Bug 346777

Summary: Plasma crash when dragging application icon to toolbar
Product: [Plasma] plasmashell Reporter: John Veitch <john>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bhush94, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.2.2   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description John Veitch 2015-04-27 10:41:09 UTC 
Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
Plasma crashed when I attempted to drag an application icon (Konsole) from the K menu to the toolbar (to make a shortcut). The Toolbar widgets were "locked" at the time. It crashed in the same way when I tried again, but when I unlocked the toolbar it worked as expected.

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 0x7f602cf047c0 (LWP 2971))]

Thread 36 (Thread 0x7f6016d10700 (LWP 2974)):
#0  0x00007f6027cd28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f602a23fb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f602a24164f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f60198e3099 in QXcbEventReader::run (this=0x1783e80) at qxcbconnection.cpp:1105
#4  0x00007f6028353b0e in QThreadPrivate::start (arg=0x1783e80) at thread/qthread_unix.cpp:337
#5  0x00007f60275596aa in start_thread (arg=0x7f6016d10700) at pthread_create.c:333
#6  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 35 (Thread 0x7f600ffff700 (LWP 2990)):
#0  0x00007f60243dbeec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243de7ef in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243dee60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f60040008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f600fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6028353b0e in QThreadPrivate::start (arg=0x1874010) at thread/qthread_unix.cpp:337
#9  0x00007f60275596aa in start_thread (arg=0x7f600ffff700) at pthread_create.c:333
#10 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7f600155e700 (LWP 3015)):
#0  0x00007f6024423789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243dea16 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243def20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5ffc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f600155dde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6028353b0e in QThreadPrivate::start (arg=0x1ae13e0) at thread/qthread_unix.cpp:337
#9  0x00007f60275596aa in start_thread (arg=0x7f600155e700) at pthread_create.c:333
#10 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7f5ffb5a1700 (LWP 3028)):
#0  0x00007f6027cd28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f60243deebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5ff40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5ffb5a0de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x1cc9020) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5ffb5a1700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7f5ffa570700 (LWP 3029)):
#0  0x00007f602834b9ca in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x1f40468: 0x1) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetAcquire<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, _q_value=@0x1f40468: 0x1) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:166
#2  testAndSetAcquire (currentValue=<synthetic pointer>, newValue=0x1, expectedValue=0x0, this=0x1f40468, this@entry=0x1) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:270
#3  fastTryLock (current=<synthetic pointer>, this=0x1f40468, this@entry=0x1) at thread/qmutex.h:82
#4  QMutex::lock (this=this@entry=0x1f40468) at thread/qmutex.cpp:212
#5  0x00007f60285ea1db in QMutexLocker (m=0x1f40468, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#6  canWaitLocked (this=0x1f40440) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:243
#7  postEventSourcePrepare (s=0x7f5fec0012d0, timeout=0x7f5ffa56fc14) at kernel/qeventdispatcher_glib.cpp:254
#8  0x00007f60243de3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f60243dede8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5fec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#12 0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5ffa56fde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#13 0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#14 0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f6028353b0e in QThreadPrivate::start (arg=0x1f4bf40) at thread/qthread_unix.cpp:337
#16 0x00007f60275596aa in start_thread (arg=0x7f5ffa570700) at pthread_create.c:333
#17 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7f5ff946f700 (LWP 3030)):
#0  0x00007f60243ee3e2 in g_poll () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243deebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5ff00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5ff946ede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x2063d10) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5ff946f700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7f5febfff700 (LWP 3031)):
#0  0x00007f6024423789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243defb8 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5fe40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5febffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f6028353b0e in QThreadPrivate::start (arg=0x215ca40) at thread/qthread_unix.cpp:337
#7  0x00007f60275596aa in start_thread (arg=0x7f5febfff700) at pthread_create.c:333
#8  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7f5feaffe700 (LWP 3032)):
#0  0x00007f6024423789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243de409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243dede8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5fdc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5feaffdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6028353b0e in QThreadPrivate::start (arg=0x2248750) at thread/qthread_unix.cpp:337
#9  0x00007f60275596aa in start_thread (arg=0x7f5feaffe700) at pthread_create.c:333
#10 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7f5fe9ffd700 (LWP 3033)):
#0  0x00007f6027cd28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f60243deebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5fe00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5fe9ffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x2323f20) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5fe9ffd700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7f5fe8ffc700 (LWP 3034)):
#0  0x00007f60243de351 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243dede8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5fd40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5fe8ffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x2427b50) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5fe8ffc700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7f5fdb7ff700 (LWP 3035)):
#0  0x00007f60285e9fb1 in timerSourcePrepare (source=0x7f5fd0001340, timeout=0x7f5fdb7fec14) at kernel/qeventdispatcher_glib.cpp:148
#1  0x00007f60243de3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243dede8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5fd00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5fdb7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6028353b0e in QThreadPrivate::start (arg=0x250b990) at thread/qthread_unix.cpp:337
#9  0x00007f60275596aa in start_thread (arg=0x7f5fdb7ff700) at pthread_create.c:333
#10 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f5fda5f6700 (LWP 3036)):
#0  QThreadData::current (createIfNecessary=createIfNecessary@entry=true) at thread/qthread_unix.cpp:231
#1  0x00007f60285ea591 in postEventSourcePrepare (timeout=0x0, s=0x7f5fc80012d0) at kernel/qeventdispatcher_glib.cpp:247
#2  postEventSourceCheck (source=0x7f5fc80012d0) at kernel/qeventdispatcher_glib.cpp:264
#3  0x00007f60243de8c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60243dee60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5fc80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5fda5f5de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f6028353b0e in QThreadPrivate::start (arg=0x25fb050) at thread/qthread_unix.cpp:337
#11 0x00007f60275596aa in start_thread (arg=0x7f5fda5f6700) at pthread_create.c:333
#12 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f5fd9505700 (LWP 3037)):
#0  0x00007f6027cd28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f60243deebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5fcc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5fd9504de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x26f6760) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5fd9505700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f5fc7fff700 (LWP 3038)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f602c05d644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f602c05d689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f60275596aa in start_thread (arg=0x7f5fc7fff700) at pthread_create.c:333
#4  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f5f477fe700 (LWP 3039)):
#0  0x00007f6027cd28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f60243deebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f477fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x2801ab0) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5f477fe700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f5f46066700 (LWP 3044)):
#0  0x00007f602755fbdf in __GI___pthread_getspecific (key=5) at pthread_getspecific.c:32
#1  0x00007f6024405e00 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defbd in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f380008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f46065de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x298c2f0) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5f46066700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f5f3ffff700 (LWP 3046)):
#0  0x00007f6027cd28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f60243deebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f3fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x2af9c10) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5f3ffff700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f5f3effe700 (LWP 3047)):
#0  0x00007f60244237a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243de6f9 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243dee37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f2c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f3effdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6028353b0e in QThreadPrivate::start (arg=0x2c63790) at thread/qthread_unix.cpp:337
#9  0x00007f60275596aa in start_thread (arg=0x7f5f3effe700) at pthread_create.c:333
#10 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f5f3dffd700 (LWP 3048)):
#0  0x00007f60285eac6e in QEventDispatcherGlib::processEvents (this=0x7f5f300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#1  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f3dffcd90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#2  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#3  0x00007f602cbc6b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f6028353b0e in QThreadPrivate::start (arg=0x2d8ad20) at thread/qthread_unix.cpp:337
#5  0x00007f60275596aa in start_thread (arg=0x7f5f3dffd700) at pthread_create.c:333
#6  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f5f3d413700 (LWP 3051)):
#0  0x00007f60285ea0c0 in size (this=0x7f5f24003060) at ../../include/QtCore/../../src/corelib/tools/qlist.h:92
#1  count (this=0x7f5f24003060) at ../../include/QtCore/../../src/corelib/tools/qlist.h:290
#2  socketNotifierSourceCheck (source=0x7f5f24003000) at kernel/qeventdispatcher_glib.cpp:74
#3  0x00007f60243de8c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60243dee60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f3d412d90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f602cbc6b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f6028353b0e in QThreadPrivate::start (arg=0x2988750) at thread/qthread_unix.cpp:337
#11 0x00007f60275596aa in start_thread (arg=0x7f5f3d413700) at pthread_create.c:333
#12 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f5f3c829700 (LWP 3054)):
#0  0x00007f60243de4e8 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243dede8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f3c828de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x29e5610) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5f3c829700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f5f20969700 (LWP 3118)):
#0  0x00007f6027cd28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f60243deebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f1c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f20968de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x174fe40) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5f20969700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f5f1b7ff700 (LWP 3119)):
#0  0x00007f6027cd28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f60243deebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f1b7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x36823f0) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5f1b7ff700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f5f1a75e700 (LWP 3120)):
#0  0x00007f60243defd6 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f0c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#2  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f1a75dde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#3  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#4  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#5  0x00007f6028353b0e in QThreadPrivate::start (arg=0x3757190) at thread/qthread_unix.cpp:337
#6  0x00007f60275596aa in start_thread (arg=0x7f5f1a75e700) at pthread_create.c:333
#7  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f5f1965d700 (LWP 3121)):
#0  0x00007f6027cd28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f60243deebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f1965cde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x3832f20) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5f1965d700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f5f0bfff700 (LWP 3123)):
#0  __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:134
#1  0x00007f6028409cb6 in qt_clock_gettime (ts=0x7f5f0bffeb40, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#2  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:161
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:170
#4  0x00007f60285e8639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f5f04002ad0) at kernel/qtimerinfo_unix.cpp:84
#5  0x00007f60285e8ba5 in QTimerInfoList::timerWait (this=0x7f5f04002ad0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#6  0x00007f60285ea03e in timerSourcePrepareHelper (timeout=0x7f5f0bffec14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#7  timerSourcePrepare (source=<optimized out>, timeout=0x7f5f0bffec14) at kernel/qeventdispatcher_glib.cpp:160
#8  0x00007f60243de3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f60243dede8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#12 0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f0bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#13 0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#14 0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#15 0x00007f6028353b0e in QThreadPrivate::start (arg=0x3932550) at thread/qthread_unix.cpp:337
#16 0x00007f60275596aa in start_thread (arg=0x7f5f0bfff700) at pthread_create.c:333
#17 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f5f0affe700 (LWP 3124)):
#0  0x00007f6027cd28dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f60243deebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5efc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f0affdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f6028353b0e in QThreadPrivate::start (arg=0x3a3ca50) at thread/qthread_unix.cpp:337
#8  0x00007f60275596aa in start_thread (arg=0x7f5f0affe700) at pthread_create.c:333
#9  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f5f09ffd700 (LWP 3125)):
#0  0x00007f6024423789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243de641 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243dee37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5f000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5f09ffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6028353b0e in QThreadPrivate::start (arg=0x3b24290) at thread/qthread_unix.cpp:337
#9  0x00007f60275596aa in start_thread (arg=0x7f5f09ffd700) at pthread_create.c:333
#10 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f5f08ffc700 (LWP 3132)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6028354c6b in wait (time=18446744073709551615, this=0x3573730) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x35733d0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f602cc38fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f602cc393a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f6028353b0e in QThreadPrivate::start (arg=0x3573350) at thread/qthread_unix.cpp:337
#6  0x00007f60275596aa in start_thread (arg=0x7f5f08ffc700) at pthread_create.c:333
#7  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f5ef9ffe700 (LWP 3136)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6028354c6b in wait (time=18446744073709551615, this=0x3d8e440) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3d47960, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f602cc38fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f602cc393a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f6028353b0e in QThreadPrivate::start (arg=0x3d478e0) at thread/qthread_unix.cpp:337
#6  0x00007f60275596aa in start_thread (arg=0x7f5ef9ffe700) at pthread_create.c:333
#7  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f5eefbff700 (LWP 3137)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6028354c6b in wait (time=18446744073709551615, this=0x3ec70f0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3ec6720, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f602cc38fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f602cc393a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f6028353b0e in QThreadPrivate::start (arg=0x3ec66a0) at thread/qthread_unix.cpp:337
#6  0x00007f60275596aa in start_thread (arg=0x7f5eefbff700) at pthread_create.c:333
#7  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f5ee67a2700 (LWP 3157)):
#0  0x00007f6024423789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243de409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243dede8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5ee00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5ee67a1dc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f5eecb4ccf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007f6028353b0e in QThreadPrivate::start (arg=0x4529a40) at thread/qthread_unix.cpp:337
#9  0x00007f60275596aa in start_thread (arg=0x7f5ee67a2700) at pthread_create.c:333
#10 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f5ee598f700 (LWP 3159)):
#0  0x00007f60243dbeda in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f60243de39b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f60243dede8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f60285eac6c in QEventDispatcherGlib::processEvents (this=0x7f5ed80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7f5ee598ede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f602834eb44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f602a0dcf65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f6028353b0e in QThreadPrivate::start (arg=0x4549d90) at thread/qthread_unix.cpp:337
#9  0x00007f60275596aa in start_thread (arg=0x7f5ee598f700) at pthread_create.c:333
#10 0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f5ede282700 (LWP 3255)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6028354c6b in wait (time=18446744073709551615, this=0x4d45030) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4d528e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f602cc38fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f602cc393a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f6028353b0e in QThreadPrivate::start (arg=0x4d52860) at thread/qthread_unix.cpp:337
#6  0x00007f60275596aa in start_thread (arg=0x7f5ede282700) at pthread_create.c:333
#7  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f5edd601700 (LWP 3346)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6028354c6b in wait (time=18446744073709551615, this=0x4c55ca0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x45842c0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007f602cc38fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007f602cc393a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f6028353b0e in QThreadPrivate::start (arg=0x4584240) at thread/qthread_unix.cpp:337
#6  0x00007f60275596aa in start_thread (arg=0x7f5edd601700) at pthread_create.c:333
#7  0x00007f6027cddeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f602cf047c0 (LWP 2971)):
[KCrash Handler]
#6  lowerBound (akey=<optimized out>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qmap.h:131
#7  findNode (akey=<synthetic pointer>, this=0x7f602a222b50 <vtable for QV4::PersistentValuePrivate+16>) at ../../include/QtCore/../../src/corelib/tools/qmap.h:287
#8  constFind (akey=<synthetic pointer>, this=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qmap.h:827
#9  QDrag::dragCursor (this=<optimized out>, action=action@entry=Qt::IgnoreAction) at kernel/qdrag.cpp:337
#10 0x00007f60288d30d0 in QBasicDrag::updateCursor (this=0x17a5e60, action=action@entry=Qt::IgnoreAction) at kernel/qsimpledrag.cpp:259
#11 0x00007f60198eb1b7 in QXcbDrag::handle_xdnd_status (this=0x17a5e60, event=0x7ffcb84e26f0) at qxcbdrag.cpp:830
#12 0x00007f60198eb735 in QXcbDrag::handle_xdnd_position (this=0x17a5e60, w=<optimized out>, e=<optimized out>) at qxcbdrag.cpp:777
#13 0x00007f60198edb17 in QXcbDrag::move (this=0x17a5e60, me=0x320001a) at qxcbdrag.cpp:474
#14 0x00007f60288d2ee9 in QBasicDrag::eventFilter (this=0x17a5e60, o=<optimized out>, e=<optimized out>) at kernel/qsimpledrag.cpp:142
#15 0x00007f60285918e3 in QCoreApplicationPrivate::sendThroughApplicationEventFilters (this=this@entry=0x17581b0, receiver=receiver@entry=0x1ad58a0, event=event@entry=0x7ffcb84e2b60) at kernel/qcoreapplication.cpp:1012
#16 0x00007f6028e9bab8 in QApplicationPrivate::notify_helper (this=0x17581b0, receiver=0x1ad58a0, e=0x7ffcb84e2b60) at kernel/qapplication.cpp:3695
#17 0x00007f6028ea1000 in QApplication::notify (this=0x7ffcb84e3db0, receiver=0x1ad58a0, e=0x7ffcb84e2b60) at kernel/qapplication.cpp:3503
#18 0x00007f6028591c2b in QCoreApplication::notifyInternal (this=0x7ffcb84e3db0, receiver=0x1ad58a0, event=0x7ffcb84e2b60) at kernel/qcoreapplication.cpp:935
#19 0x00007f60288def82 in sendSpontaneousEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#20 QGuiApplicationPrivate::processMouseEvent (e=0x57505c0) at kernel/qguiapplication.cpp:1774
#21 0x00007f60288e0b45 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x57505c0) at kernel/qguiapplication.cpp:1576
#22 0x00007f60288c534f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#23 0x00007f601990d590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#24 0x00007f60243dec3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f60243def20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f60285eac57 in QEventDispatcherGlib::processEvents (this=0x17b5890, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#28 0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x1783e60, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#29 0x00007f60288d3262 in QBasicDrag::drag (this=0x17a5e60, o=<optimized out>) at kernel/qsimpledrag.cpp:177
#30 0x00007f60288ebb69 in QDragManager::drag (this=0x4875fd0, o=o@entry=0x556d030) at kernel/qdnd.cpp:135
#31 0x00007f60288eaed7 in QDrag::exec (this=0x556d030, supportedActions=..., defaultDropAction=<optimized out>) at kernel/qdrag.cpp:274
#32 0x00007f5f465f2028 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/draganddrop/libdraganddropplugin.so
#33 0x00007f5f465f27a3 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/draganddrop/libdraganddropplugin.so
#34 0x00007f5f465f282c in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/draganddrop/libdraganddropplugin.so
#35 0x00007f602cc67900 in QQuickWindowPrivate::sendFilteredMouseEvent(QQuickItem*, QQuickItem*, QEvent*, QSet<QQuickItem*>*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#36 0x00007f602cc68084 in QQuickWindow::sendEvent(QQuickItem*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#37 0x00007f602cc68652 in QQuickWindowPrivate::deliverMouseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#38 0x00007f602cc6e780 in QQuickWindow::mouseMoveEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#39 0x00007f60288e77b5 in QWindow::event (this=0x458afa0, ev=<optimized out>) at kernel/qwindow.cpp:2051
#40 0x00007f602cc6fdd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#41 0x00007f602c193f9b in PlasmaQuick::Dialog::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#42 0x00007f6028e9bb2c in QApplicationPrivate::notify_helper (this=0x17581b0, receiver=0x458afa0, e=0x7ffcb84e3890) at kernel/qapplication.cpp:3720
#43 0x00007f6028ea1000 in QApplication::notify (this=0x7ffcb84e3db0, receiver=0x458afa0, e=0x7ffcb84e3890) at kernel/qapplication.cpp:3503
#44 0x00007f6028591c2b in QCoreApplication::notifyInternal (this=0x7ffcb84e3db0, receiver=0x458afa0, event=0x7ffcb84e3890) at kernel/qcoreapplication.cpp:935
#45 0x00007f60288def82 in sendSpontaneousEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#46 QGuiApplicationPrivate::processMouseEvent (e=0x55f1480) at kernel/qguiapplication.cpp:1774
#47 0x00007f60288e0b45 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x55f1480) at kernel/qguiapplication.cpp:1576
#48 0x00007f60288c534f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#49 0x00007f601990d590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#50 0x00007f60243dec3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007f60243def20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007f60243defcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007f60285eac57 in QEventDispatcherGlib::processEvents (this=0x17b5890, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#54 0x00007f602858f3e2 in QEventLoop::exec (this=this@entry=0x7ffcb84e3c30, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#55 0x00007f602859702c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#56 0x000000000042fd9b in main ()

Reported using DrKonqi
Comment 1 David Edmundson 2015-04-27 10:47:58 UTC 
Thanks

*** This bug has been marked as a duplicate of bug 346294 ***