5.5.1)
==11595==    by 0x79BCF3E: ??? (in /usr/lib/libQt5Qml.so.5.5.1)
==11595==    by 0x79BD6F7: QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) (in /usr/lib/libQt5Qml.so.5.5.1)
==11595==    by 0x9F644CF: QMetaObject::activate(QObject*, int, int, void**) (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0x9FE0F05: QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0x9F0552B: ??? (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0x9F07007: ??? (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0x9F64319: QMetaObject::activate(QObject*, int, int, void**) (in /usr/lib/libQt5Core.so.5.5.1)
==11595==    by 0x9FE0E1B: QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) (in /usr/lib/libQt5Core.so.5.5.1)

 If I can find out where exactly in 
==11595==    at 0x771F078: ??? (in /usr/lib/libQt5Qml.so.5.5.1) we'd be sorted in no time.

Can someone who can reproduce this please get a Qt with a full debug symbols and run under valgrind.

There are only 3 possibilities:
QQmlListCompositor::listItemsChanged

QQmlAdaptorModel::notify

QQmlDelegateModelPrivate::itemsChanged    

but they're all too big to follow without narrowing it down some more.
Comment 54 Atanas Bombov 2016-02-29 23:05:59 UTC
For me the crash seems to be fixed in the latest Qt build in OpenSUSE Tumbleweed, 5.5.1 (libQt5Core5-5.5.1-3.1.x86_64)
Comment 55 Alexander Potashev 2016-03-03 08:35:14 UTC
(In reply to David Edmundson from comment #53)
>  If I can find out where exactly in 
> ==11595==    at 0x771F078: ??? (in /usr/lib/libQt5Qml.so.5.5.1) we'd be
> sorted in no time.

David,

Can you please request libQt5Qml.so.5.5.1 from that person so that we could disassemble and see which line in the source code causes problem?
Comment 56 Alexander Potashev 2016-03-03 08:36:26 UTC
Btw, I have this crash with Plasma 5.5.4, KF 5.19.0 and Qt 5.5.1 on Gentoo.
Comment 57 Alexander Potashev 2016-03-03 11:12:23 UTC
Judging from the comments, nobody looked at the command line output. Here it is:

[...]
networkmanager-qt: void NetworkManager::ActiveConnectionPrivate::propertiesChanged(const QVariantMap&) Unhandled property "VpnState"
networkmanager-qt: void NetworkManager::VpnConnectionPrivate::propertiesChanged(const QVariantMap&) Unhandled property "State"
networkmanager-qt: void NetworkManager::ActiveConnectionPrivate::propertiesChanged(const QVariantMap&) Unhandled property "VpnState"
networkmanager-qt: virtual void NetworkManager::DevicePrivate::propertyChanged(const QString&, const QVariant&) Unhandled property "Metered"
networkmanager-qt: virtual void NetworkManager::DevicePrivate::propertyChanged(const QString&, const QVariant&) Unhandled property "Metered"
ASSERT failure in QList<T>::at: "index out of range", file /usr/include/qt5/QtCore/qlist.h, line 510
Application::crashHandler() called with signal 6; recent crashes: 1
[...]

======


Top of stack trace:

Thread 1 (Thread 0x7ffc5be2a7c0 (LWP 25461)):
[KCrash Handler]
#6  0x00007ffc68a110d7 in raise () from /lib64/libc.so.6
#7  0x00007ffc68a1243a in abort () from /lib64/libc.so.6
#8  0x00007ffc6918a9fe in QMessageLogger::fatal(char const*, ...) const () from /usr/lib64/libQt5Core.so.5
#9  0x00007ffc69185d27 in qt_assert_x(char const*, char const*, char const*, int) () from /usr/lib64/libQt5Core.so.5
#10 0x00007ffc6b7b76bc in VDMModelDelegateDataType::notify(QQmlAdaptorModel const&, QList<QQmlDelegateModelItem*> const&, int, int, QVector<int> const&) const () from /usr/lib64/libQt5Qml.so.5
#11 0x00007ffc6ba50f09 in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () from /usr/lib64/libQt5Qml.so.5
#12 0x00007ffc6ba56710 in QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib64/libQt5Qml.so.5
#13 0x00007ffc6ba7ad9f in QQmlDelegateModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Qml.so.5
#14 0x00007ffc6ba7b43b in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Qml.so.5
#15 0x00007ffc6937676b in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#16 0x00007ffc693ebfe6 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib64/libQt5Core.so.5
#17 0x00007ffc69322444 in QSortFilterProxyModelPrivate::_q_sourceDataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () from /usr/lib64/libQt5Core.so.5
#18 0x00007ffc69322a38 in QSortFilterProxyModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Core.so.5
#19 0x00007ffc6937664e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#20 0x00007ffc693ebf3c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () from /usr/lib64/libQt5Core.so.5
#21 0x00007ffba5ae196f in NetworkModel::updateItem(NetworkModelItem*) () from /usr/lib64/libplasmanm_internal.so
#22 0x00007ffba5ae2ba9 in NetworkModel::activeConnectionStateChanged(NetworkManager::ActiveConnection::State) () from /usr/lib64/libplasmanm_internal.so
[...]
Comment 58 David Edmundson 2016-03-03 13:54:42 UTC
Created attachment 97653 [details]
Add debug into dodgy Qt function

Attached is a patch for Qt that prints out a lot of information at the place with the problem.

Can someone who can reproduce the problem please apply this and include the output of this.

Patch is against 5.6.0 branch, but it should apply cleanly on 5.5 too
Comment 59 Fabio Coatti 2016-03-03 14:16:44 UTC
I tried to apply the patch under gentoo, but I the patch is rejected; maybe I'm applying it to a wrong file?


PATCH COMMAND:  patch -p1 -g0 -E --no-backup-if-mismatch  --dry-run -f < '/etc/portage/patches//dev-qt/qtdeclarative-5.5.1-r1/nm_crash_debug.patch'

================================
checking file src/qml/util/qqmladaptormodel.cpp
Hunk #1 FAILED at 148.
Hunk #2 succeeded at 171 (offset -2 lines).
1 out of 2 hunks FAILED

patch program exited with status 1
================================
Comment 60 David Edmundson 2016-03-03 15:45:29 UTC
Created attachment 97655 [details]
debug patch against v5.51

Ah, it doesn't apply against 5.5.1, I've made one that does
Comment 61 David Edmundson 2016-03-04 22:26:46 UTC
Fabio, did that apply?
Comment 62 Alexander Potashev 2016-03-06 01:38:50 UTC
Created attachment 97704 [details]
command line output

David, I applied your patch to qtdeclarative-5.5.1 and reproduced the crash. Please see the command line output in the attachment.

Below is the stacktrace, but I think it's did not change:

Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f7d9655f7c0 (LWP 6881))]

Thread 7 (Thread 0x7f7d94dcd700 (LWP 6882)):
#0  0x00007f7da31f1aed in poll () from /lib64/libc.so.6
#1  0x00007f7da72e1a92 in _xcb_conn_wait () from /usr/lib64/libxcb.so.1
#2  0x00007f7da72e367f in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f7d962d3159 in QXcbEventReader::run() () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f7da38d2246 in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f7da29fc314 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f7da31fa6dd in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f7d8dbcb700 (LWP 6915)):
#0  0x00007f7d9f2f9879 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f7d9f2b6bf0 in g_main_context_acquire () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f7d9f2b7a35 in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7d9f2b7c8c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f7da3ad364b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f7da3a7eabb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f7da38ccdfc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007f7da6147138 in QQmlThreadPrivate::run() () from /usr/lib64/libQt5Qml.so.5
#8  0x00007f7da38d2246 in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#9  0x00007f7da29fc314 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f7da31fa6dd in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f7d840bf700 (LWP 6933)):
#0  0x00007f7da31f1aed in poll () from /lib64/libc.so.6
#1  0x00007f7d9f2b7b74 in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f7d9f2b7c8c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7da3ad364b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f7da3a7eabb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f7da38ccdfc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f7da6147138 in QQmlThreadPrivate::run() () from /usr/lib64/libQt5Qml.so.5
#7  0x00007f7da38d2246 in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#8  0x00007f7da29fc314 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f7da31fa6dd in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f7d82603700 (LWP 6940)):
#0  0x00007f7d9f2f9894 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f7d9f2b71b0 in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f7d9f2b7a90 in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7d9f2b7c8c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f7da3ad364b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f7da3a7eabb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f7da38ccdfc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007f7da6147138 in QQmlThreadPrivate::run() () from /usr/lib64/libQt5Qml.so.5
#8  0x00007f7da38d2246 in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#9  0x00007f7da29fc314 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f7da31fa6dd in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f7d7a85b700 (LWP 6983)):
#0  0x00007f7da32069bf in __libc_enable_asynccancel () from /lib64/libc.so.6
#1  0x00007f7da31f1ae2 in poll () from /lib64/libc.so.6
#2  0x00007f7d9f2b7b74 in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7d9f2b7c8c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007f7da3ad364b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f7da3a7eabb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007f7da38ccdfc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007f7da6b04712 in QQuickPixmapReader::run() () from /usr/lib64/libQt5Quick.so.5
#8  0x00007f7da38d2246 in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#9  0x00007f7da29fc314 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f7da31fa6dd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f7ce757b700 (LWP 7154)):
#0  0x00007f7d9f2f9894 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f7d9f2b7b1e in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f7d9f2b7c8c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f7da3ad364b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007f7da3a7eabb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007f7da38ccdfc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007f7ce8427767 in KCupsConnection::run() () from /usr/lib64/libkcupslib.so
#7  0x00007f7da38d2246 in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#8  0x00007f7da29fc314 in start_thread () from /lib64/libpthread.so.0
#9  0x00007f7da31fa6dd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f7d9655f7c0 (LWP 6881)):
[KCrash Handler]
#6  0x00007f7da31470d7 in raise () from /lib64/libc.so.6
#7  0x00007f7da314843a in abort () from /lib64/libc.so.6
#8  0x00007f7da38c09fe in QMessageLogger::fatal(char const*, ...) const () from /usr/lib64/libQt5Core.so.5
#9  0x00007f7da38bbd27 in qt_assert_x(char const*, char const*, char const*, int) () from /usr/lib64/libQt5Core.so.5
#10 0x00007f7da5ed5786 in QList<QQmlDelegateModelItem*>::at(int) const [clone .part.41] () from /usr/lib64/libQt5Qml.so.5
#11 0x00007f7da5eee09c in VDMModelDelegateDataType::notify(QQmlAdaptorModel const&, QList<QQmlDelegateModelItem*> const&, int, int, QVector<int> const&) const () from /usr/lib64/libQt5Qml.so.5
#12 0x00007f7da6187eb9 in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () from /usr/lib64/libQt5Qml.so.5
#13 0x00007f7da618d6c0 in QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib64/libQt5Qml.so.5
#14 0x00007f7da61b1d4f in QQmlDelegateModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Qml.so.5
#15 0x00007f7da61b23eb in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Qml.so.5
#16 0x00007f7da3aac76b in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#17 0x00007f7da3b21fe6 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib64/libQt5Core.so.5
#18 0x00007f7da3a58444 in QSortFilterProxyModelPrivate::_q_sourceDataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () from /usr/lib64/libQt5Core.so.5
#19 0x00007f7da3a58a38 in QSortFilterProxyModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Core.so.5
#20 0x00007f7da3aac64e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#21 0x00007f7da3b21f3c in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () from /usr/lib64/libQt5Core.so.5
#22 0x00007f7ce40bd96f in NetworkModel::updateItem(NetworkModelItem*) () from /usr/lib64/libplasmanm_internal.so
#23 0x00007f7ce40c281a in NetworkModel::addActiveConnection(QSharedPointer<NetworkManager::ActiveConnection> const&) () from /usr/lib64/libplasmanm_internal.so
#24 0x00007f7ce40c2e13 in NetworkModel::activeConnectionAdded(QString const&) () from /usr/lib64/libplasmanm_internal.so
#25 0x00007f7da3aac0d3 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#26 0x00007f7cdfdae2b5 in NetworkManager::Notifier::activeConnectionAdded(QString const&) () from /usr/lib64/libKF5NetworkManagerQt.so.6
#27 0x00007f7cdfd36873 in NetworkManager::NetworkManagerPrivate::propertiesChanged(QMap<QString, QVariant> const&) () from /usr/lib64/libKF5NetworkManagerQt.so.6
#28 0x00007f7da3aac0d3 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#29 0x00007f7cdfdb7820 in OrgFreedesktopNetworkManagerInterface::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib64/libKF5NetworkManagerQt.so.6
#30 0x00007f7cdfdbdb4b in OrgFreedesktopNetworkManagerInterface::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libKF5NetworkManagerQt.so.6
#31 0x00007f7da8d3fe35 in QDBusConnectionPrivate::deliverCall(QObject*, int, QDBusMessage const&, QVector<int> const&, int) () from /usr/lib64/libQt5DBus.so.5
#32 0x00007f7da3aad91e in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5
#33 0x00007f7da453b8dc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#34 0x00007f7da4540750 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5
#35 0x00007f7da3a8073d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#36 0x00007f7da3a836ca in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#37 0x00007f7da3ad3e73 in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/libQt5Core.so.5
#38 0x00007f7d9f2b7994 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#39 0x00007f7d9f2b7be8 in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#40 0x00007f7d9f2b7c8c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#41 0x00007f7da3ad362c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#42 0x00007f7da3a7eabb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#43 0x00007f7da3a864e6 in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5
#44 0x0000000000432816 in main ()
Comment 63 Fabio Coatti 2016-03-06 18:47:20 UTC
(In reply to David Edmundson from comment #61)
> Fabio, did that apply?

Well, the patch applied just fine; now I'm having some trouble in getting a crash dump :)
Comment 64 David Edmundson 2016-03-06 21:56:11 UTC
Created attachment 97724 [details]
Patch 2 - new debug

OK good news, that really helped I know what it could be to within a few options.

If a model emits a data changed which in turn has qml that deletes the model we'll get a crash. 

New patch adds a line of debug proving it's that cause. Once we know what we can make a patch or workaround.

Patch is against qt5.5.0 as I'm on holiday with super limited internet and that's what I had. If patch doesn't apply please just copy the three lines by hand.
Comment 65 Alexander Potashev 2016-03-06 23:46:26 UTC
Created attachment 97732 [details]
video about connection name corruption

The patch "Patch 2 - new debug" applied cleanly, but I could not reproduce the crash using the same proceduce (by clicking "Connect" for Wi-Fi connection and then for VPN connection). I guess it's because of massive debug output which shades the thread synchronization issues.

With qtdeclarative-5.5.1 + both of the attached patches I found another data integrity issue, see the attached video. In this video, "Tenda_283748" is a Wi-Fi access point, "rnet-cell-client" is a VPN connection. Here is what I do:
 1. Connect to Wi-Fi AP.
 2. When Wi-Fi connection is up, connect to VPN.
 3. While VPN is setting up, quickly click the button against "Tenda_xxxxxx" to disconnect from Wi-Fi. You would expect this button to be named "Disconnect", but it's still named "Connect".
 4. Now "Tenda_xxxxxx" is visually gone from the list, but in fact it's still here, but now entitled "rnet-cell-client".
I'm afraid this might be a different bug existing solely in plasma-pa, but I'm letting you know about it for a more complete picture.
Comment 66 Alexander Potashev 2016-03-11 13:43:15 UTC
Now I have the same crash with plasmathemeeditor:

=====
aspotashev@cell ~ $ gdb plasmathemeexplorer 
GNU gdb (Gentoo 7.10.1 vanilla) 7.10.1
Copyright (C) 2015 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://bugs.gentoo.org/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from plasmathemeexplorer...Reading symbols from /usr/lib64/debug//usr/bin/plasmathemeexplorer.debug...(no debugging symbols found)...done.
(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/plasmathemeexplorer 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Qt: gdb: -nograb added to command-line options.
         Use the -dograb option to enforce grabbing.
[New Thread 0x7fffe599a700 (LWP 12784)]
[New Thread 0x7fffdfb86700 (LWP 12785)]
org.kde.kwindowsystem: Loaded plugin "/usr/lib64/qt5/plugins/kf5/org.kde.kwindowsystem.platforms/KF5WindowSystemX11Plugin.so" for platform "xcb"
Loading theme description file "/usr/share/kpackage/genericqml/org.kde.plasma.themeexplorer/contents/data/themeDescription.json"
QCommandLineParser: option not defined: "default"
Loading theme description file "/usr/share/kpackage/genericqml/org.kde.plasma.themeexplorer/contents/data/themeDescription.json"
Trying to use rootObject before initialization is completed, whilst using setInitializationDelayed. Forcing completion
Loading theme description file "/usr/share/kpackage/genericqml/org.kde.plasma.themeexplorer/contents/data/themeDescription.json"
Start of DAVE debug
no role explicitly changed, notifying all the properties
we want to emit  8 signals
signal ids are  QVector(6, 7, 8, 9, 10, 11, 12, 13)
listing items
QQmlDMAbstractItemModelData(0xa6d750)
QQmlDMAbstractItemModelData(0x75bb50)
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
kf5.kcoreaddons.kdirwatch: "KDirWatch-1" emitting deleted "/home/aspotashev/.config/plasmarc"
Loading theme description file "/usr/share/kpackage/genericqml/org.kde.plasma.themeexplorer/contents/data/themeDescription.json"
Start of DAVE debug
no role explicitly changed, notifying all the properties
we want to emit  8 signals
signal ids are  QVector(6, 7, 8, 9, 10, 11, 12, 13)
listing items
QQmlDMAbstractItemModelData(0x2851b80)
QQmlDMAbstractItemModelData(0xbf6780)
QQmlDMAbstractItemModelData(0x28c5bb0)
QQmlDMAbstractItemModelData(0x28d71e0)
QQmlDMAbstractItemModelData(0x27c8a40)
QQmlDMAbstractItemModelData(0x27cd7b0)
QQmlDMAbstractItemModelData(0x291c020)
QQmlDMAbstractItemModelData(0x292c8d0)
QQmlDMAbstractItemModelData(0x2952110)
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
ASSERT failure in QVector<T>::at: "index out of range", file /usr/include/qt5/QtCore/qvector.h, line 393

Program received signal SIGABRT, Aborted.
0x00007ffff4bd60d7 in raise () from /lib64/libc.so.6
(gdb) thread apply all bt

Thread 3 (Thread 0x7fffdfb86700 (LWP 12785)):
#0  0x00007ffff4c80aed in poll () from /lib64/libc.so.6
#1  0x00007ffff068cf14 in g_main_context_iterate.isra () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ffff068d02c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007ffff556262c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007ffff550dabb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007ffff535bdfc in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007ffff6d455f8 in QQmlThreadPrivate::run() () from /usr/lib64/libQt5Qml.so.5
#7  0x00007ffff5361246 in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#8  0x00007ffff1f04314 in start_thread () from /lib64/libpthread.so.0
#9  0x00007ffff4c896dd in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fffe599a700 (LWP 12784)):
#0  0x00007ffff4c80aed in poll () from /lib64/libc.so.6
#1  0x00007ffff422da92 in _xcb_conn_wait () from /usr/lib64/libxcb.so.1
#2  0x00007ffff422f67f in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007fffe6ea0159 in QXcbEventReader::run() () from /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007ffff5361246 in QThreadPrivate::start(void*) () from /usr/lib64/libQt5Core.so.5
#5  0x00007ffff1f04314 in start_thread () from /lib64/libpthread.so.0
#6  0x00007ffff4c896dd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ffff7e187c0 (LWP 12779)):
#0  0x00007ffff4bd60d7 in raise () from /lib64/libc.so.6
#1  0x00007ffff4bd743a in abort () from /lib64/libc.so.6
#2  0x00007ffff534f9fe in QMessageLogger::fatal(char const*, ...) const () from /usr/lib64/libQt5Core.so.5
#3  0x00007ffff534ad27 in qt_assert_x(char const*, char const*, char const*, int) () from /usr/lib64/libQt5Core.so.5
#4  0x00007ffff6ad37a6 in QVector<int>::at(int) const [clone .part.53] () from /usr/lib64/libQt5Qml.so.5
#5  0x00007ffff6aec966 in VDMModelDelegateDataType::notify(QQmlAdaptorModel const&, QList<QQmlDelegateModelItem*> const&, int, int, QVector<int> const&) const ()
   from /usr/lib64/libQt5Qml.so.5
#6  0x00007ffff6d86469 in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () from /usr/lib64/libQt5Qml.so.5
#7  0x00007ffff6d8bb60 in QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib64/libQt5Qml.so.5
#8  0x00007ffff6db029f in QQmlDelegateModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Qml.so.5
#9  0x00007ffff6db093b in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Qml.so.5
#10 0x00007ffff553b76b in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#11 0x00007ffff55b0fe6 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib64/libQt5Core.so.5
#12 0x00007ffff54e5593 in QSortFilterProxyModelPrivate::sort() () from /usr/lib64/libQt5Core.so.5
---Type <return> to continue, or q <return> to quit---
#13 0x00007ffff54e574a in QSortFilterProxyModelPrivate::_q_sourceReset() () from /usr/lib64/libQt5Core.so.5
#14 0x00007ffff54e7a81 in QSortFilterProxyModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib64/libQt5Core.so.5
#15 0x00007ffff553b64e in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#16 0x00007ffff54bf5d5 in QAbstractItemModel::endResetModel() () from /usr/lib64/libQt5Core.so.5
#17 0x0000000000410a94 in ThemeModel::load() ()
#18 0x00000000004117d7 in ThemeModel::setTheme(QString const&) ()
#19 0x000000000041282f in ThemeModel::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) ()
#20 0x0000000000412a7b in ThemeModel::qt_metacall(QMetaObject::Call, int, void**) ()
#21 0x00007ffff6c7bf31 in QV4::QObjectWrapper::setProperty(QObject*, QV4::ExecutionContext*, QQmlPropertyData*, QV4::Value const&) () from /usr/lib64/libQt5Qml.so.5
#22 0x00007ffff6c7caae in QV4::QObjectWrapper::setQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, QV4::Value const&) () from /usr/lib64/libQt5Qml.so.5
#23 0x00007ffff6c7cc82 in QV4::QObjectWrapper::put(QV4::Managed*, QV4::String*, QV4::Value const&) () from /usr/lib64/libQt5Qml.so.5
#24 0x00007ffff6c8f26f in QV4::Runtime::setProperty(QV4::ExecutionEngine*, QV4::Value const&, int, QV4::Value const&) () from /usr/lib64/libQt5Qml.so.5
#25 0x00007fffdcca895a in ?? ()
#26 0x0000000000000000 in ?? ()
(gdb)
Comment 67 Alexander Potashev 2016-03-11 13:47:27 UTC
(In reply to Alexander Potashev from comment #66)
> Now I have the same crash with plasmathemeeditor:

To get this plasmathemeeditor crash, I had to create a new Plasma theme. Please unpack the attached plasma-theme-111.tar.bz2 into ~/.local/share/plasma/desktoptheme/ and try running plasmathemeeditor.
Comment 68 Alexander Potashev 2016-03-11 13:48:20 UTC
Created attachment 97843 [details]
.tar.bz2 archive of /home/aspotashev/.local/share/plasma/desktoptheme/111
Comment 69 Jan Grulich 2016-03-11 17:32:29 UTC
*** Bug 360412 has been marked as a duplicate of this bug. ***
Comment 70 David Edmundson 2016-03-13 01:41:08 UTC
*** Bug 360375 has been marked as a duplicate of this bug. ***
Comment 71 Alexander Potashev 2016-03-16 17:31:13 UTC
(In reply to Alexander Potashev from comment #56)
> Btw, I have this crash with Plasma 5.5.4, KF 5.19.0 and Qt 5.5.1 on Gentoo.

Cannot reproduce the crash after update to Plasma-5.5.95 and Qt 5.6.0-RC (without David's patch).
Comment 72 Alexander Potashev 2016-03-16 17:32:12 UTC
(In reply to Alexander Potashev from comment #66)
> Now I have the same crash with plasmathemeeditor:

Cannot reproduce this crash after update to Plasma-5.5.95 and Qt 5.6.0-RC (without David's patch).
Comment 73 Jan Grulich 2016-03-24 11:49:31 UTC
*** Bug 356703 has been marked as a duplicate of this bug. ***
Comment 74 Weng Xuetian 2016-03-25 22:02:06 UTC
Unfortunately now I get this crash again with qt 5.6.0, kf 5.20.0, plasma 5.6.0.
Comment 75 Jacek Pawlyta 2016-03-26 21:18:51 UTC
I see the bug again too  qt 5.6.0, kf 5.20.0, plasma 5.5.5 Fedora23
Comment 76 Jacek Pawlyta 2016-03-26 21:19:12 UTC
I see the bug again too  qt 5.6.0, kf 5.20.0, plasma 5.5.5 Fedora23
Comment 77 David Edmundson 2016-03-29 00:01:59 UTC
*** Bug 361015 has been marked as a duplicate of this bug. ***
Comment 78 David Edmundson 2016-03-29 00:02:38 UTC
*** Bug 360930 has been marked as a duplicate of this bug. ***
Comment 79 David Edmundson 2016-04-02 06:47:31 UTC
*** Bug 361245 has been marked as a duplicate of this bug. ***
Comment 80 David Edmundson 2016-04-02 06:47:37 UTC
*** Bug 361238 has been marked as a duplicate of this bug. ***
Comment 81 David Edmundson 2016-04-02 07:30:02 UTC
*** Bug 361304 has been marked as a duplicate of this bug. ***
Comment 82 Jan Grulich 2016-04-07 11:00:27 UTC
*** Bug 361444 has been marked as a duplicate of this bug. ***
Comment 83 David Edmundson 2016-04-12 23:15:10 UTC
*** Bug 361687 has been marked as a duplicate of this bug. ***
Comment 84 David Edmundson 2016-04-12 23:24:42 UTC
*** Bug 361649 has been marked as a duplicate of this bug. ***
Comment 85 David Edmundson 2016-04-12 23:39:48 UTC
*** Bug 361544 has been marked as a duplicate of this bug. ***
Comment 86 Jan Grulich 2016-04-13 10:52:29 UTC
*** Bug 361555 has been marked as a duplicate of this bug. ***
Comment 87 Jan Grulich 2016-04-18 05:43:55 UTC
*** Bug 361808 has been marked as a duplicate of this bug. ***
Comment 88 madcatx 2016-04-18 16:37:37 UTC
Thanks for pointing me to this bug. I did a little investigation on my own, although I'm not sure how useful it was. I discovered a few things.

Dave's "debug 2" patch appears to be wrong. The patch leads to this code:

 for (int i = 0; i < signalIndexes.count(); ++i)
                     qDebug() << "DAVE notifying delegates";
                     QMetaObject::activate(item, signalIndexes.at(i), 0);

which I assume is supposed to look like this instead:

 qDebug() << "DAVE notifying delegates";
 for (int i = 0; i < signalIndexes.count(); ++i) 
                     QMetaObject::activate(item, signalIndexes.at(i), 0);


I believe that's what's caused the odd behavior noticed by Alexander.

I modified the patch and replaced qDebug() with fputs(), hoping that if there is a threading issue the simpler nature of fputs() might not mess with the timing too much to mask the problem. qt5-declarative package with my patch still crashes the plasma for me with the following output in the terminal. To trigger the crash I had my laptop connect to network "labak" and once the link was up I tried to connect to another available network:

DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
Currrent active notifications: QHash()
Guessing partOf as: 0
 New Notification:  "labak" "Connection 'labak' activated." -1 & Part of: 0
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
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DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
KCrash: Attempting to start /usr/bin/plasmashell from kdeinit
sock_file=/run/user/1000/kdeinit5__0
KCrash: Application 'plasmashell' crashing...
KCrash: Attempting to start /usr/lib/drkonqi from kdeinit
sock_file=/run/user/1000/kdeinit5__0
QSocketNotifier: Invalid socket 8 and type 'Read', disabling...
QSocketNotifier: Invalid socket 18 and type 'Read', disabling...
zsh: suspended (signal)  plasmashell
Comment 89 lld.panos 2016-04-19 10:18:01 UTC
Hi,

I deeply appreciate your interest and response in this matter,
I'm really not an expert, I can hardly understand what you wrote, and I 
can simply understand programming code, going through it, but that's 
about it...
I am a dedicated linux user, I am as "expert" as that can take me, 
without investing any more extra time on it. I am a network engineer, so 
linux is a natural choice/environment for me.

Anyway, I'm afraid I can't help you much, unless you specify files and 
logs that you need, or further config details.

What I can tell you, is that after I read your mail, I performed all 
offered upgrades in my system, and then tried it again.

Just before I write this mail:
1. Disconnect manually from Network Manager GUI my work cable Ethernet 
connection.
2. Choose a wifi connection, select, then "connect".
It automatically produced a crash.
3. Once I see the menu bars again, I open the NM again, and select my 
VPN profile to connect at work (the Wifi is an external connection).
As soon as I select it, it crashes again: Graphical interface goes, and 
comes back: Same visual effect as if "Explorer" process has crashed in 
Windows. You see your desktop background empty, with nothing on it for a 
short while, then things come back again.

4. Give up, disconnect VPN and WiFi, connect back to Ethernet connection 
: To be honest, I was expecting another crash, but it didn't. It seems 
to go back to Wired Ethernet, OK. However, applications of wifi and VPN 
profiles make the GUI crash. If I could bet money on it, I would bet 
that wifi doesn't always fail, but aplication of VPN profile still 
always does.

Curiously enough, (it doesn't always occur, but) some of the times, when 
the crash occurs, Thunderbird goes as well. However, this does not occur 
always, this is why I cannot insist on it, I just mention it in case it 
provides a hint.

If you need any further info from my system, please do not hesitate to 
ask, I'd be happy to provide as much info as I can. But once I opened 
the bug through the reporting tool, I do not keep reporting, because I 
do not want to stuff the system with duplicate info.

Kind Regards,

Panos K



On 18/04/16 18:37, via KDE Bugzilla wrote:
> https://bugs.kde.org/show_bug.cgi?id=346118
>
> --- Comment #88 from madcatx@atlas.cz ---
> Thanks for pointing me to this bug. I did a little investigation on my own,
> although I'm not sure how useful it was. I discovered a few things.
>
> Dave's "debug 2" patch appears to be wrong. The patch leads to this code:
>
>   for (int i = 0; i < signalIndexes.count(); ++i)
>                       qDebug() << "DAVE notifying delegates";
>                       QMetaObject::activate(item, signalIndexes.at(i), 0);
>
> which I assume is supposed to look like this instead:
>
>   qDebug() << "DAVE notifying delegates";
>   for (int i = 0; i < signalIndexes.count(); ++i)
>                       QMetaObject::activate(item, signalIndexes.at(i), 0);
>
>
> I believe that's what's caused the odd behavior noticed by Alexander.
>
> I modified the patch and replaced qDebug() with fputs(), hoping that if there
> is a threading issue the simpler nature of fputs() might not mess with the
> timing too much to mask the problem. qt5-declarative package with my patch
> still crashes the plasma for me with the following output in the terminal. To
> trigger the crash I had my laptop connect to network "labak" and once the link
> was up I tried to connect to another available network:
>
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> Currrent active notifications: QHash()
> Guessing partOf as: 0
>   New Notification:  "labak" "Connection 'labak' activated." -1 & Part of: 0
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> DAVE notifying delegates
> KCrash: Attempting to start /usr/bin/plasmashell from kdeinit
> sock_file=/run/user/1000/kdeinit5__0
> KCrash: Application 'plasmashell' crashing...
> KCrash: Attempting to start /usr/lib/drkonqi from kdeinit
> sock_file=/run/user/1000/kdeinit5__0
> QSocketNotifier: Invalid socket 8 and type 'Read', disabling...
> QSocketNotifier: Invalid socket 18 and type 'Read', disabling...
> zsh: suspended (signal)  plasmashell
>
Comment 90 madcatx 2016-04-19 15:03:49 UTC
I gave it another go, this time with plasmashell running in a debugger. I'm afraid that this is the best I can do for now:

DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates

Thread 1 "plasmashell" received signal SIGBUS, Bus error.
0x00007ffff4bec6c6 in ?? () from /usr/lib/libQt5Qml.so.5
(gdb) bt
#0  0x00007ffff4bec6c6 in ?? () from /usr/lib/libQt5Qml.so.5
#1  0x00007ffff4e3600a in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () from /usr/lib/libQt5Qml.so.5
#2  0x00007ffff4e3a7d0 in QQmlDelegateModel::_q_layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint)
    () from /usr/lib/libQt5Qml.so.5
#3  0x00007ffff4e5daff in ?? () from /usr/lib/libQt5Qml.so.5
#4  0x00007ffff4e5e298 in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQt5Qml.so.5
#5  0x00007ffff1c729f0 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#6  0x00007ffff1cebac6 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) ()
   from /usr/lib/libQt5Core.so.5
#7  0x00007ffff1c148d1 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007ffff1c16458 in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007ffff1c72870 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#10 0x00007ffff1ceb9dc in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) ()
   from /usr/lib/libQt5Core.so.5
#11 0x00007fff2b29ec1d in NetworkModel::updateItem(NetworkModelItem*) () from /usr/lib/libplasmanm_internal.so
#12 0x00007fff2b29fc34 in NetworkModel::activeConnectionStateChanged(NetworkManager::ActiveConnection::State) ()
   from /usr/lib/libplasmanm_internal.so
#13 0x00007ffff1c72bae in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#14 0x00007fff2b034f91 in NetworkManager::ActiveConnection::stateChanged(NetworkManager::ActiveConnection::State) ()
   from /usr/lib/libKF5NetworkManagerQt.so.6
#15 0x00007fff2af7bc4a in ?? () from /usr/lib/libKF5NetworkManagerQt.so.6
#16 0x00007ffff1c72bae in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#17 0x00007fff2b03db93 in ?? () from /usr/lib/libKF5NetworkManagerQt.so.6
#18 0x00007fff2b045583 in ?? () from /usr/lib/libKF5NetworkManagerQt.so.6
#19 0x00007ffff2a3a643 in ?? () from /usr/lib/libQt5DBus.so.5
#20 0x00007ffff1c73659 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#21 0x00007ffff2df768c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#22 0x00007ffff2dfc8f6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#23 0x00007ffff1c46518 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#24 0x00007ffff1c483da in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#25 0x00007ffff1c9b883 in ?? () from /usr/lib/libQt5Core.so.5
#26 0x00007fffed803f07 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0x00007fffed804160 in ?? () from /usr/lib/libglib-2.0.so.0
#28 0x00007fffed80420c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0x00007ffff1c9bc8f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
---Type <return> to continue, or q <return> to quit---
#30 0x00007ffff1c446fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#31 0x00007ffff1c4cb7c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#32 0x000000000041c176 in ?? ()
#33 0x00007ffff12c5710 in __libc_start_main () from /usr/lib/libc.so.6
#34 0x000000000041c2d9 in _start ()
Comment 91 David Edmundson 2016-04-20 11:19:12 UTC
*** Bug 361749 has been marked as a duplicate of this bug. ***
Comment 92 madcatx 2016-04-20 11:58:34 UTC
I finally managed to get a good backtrace. This looks a lot like a threading issue. Something seems to modify the "items" QVector while the notify() function in QQmlAdaptorModel is iterating over it. I removed the pass by reference to the nofity() function and with that removed I don't get the crash anymore but the notifications are sent to wrong targets. Let's hope that the Qt folk can sort this out.

--- Backtrace ---

DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
DAVE notifying delegates
ASSERT failure in QList<T>::at: "index out of range", file /usr/include/qt/QtCore/qlist.h, line 531

Thread 1 "plasmashell" received signal SIGABRT, Aborted.
0x00007ffff122c2a8 in raise () from /usr/lib/libc.so.6
(gdb) bt
#0  0x00007ffff122c2a8 in raise () from /usr/lib/libc.so.6
#1  0x00007ffff122d72a in abort () from /usr/lib/libc.so.6
#2  0x00007ffff19aef41 in QMessageLogger::fatal(char const*, ...) const () from /usr/lib/libQt5Core.so.5
#3  0x00007ffff19aa2d1 in qt_assert_x(char const*, char const*, char const*, int) () from /usr/lib/libQt5Core.so.5
#4  0x00007ffff4b4aeb7 in QList<int>::at (i=10, this=0x360cf08) at /usr/include/qt/QtCore/qlist.h:531
#5  VDMModelDelegateDataType::notify (this=<optimized out>, items=..., index=<optimized out>,
    count=<optimized out>, roles=...)
    at /home/madcat/abs/qt5-declarative/src/qtdeclarative-opensource-src-5.6.0/src/qml/util/qqmladaptormodel.cpp:172
#6  0x00007ffff4dbe36a in QQmlAdaptorModel::notify (roles=..., count=10, index=<optimized out>, items=...,
    this=0x360cdc8)
    at /home/madcat/abs/qt5-declarative/src/qtdeclarative-opensource-src-5.6.0/include/QtQml/5.6.0/QtQml/private/../../../../../src/qml/util/qqmladaptormodel_p.h:129
#7  QQmlDelegateModel::_q_itemsChanged (this=this@entry=0x360c6c0, index=index@entry=0, count=10, roles=...)
    at /home/madcat/abs/qt5-declarative/src/qtdeclarative-opensource-src-5.6.0/src/qml/types/qqmldelegatemodel.cpp:1142
#8  0x00007ffff4dc319c in QQmlDelegateModel::_q_layoutChanged (this=0x360c6c0, parents=..., hint=<optimized out>)
    at /home/madcat/abs/qt5-declarative/src/qtdeclarative-opensource-src-5.6.0/src/qml/types/qqmldelegatemodel.cpp:1606
#9  0x00007ffff4deb0bf in QQmlDelegateModel::qt_static_metacall (_o=_o@entry=0x360c6c0,
    _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=14, _a=_a@entry=0x7fffffffd300)
    at .moc/moc_qqmldelegatemodel_p.cpp:205
#10 0x00007ffff4deb8b8 in QQmlDelegateModel::qt_metacall (this=0x360c6c0, _c=QMetaObject::InvokeMetaMethod,
    _id=14, _a=0x7fffffffd300) at .moc/moc_qqmldelegatemodel_p.cpp:347
#11 0x00007ffff1bc69f0 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#12 0x00007ffff1c3fac6 in QAbstractItemModel::layoutChanged(QList<QPersistentModelIndex> const&, QAbstractItemModel::LayoutChangeHint) () from /usr/lib/libQt5Core.so.5
#13 0x00007ffff1b688d1 in ?? () from /usr/lib/libQt5Core.so.5
#14 0x00007ffff1b6a458 in ?? () from /usr/lib/libQt5Core.so.5
#15 0x00007ffff1bc6870 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#16 0x00007ffff1c3f9dc in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&, QVector<int> const&) () from /usr/lib/libQt5Core.so.5
#17 0x00007fff2b1cac1d in NetworkModel::updateItem(NetworkModelItem*) () from /usr/lib/libplasmanm_internal.so
#18 0x00007fff2b1cbc34 in NetworkModel::activeConnectionStateChanged(NetworkManager::ActiveConnection::State) () from /usr/lib/libplasmanm_internal.so
#19 0x00007ffff1bc6bae in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#20 0x00007fff2af60f91 in NetworkManager::ActiveConnection::stateChanged(NetworkManager::ActiveConnection::State) () from /usr/lib/libKF5NetworkManagerQt.so.6
#21 0x00007fff2aea7c4a in ?? () from /usr/lib/libKF5NetworkManagerQt.so.6
#22 0x00007ffff1bc6bae in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQt5Core.so.5
#23 0x00007fff2af69b93 in ?? () from /usr/lib/libKF5NetworkManagerQt.so.6
#24 0x00007fff2af71583 in ?? () from /usr/lib/libKF5NetworkManagerQt.so.6
#25 0x00007ffff298e643 in ?? () from /usr/lib/libQt5DBus.so.5
#26 0x00007ffff1bc7659 in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#27 0x00007ffff2d4b68c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#28 0x00007ffff2d508f6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#29 0x00007ffff1b9a518 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#30 0x00007ffff1b9c3da in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#31 0x00007ffff1bef883 in ?? () from /usr/lib/libQt5Core.so.5
#32 0x00007fffed757f07 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#33 0x00007fffed758160 in ?? () from /usr/lib/libglib-2.0.so.0
#34 0x00007fffed75820c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#35 0x00007ffff1befc8f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#36 0x00007ffff1b986fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#37 0x00007ffff1ba0b7c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#38 0x000000000041c176 in ?? ()
#39 0x00007ffff1219710 in __libc_start_main () from /usr/lib/libc.so.6
#40 0x000000000041c2d9 in _start ()
Comment 93 Jan Grulich 2016-04-22 10:15:05 UTC
*** Bug 362072 has been marked as a duplicate of this bug. ***
Comment 94 David Edmundson 2016-04-29 13:48:54 UTC
*** Bug 358245 has been marked as a duplicate of this bug. ***
Comment 95 David Edmundson 2016-04-29 13:49:17 UTC
*** Bug 362054 has been marked as a duplicate of this bug. ***
Comment 96 David Edmundson 2016-04-29 13:50:07 UTC
*** Bug 362159 has been marked as a duplicate of this bug. ***
Comment 97 Jan Grulich 2016-05-04 11:08:46 UTC
*** Bug 362574 has been marked as a duplicate of this bug. ***
Comment 98 David Edmundson 2016-05-04 12:40:39 UTC
*** Bug 362633 has been marked as a duplicate of this bug. ***
Comment 99 Rex Dieter 2016-05-09 19:10:02 UTC
Taking the liberty of re-opening this bug, at least until some Qt upstream bug gets (re)opened
Comment 100 Diego 2016-05-10 09:00:03 UTC
(In reply to Rex Dieter from comment #99)
> Taking the liberty of re-opening this bug, at least until some Qt upstream
> bug gets (re)opened

I've commented on:
https://bugreports.qt.io/browse/QTBUG-43827
Hope it's the correct report.
Comment 101 Diego 2016-05-10 09:31:18 UTC
(In reply to Diego from comment #100)
> (In reply to Rex Dieter from comment #99)
> > Taking the liberty of re-opening this bug, at least until some Qt upstream
> > bug gets (re)opened
> 
> I've commented on:
> https://bugreports.qt.io/browse/QTBUG-43827
> Hope it's the correct report.

Looks like it wasn't the correct one.
Giuseppe D'Angelo from Qt wrote: "I don't think it's about this bug. This is about a specific regression introduced in a commit, which led to reverting the code to the previous version. Hence either you're talking about the bug that was meant to be fixed (QTBUG-1548), or about some other bug, which is quite likely since QTBUG-1548 is not about fixing some crash. "

So is this KDE crash a consequence of modified sorting caused by the (open) QTBUG-1548?
https://bugreports.qt.io/browse/QTBUG-1548
Comment 102 Jan Grulich 2016-05-12 12:11:03 UTC
*** Bug 362819 has been marked as a duplicate of this bug. ***
Comment 103 Jan Grulich 2016-05-12 12:11:06 UTC
*** Bug 362781 has been marked as a duplicate of this bug. ***
Comment 104 Jan Grulich 2016-05-12 12:54:01 UTC
*** Bug 362753 has been marked as a duplicate of this bug. ***
Comment 105 Jan Grulich 2016-05-12 12:54:08 UTC
*** Bug 362737 has been marked as a duplicate of this bug. ***
Comment 106 Jan Grulich 2016-05-19 13:00:47 UTC
*** Bug 363208 has been marked as a duplicate of this bug. ***
Comment 107 Jan Grulich 2016-05-19 13:00:53 UTC
*** Bug 363101 has been marked as a duplicate of this bug. ***
Comment 108 Lamarque V. Souza 2016-05-27 21:41:04 UTC
Created attachment 99222 [details]
Fix crash in libQt5Qml

This patch against qtdeclarative-opensource-src-5.5.1 fixes the problem for me. Somehow the items QList shrinks from 12 items to 10 items during the for loop, which causes the crash. Please test this patch and report if it fixes the problem for you too.
Comment 109 Diego 2016-05-31 09:46:05 UTC
(In reply to Lamarque V. Souza from comment #108)
> Created attachment 99222 [details]
> Fix crash in libQt5Qml
> 
> This patch against qtdeclarative-opensource-src-5.5.1 fixes the problem for
> me. Somehow the items QList shrinks from 12 items to 10 items during the for
> loop, which causes the crash. Please test this patch and report if it fixes
> the problem for you too.

Here are Fedora 23 packages including the patch, for those interested in testing:
https://cloud.wyffy.com/index.php/s/C4zaHblCObJaxIr
I'll report my testing results soon.
Comment 110 Diego 2016-06-01 07:28:39 UTC
(In reply to Diego from comment #109)
> (In reply to Lamarque V. Souza from comment #108)
> > Created attachment 99222 [details]
> > Fix crash in libQt5Qml
> > 
> > This patch against qtdeclarative-opensource-src-5.5.1 fixes the problem for
> > me. Somehow the items QList shrinks from 12 items to 10 items during the for
> > loop, which causes the crash. Please test this patch and report if it fixes
> > the problem for you too.
> 
> Here are Fedora 23 packages including the patch, for those interested in
> testing:
> https://cloud.wyffy.com/index.php/s/C4zaHblCObJaxIr
> I'll report my testing results soon.

@Lamarque: so far so good; I haven't been able to reproduce the crash with your patch applied.

For those on Fedora 23/24, please don't use my packages, as now an official package has been submitted for testing:
https://bodhi.fedoraproject.org/updates/FEDORA-2016-e78000fedc
https://bugzilla.redhat.com/show_bug.cgi?id=1259472
Comment 111 madcatx 2016-06-02 12:00:32 UTC
Somewhat off topic:

I wanted to try out Lamarque's proposed fix but I ran into what seems to be problem with GCC 6. No matter whether I build the qt5-declarative package (Arch Linux) with our without the patch I always get a segfault in libQt5Qml.so. It's difficult to debug because I cannot even log in since the problem takes down the sddm-greeter. Original package from Arch Linux repo which was built with GCC 5 works. Has anybody else experienced this?
Comment 112 Jan Grulich 2016-06-02 12:10:48 UTC
Check our Fedora package, we have GCC 6 for a while in Fedora 24+ and had some troubles with that if I remember correctly.

Link: http://pkgs.fedoraproject.org/cgit/rpms/qt5-qtdeclarative.git/log/?h=f24
Comment 113 Dennis Schridde 2016-06-02 12:39:09 UTC
(In reply to madcatx from comment #111)
> Somewhat off topic:
> 
> I wanted to try out Lamarque's proposed fix but I ran into what seems to be
> problem with GCC 6. No matter whether I build the qt5-declarative package
> (Arch Linux) with our without the patch I always get a segfault in
> libQt5Qml.so. It's difficult to debug because I cannot even log in since the
> problem takes down the sddm-greeter. Original package from Arch Linux repo
> which was built with GCC 5 works. Has anybody else experienced this?

What you see is probably the results of undefined behaviour, which in GCC 6 results in crashes due to more aggressive optimisations: https://bugreports.qt.io/browse/QTBUG-52057
Comment 114 Roland 2016-06-06 05:53:23 UTC
I am having the same issue, on ubuntu 16.04.

Plasma-nm crashes when i press connect on an excisting pre-configured vpn.

Kind regards
Comment 115 Lamarque V. Souza 2016-06-07 02:00:57 UTC
Created attachment 99393 [details]
Fix problem without  changing libQt5Qml.

Can someone test this patch against Plasma NM? You must revert the patch to qtdeclarative. This is another attempt to fix the crash, it works for me. The issue with the other patch is that it probably fixes a symptom instead of the real problem: https://codereview.qt-project.org/#/c/160884/
Comment 116 Bhushan Shah 2016-06-07 04:33:38 UTC
*** Bug 364032 has been marked as a duplicate of this bug. ***
Comment 117 Bhushan Shah 2016-06-07 04:34:15 UTC
*** Bug 363996 has been marked as a duplicate of this bug. ***
Comment 118 Roland 2016-06-07 06:18:11 UTC
(In reply to Lamarque V. Souza from comment #115)
> Created attachment 99393 [details]
> Fix problem without  changing libQt5Qml.
> 
> Can someone test this patch against Plasma NM? You must revert the patch to
> qtdeclarative. This is another attempt to fix the crash, it works for me.
> The issue with the other patch is that it probably fixes a symptom instead
> of the real problem: https://codereview.qt-project.org/#/c/160884/

This patch refelcts the plasama-nm crashes when connecting to a vpn?

How do i apply this patch? This matter is new for me.
Comment 119 Lamarque V. Souza 2016-06-07 16:36:40 UTC
(In reply to Roland from comment #118)
> (In reply to Lamarque V. Souza from comment #115)
> > Created attachment 99393 [details]
> > Fix problem without  changing libQt5Qml.
> > 
> > Can someone test this patch against Plasma NM? You must revert the patch to
> > qtdeclarative. This is another attempt to fix the crash, it works for me.
> > The issue with the other patch is that it probably fixes a symptom instead
> > of the real problem: https://codereview.qt-project.org/#/c/160884/
> 
> This patch refelcts the plasama-nm crashes when connecting to a vpn?
> 
> How do i apply this patch? This matter is new for me.

This bug entry is about the crash when changing MTU value. You have to open another bug report about other bugs.
Comment 120 Diego 2016-06-10 07:22:02 UTC
(In reply to Lamarque V. Souza from comment #119)
> 
> This bug entry is about the crash when changing MTU value. You have to open
> another bug report about other bugs.

Weird thing is that:
- VPN crash reports get marked (for example by Jan Grulich) as a duplicate of this bug
- you previous patch against qtdeclarative fixed the problem with VPN too.

So there's probably no need to open separate reports yet (or we can just "unduplicate" one of the VPN ones).
Comment 121 Lamarque V. Souza 2016-06-10 14:37:16 UTC
(In reply to Diego from comment #120)
> (In reply to Lamarque V. Souza from comment #119)
> > 
> > This bug entry is about the crash when changing MTU value. You have to open
> > another bug report about other bugs.
> 
> Weird thing is that:
> - VPN crash reports get marked (for example by Jan Grulich) as a duplicate
> of this bug
> - you previous patch against qtdeclarative fixed the problem with VPN too.
> 
> So there's probably no need to open separate reports yet (or we can just
> "unduplicate" one of the VPN ones).

If the vpn crash has simular backtrace as this one then they are the same bug and there is no need to open a new bug report.
Comment 122 Christoph Feck 2016-06-13 14:26:56 UTC
*** Bug 360842 has been marked as a duplicate of this bug. ***
Comment 123 Christoph Feck 2016-06-13 14:27:35 UTC
*** Bug 363095 has been marked as a duplicate of this bug. ***
Comment 124 Christoph Feck 2016-06-13 14:28:30 UTC
*** Bug 363145 has been marked as a duplicate of this bug. ***
Comment 125 Christoph Feck 2016-06-13 14:29:01 UTC
*** Bug 363241 has been marked as a duplicate of this bug. ***
Comment 126 Christoph Feck 2016-06-13 14:29:44 UTC
*** Bug 363469 has been marked as a duplicate of this bug. ***
Comment 127 Christoph Feck 2016-06-13 14:30:13 UTC
*** Bug 363661 has been marked as a duplicate of this bug. ***
Comment 128 Christoph Feck 2016-06-13 14:30:39 UTC
*** Bug 363745 has been marked as a duplicate of this bug. ***
Comment 129 Christoph Feck 2016-06-13 14:31:09 UTC
*** Bug 364255 has been marked as a duplicate of this bug. ***
Comment 130 madcatx 2016-06-13 17:00:51 UTC
I applied the patch to plasma-nm a few days ago and things seem good so far. I tried to juggle with various wired, wireless and VPN network this morning to give it a bit of a stress test and plasma-nm handled everything perfectly. I don't move around with my laptop a lot these days so I cannot replicate the conditions where I was noticing the problems well enough; on the other hand I was always getting a few plasma crashes a week because of this and plasma stayed rock-solid since I applied the patch.
Comment 131 Lamarque V. Souza 2016-06-15 18:13:24 UTC
Git commit ee14918070204deabcf48a669edf97a427f1d0f2 by Lamarque V. Souza.
Committed on 15/06/2016 at 18:08.
Pushed by lvsouza into branch 'master'.

Reset the whole model instead of emitting dataChanged() for each item.

Emitting several dataChanged() in a row, without going back to Qt's event
loop in between seems to cause reentrancy problems in the QML delegates
connected to this model.

Upstream version of our bug #346118:
https://bugreports.qt.io/browse/QTBUG-53677

Tentative patch to fix the bug above:
https://codereview.qt-project.org/#/c/160884/

M  +9    -3    libs/models/networkmodel.cpp

http://commits.kde.org/plasma-nm/ee14918070204deabcf48a669edf97a427f1d0f2
Comment 132 Christoph Feck 2016-06-16 06:39:25 UTC
*** Bug 364344 has been marked as a duplicate of this bug. ***
Comment 133 Max 2016-06-16 06:53:22 UTC
Perhaps it's not that you can't send multiple dataChanged signals without returning to event loop, but dataChanged is not correct signal here. dataChanged must be sent if only data of items is changed, but since order of the items in the list is also changing, beginResetModel-endResetModel pair or layoutAboutToBeChanged-layoutChanged are both correct solutions here.
Comment 134 David Edmundson 2016-06-18 20:24:17 UTC
*** Bug 364377 has been marked as a duplicate of this bug. ***
Comment 135 David Edmundson 2016-06-20 23:06:52 UTC
*** Bug 364484 has been marked as a duplicate of this bug. ***
Comment 136 David Edmundson 2016-06-30 20:41:26 UTC
*** Bug 364671 has been marked as a duplicate of this bug. ***
Comment 137 David Edmundson 2016-07-04 14:01:17 UTC
*** Bug 364442 has been marked as a duplicate of this bug. ***
Comment 138 David Edmundson 2016-07-13 19:19:57 UTC
*** Bug 365583 has been marked as a duplicate of this bug. ***
Comment 139 David Edmundson 2016-07-13 19:19:57 UTC
*** Bug 365592 has been marked as a duplicate of this bug. ***
Comment 140 Jan Grulich 2016-07-15 06:50:28 UTC
*** Bug 365341 has been marked as a duplicate of this bug. ***
Comment 141 David Edmundson 2016-07-16 15:18:48 UTC
*** Bug 365730 has been marked as a duplicate of this bug. ***
Comment 142 David Edmundson 2016-07-19 14:51:42 UTC
*** Bug 365860 has been marked as a duplicate of this bug. ***
Comment 143 David Edmundson 2016-07-20 23:58:58 UTC
*** Bug 365902 has been marked as a duplicate of this bug. ***
Comment 144 whites11 2016-07-26 16:39:12 UTC
For me this bug appeared a few days ago.
My system details:

up-to-date arch linux.
plasma-nm: 5.7.2
plasma-workspace: 5.7.2
qt: 5.7.0

when I try to connect to a VPN using networkmanager the whole plasmashell crashes.
I recompiled plasma-desktop and plasma-nm with debug enabled but I must have done something wrong because I cannot produce a significative backtrace.
If you guide me I can reproduce the problem very precisely to get the backtrace.

# coredumpctl gdb plasmashell
           PID: 19230 (plasmashell)
           UID: 1000 (whites)
           GID: 100 (users)
        Signal: 11 (SEGV)
     Timestamp: lun 2016-07-25 15:23:17 CEST (1 day 3h ago)
  Command Line: /usr/bin/plasmashell
    Executable: /usr/bin/plasmashell
 Control Group: /user.slice/user-1000.slice/session-c2.scope
          Unit: session-c2.scope
         Slice: user-1000.slice
       Session: c2
     Owner UID: 1000 (whites)
       Boot ID: a9d393454c334abbbc38526fe46a6eed
    Machine ID: 33cac937ea1a406db83de0e81f0d58af
      Hostname: whitesbook
      Coredump: /var/lib/systemd/coredump/core.plasmashell.1000.a9d393454c334abbbc38526fe46a6eed.19230.1469452997000000000000.lz4
       Message: Process 19230 (plasmashell) of user 1000 dumped core.
                
                Stack trace of thread 19230:
                #0  0x00007fe55ce10179 operator() (/usr/lib/qt/qml/org/kde/plasma/networkmanagement/libplasmanm_qmlplugins.so)

GNU gdb (GDB) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/plasmashell...done.
BFD: Warning: /var/tmp/coredump-ur2o55 is truncated: expected core file size >= 2350624768, found: 2147483648.
[New LWP 19230]
[New LWP 19235]
[New LWP 19233]
[New LWP 19236]
[New LWP 19237]
[New LWP 19238]
[New LWP 19239]
Cannot access memory at address 0x7fe61bb470e8
Cannot access memory at address 0x7fe61bb470e0
Failed to read a valid object file image from memory.
Core was generated by `/usr/bin/plasmashell'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fe55ce10179 in ?? ()
[Current thread is 1 (LWP 19230)]
(gdb) bt
#0  0x00007fe55ce10179 in ?? ()
Backtrace stopped: Cannot access memory at address 0x7ffe81ea8b30
Comment 145 Lamarque V. Souza 2016-07-26 16:56:45 UTC
(In reply to whites11 from comment #144)
> I recompiled plasma-desktop and plasma-nm with debug enabled but I must have
> done something wrong because I cannot produce a significative backtrace.
> If you guide me I can reproduce the problem very precisely to get the
> backtrace.

The assert triggered here is in QtDeclarative, so you must load Qt's symbols to get a good backtrace. Have you tried this? https://wiki.archlinux.org/index.php/Debug_-_Getting_Traces
 
>                 Stack trace of thread 19230:
>                 #0  0x00007fe55ce10179 operator()
> (/usr/lib/qt/qml/org/kde/plasma/networkmanagement/libplasmanm_qmlplugins.so)

This indicates a problem in an operator() function. I do not recall any operator() in the backtraces about this bug.
Comment 146 whites11 2016-07-26 19:48:39 UTC
I installed the debug version of qt-declarative but still no backtrace.
Which of the packages at the following link could be the correct one in your opinion?

https://github.com/The-Compiler/qt-debug-pkgbuild
Comment 147 madcatx 2016-07-26 23:27:43 UTC
You need both qt5-declarative and plasma-nm package built with debugging symbols to get a useful backtrace. Are you sure you set options=("!strip") in plasma-nm's PKGBUILD? Without it the debugging symbols get stripped away. I'm not sure what is the point to run gdb through codedumpctl, running just plain gdb worked perfectly fine for me.
Comment 148 whites11 2016-07-27 07:11:56 UTC
(In reply to madcatx from comment #147)
> You need both qt5-declarative and plasma-nm package built with debugging
> symbols to get a useful backtrace. Are you sure you set options=("!strip")
> in plasma-nm's PKGBUILD? Without it the debugging symbols get stripped away.
> I'm not sure what is the point to run gdb through codedumpctl, running just
> plain gdb worked perfectly fine for me.

Thanks for reply.
plasma-nm is not stripped:

/usr/lib/libplasmanm_internal.so: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=dbdc42f144e99d59f1e83c1b331bcf50234db6cc, not stripped

qt is not stripped:

/usr/lib/libQt5Gui.so.5.7.0: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=62cb08d718d538911260b1462f9f5b34dcdd4b94, not stripped

qt5-declarative is not stripped

/usr/lib/libQt5Qml.so.5.7.0: ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=849296eda22a1f1d6ef416f95b8983efdf9bd8f4, not stripped

anyway I still see no backtrace.
Could you help me using gdb directly without coredumpctl?
Comment 149 Lamarque V. Souza 2016-07-27 11:46:48 UTC
(In reply to whites11 from comment #148)
> anyway I still see no backtrace.
> Could you help me using gdb directly without coredumpctl?

In konsole:

$ kquitapp5 plasmashell
$ gdb plasmashell
gdb> run
Comment 150 whites11 2016-07-27 12:27:30 UTC
(In reply to Lamarque V. Souza from comment #149)
> (In reply to whites11 from comment #148)
> > anyway I still see no backtrace.
> > Could you help me using gdb directly without coredumpctl?
> 
> In konsole:
> 
> $ kquitapp5 plasmashell
> $ gdb plasmashell
> gdb> run

Thanks.
this is a (kind of) backtrace I got from the above procedure:

Thread 1 "plasmashell" received signal SIGSEGV, Segmentation fault.
0x00007fff39443179 in NetworkStatus::<lambda(const Ptr&, const Ptr&)>::operator() (__closure=<optimized out>, right=..., left=...)
    at /home/whites/Downloads/plasma-nm/src/plasma-nm-5.7.2/libs/declarative/networkstatus.cpp:168
168             return NetworkStatus::connectionTypeToSortedType(left->type()) <= NetworkStatus::connectionTypeToSortedType(right->type());
Comment 151 Lamarque V. Souza 2016-07-27 13:16:31 UTC
(In reply to whites11 from comment #150)
> (In reply to Lamarque V. Souza from comment #149)
> > (In reply to whites11 from comment #148)
> > > anyway I still see no backtrace.
> > > Could you help me using gdb directly without coredumpctl?
> > 
> > In konsole:
> > 
> > $ kquitapp5 plasmashell
> > $ gdb plasmashell
> > gdb> run
> 
> Thanks.
> this is a (kind of) backtrace I got from the above procedure:
> 
> Thread 1 "plasmashell" received signal SIGSEGV, Segmentation fault.
> 0x00007fff39443179 in NetworkStatus::<lambda(const Ptr&, const
> Ptr&)>::operator() (__closure=<optimized out>, right=..., left=...)
>     at
> /home/whites/Downloads/plasma-nm/src/plasma-nm-5.7.2/libs/declarative/
> networkstatus.cpp:168
> 168             return
> NetworkStatus::connectionTypeToSortedType(left->type()) <=
> NetworkStatus::connectionTypeToSortedType(right->type());

This is definitely a different bug than this one. Please open a different bug report to continue this conversation there.
Comment 152 whites11 2016-07-27 13:24:25 UTC
(In reply to Lamarque V. Souza from comment #151)

> This is definitely a different bug than this one. Please open a different
> bug report to continue this conversation there.

Ok, my apologies, I opened a new bug report https://bugs.kde.org/show_bug.cgi?id=366164
Comment 153 David Edmundson 2016-08-02 21:15:39 UTC
*** Bug 366287 has been marked as a duplicate of this bug. ***
Comment 154 David Edmundson 2016-08-02 21:15:52 UTC
*** Bug 366270 has been marked as a duplicate of this bug. ***
Comment 155 David Edmundson 2016-08-02 21:16:19 UTC
*** Bug 366228 has been marked as a duplicate of this bug. ***
Comment 156 David Edmundson 2016-08-02 21:16:36 UTC
*** Bug 366193 has been marked as a duplicate of this bug. ***
Comment 157 David Edmundson 2016-08-02 21:23:53 UTC
*** Bug 366145 has been marked as a duplicate of this bug. ***
Comment 158 David Edmundson 2016-08-16 12:16:13 UTC
*** Bug 366369 has been marked as a duplicate of this bug. ***
Comment 159 David Edmundson 2016-08-16 12:16:43 UTC
*** Bug 366439 has been marked as a duplicate of this bug. ***
Comment 160 Rex Dieter 2016-09-12 03:16:10 UTC
*** Bug 368667 has been marked as a duplicate of this bug. ***
Comment 161 David Edmundson 2016-09-14 12:29:59 UTC
*** Bug 368781 has been marked as a duplicate of this bug. ***
Comment 162 David Edmundson 2016-09-24 12:20:06 UTC
*** Bug 369282 has been marked as a duplicate of this bug. ***
Comment 163 David Edmundson 2016-09-30 19:52:00 UTC
*** Bug 369583 has been marked as a duplicate of this bug. ***
Comment 164 David Edmundson 2016-10-12 14:13:24 UTC
*** Bug 370539 has been marked as a duplicate of this bug. ***
Comment 165 David Edmundson 2016-11-14 14:20:41 UTC
*** Bug 372368 has been marked as a duplicate of this bug. ***
Comment 166 David Edmundson 2016-11-18 09:31:39 UTC
*** Bug 372595 has been marked as a duplicate of this bug. ***
Comment 167 Jan Grulich 2016-11-24 14:16:50 UTC
*** Bug 372303 has been marked as a duplicate of this bug. ***
Comment 168 David Edmundson 2016-12-11 23:22:41 UTC
*** Bug 373196 has been marked as a duplicate of this bug. ***
Comment 169 David Edmundson 2016-12-13 00:14:41 UTC
*** Bug 373594 has been marked as a duplicate of this bug. ***
Comment 170 David Edmundson 2017-01-05 17:21:52 UTC
*** Bug 374580 has been marked as a duplicate of this bug. ***
Comment 171 Jan Grulich 2017-03-22 11:08:36 UTC
*** Bug 374634 has been marked as a duplicate of this bug. ***
Comment 172 Marco Martin 2017-03-30 13:05:41 UTC
*** Bug 378141 has been marked as a duplicate of this bug. ***
Comment 173 Doug 2017-03-30 16:43:54 UTC
The duplicate bug 374634 was encountered in Plasma Ver. 5.8.3, Frameworks 5.26.0, Qt 5.6.1, kernel 4.4.49-16-default, os 64-bit, and a patched plasma-nm5 5.8.2-1.1.  Continues to be encountered.
Comment 174 David Edmundson 2017-04-10 21:03:33 UTC
*** Bug 378609 has been marked as a duplicate of this bug. ***
Comment 175 David Edmundson 2017-04-24 01:36:33 UTC
*** Bug 379032 has been marked as a duplicate of this bug. ***
Comment 176 David Edmundson 2017-04-30 15:48:20 UTC
*** Bug 379370 has been marked as a duplicate of this bug. ***
Comment 177 David Edmundson 2017-10-10 14:47:48 UTC
*** Bug 385511 has been marked as a duplicate of this bug. ***
Comment 178 David Edmundson 2017-10-23 22:16:43 UTC
*** Bug 386121 has been marked as a duplicate of this bug. ***
Comment 179 Jan Grulich 2018-05-28 09:59:16 UTC
*** Bug 392627 has been marked as a duplicate of this bug. ***