Bug 351584

Summary: Random crashes while using chromium and Libreoffice, with no CMOS
Product: [Plasma] plasmashell Reporter: r.acisclo
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bhush94, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.3.2   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description r.acisclo 2015-08-21 20:12:27 UTC 
Application: plasmashell (5.3.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-27-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
Using Chromium with pepper version of flashplayer and libreoffice.
- Unusual behavior I noticed:
None. Until plasma crashes.
It happens SEVERAL times, at random.
- Custom settings of the application:
I use a oxygen theme for plasma 5, does it matter?
Plus, my CMOS is dead and i didn't replaced it, but i don't think it matters.

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 0x7fce61bf27c0 (LWP 1299))]

Thread 35 (Thread 0x7fce4b8c2700 (LWP 1302)):
#0  0x00007fce5c75a8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fce5eeedb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fce5eeef64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fce4e451099 in QXcbEventReader::run (this=0x23ed8d0) at qxcbconnection.cpp:1105
#4  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x23ed8d0) at thread/qthread_unix.cpp:337
#5  0x00007fce5bfe16aa in start_thread (arg=0x7fce4b8c2700) at pthread_create.c:333
#6  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 34 (Thread 0x7fce492d9700 (LWP 1335)):
#0  0x00007fce58ec0780 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7b73e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7be60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce3c0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce492d8de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x251f540) at thread/qthread_unix.cpp:337
#9  0x00007fce5bfe16aa in start_thread (arg=0x7fce492d9700) at pthread_create.c:333
#10 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 33 (Thread 0x7fce3a6b3700 (LWP 1336)):
#0  0x00007fce5d0720c0 in size (this=0x7fce34002c60) at ../../include/QtCore/../../src/corelib/tools/qlist.h:92
#1  count (this=0x7fce34002c60) at ../../include/QtCore/../../src/corelib/tools/qlist.h:290
#2  socketNotifierSourceCheck (source=0x7fce34002c00) at kernel/qeventdispatcher_glib.cpp:74
#3  0x00007fce58e7b8c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce58e7be60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce3a6b2de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x26b2330) at thread/qthread_unix.cpp:337
#11 0x00007fce5bfe16aa in start_thread (arg=0x7fce3a6b3700) at pthread_create.c:333
#12 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 32 (Thread 0x7fce33fff700 (LWP 1341)):
#0  0x00007fce5c75649d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fce5544af45 in ?? () from /usr/lib/nvidia-340-updates/tls/libnvidia-tls.so.340.76
#2  0x00007fce58ebf2f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7b96c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce58e7be60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce33ffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x2b363c0) at thread/qthread_unix.cpp:337
#11 0x00007fce5bfe16aa in start_thread (arg=0x7fce33fff700) at pthread_create.c:333
#12 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 31 (Thread 0x7fce32fde700 (LWP 1343)):
#0  0x00007fce58ec0789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7b2d7 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7bde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce32fddde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x2c472e0) at thread/qthread_unix.cpp:337
#9  0x00007fce5bfe16aa in start_thread (arg=0x7fce32fde700) at pthread_create.c:333
#10 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 30 (Thread 0x7fce31edd700 (LWP 1344)):
#0  0x00007fce5c75a8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fce58e7bebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce31edcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x2d304c0) at thread/qthread_unix.cpp:337
#8  0x00007fce5bfe16aa in start_thread (arg=0x7fce31edd700) at pthread_create.c:333
#9  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 29 (Thread 0x7fce30ddc700 (LWP 1345)):
#0  0x00007fce58ec07a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7b8b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7be60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce30ddbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x2e38030) at thread/qthread_unix.cpp:337
#9  0x00007fce5bfe16aa in start_thread (arg=0x7fce30ddc700) at pthread_create.c:333
#10 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 28 (Thread 0x7fce1f5e0700 (LWP 1348)):
#0  0x00007fce58ec0789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7af38 in g_main_context_release () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7be76 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce1f5dfde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x2f50500) at thread/qthread_unix.cpp:337
#9  0x00007fce5bfe16aa in start_thread (arg=0x7fce1f5e0700) at pthread_create.c:333
#10 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 27 (Thread 0x7fce1e387700 (LWP 1349)):
#0  timerSourcePrepareHelper (timeout=0x7fce1e386c14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:130
#1  timerSourcePrepare (source=<optimized out>, timeout=0x7fce1e386c14) at kernel/qeventdispatcher_glib.cpp:160
#2  0x00007fce58e7b3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7bde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce0c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce1e386de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x30525e0) at thread/qthread_unix.cpp:337
#10 0x00007fce5bfe16aa in start_thread (arg=0x7fce1e387700) at pthread_create.c:333
#11 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 26 (Thread 0x7fce1d286700 (LWP 1350)):
#0  0x00007fce5cdd3e0f in testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x31528d8: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x31528d8: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x31528d8) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x31528d8) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x31528d8) at thread/qmutex.cpp:264
#5  0x00007fce5d0721ed 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=0x31528b0) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (s=0x7fce100012d0, timeout=0x7fce1d285c14) at kernel/qeventdispatcher_glib.cpp:254
#9  0x00007fce58e7b3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fce58e7bde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce1d285de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x3141ce0) at thread/qthread_unix.cpp:337
#17 0x00007fce5bfe16aa in start_thread (arg=0x7fce1d286700) at pthread_create.c:333
#18 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7fce0bfff700 (LWP 1351)):
#0  0x00007fce5d070b47 in QTimerInfoList::repairTimersIfNeeded (this=0x7fce040013a0) at kernel/qtimerinfo_unix.cpp:160
#1  0x00007fce5d070bb3 in QTimerInfoList::timerWait (this=0x7fce040013a0, tm=...) at kernel/qtimerinfo_unix.cpp:380
#2  0x00007fce5d07203e in timerSourcePrepareHelper (timeout=0x7fce0bffec14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#3  timerSourcePrepare (source=<optimized out>, timeout=0x7fce0bffec14) at kernel/qeventdispatcher_glib.cpp:160
#4  0x00007fce58e7b3fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fce58e7bde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#8  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce0bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#9  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#10 0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x32423b0) at thread/qthread_unix.cpp:337
#12 0x00007fce5bfe16aa in start_thread (arg=0x7fce0bfff700) at pthread_create.c:333
#13 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7fce0affe700 (LWP 1353)):
#0  0x00007fce5c75a8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fce58e7bebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fcdfc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce0affdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x3333540) at thread/qthread_unix.cpp:337
#8  0x00007fce5bfe16aa in start_thread (arg=0x7fce0affe700) at pthread_create.c:333
#9  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7fce09f7d700 (LWP 1354)):
#0  0x00007fce58e78ec7 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7b7ef in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7be60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fce000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fce09f7cde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x343c3b0) at thread/qthread_unix.cpp:337
#9  0x00007fce5bfe16aa in start_thread (arg=0x7fce09f7d700) at pthread_create.c:333
#10 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7fce08e74700 (LWP 1368)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce60d21644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fce60d21689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fce5bfe16aa in start_thread (arg=0x7fce08e74700) at pthread_create.c:333
#4  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7fcd7bfff700 (LWP 1369)):
#0  0x00007fce58ec07a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7b490 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7bde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fcd740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fcd7bffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x35a1f20) at thread/qthread_unix.cpp:337
#9  0x00007fce5bfe16aa in start_thread (arg=0x7fcd7bfff700) at pthread_create.c:333
#10 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7fcd78918700 (LWP 1395)):
#0  0x00007fce58ec07a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7b6f9 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7be37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fcd6c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fcd78917d90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fce61896b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x31527e0) at thread/qthread_unix.cpp:337
#9  0x00007fce5bfe16aa in start_thread (arg=0x7fcd78918700) at pthread_create.c:333
#10 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7fcd73a80700 (LWP 1398)):
#0  0x00007fce58e78fb0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7b84a in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7be60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fcd680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fcd73a7fde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x393ae10) at thread/qthread_unix.cpp:337
#9  0x00007fce5bfe16aa in start_thread (arg=0x7fcd73a80700) at pthread_create.c:333
#10 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7fcd669d6700 (LWP 1495)):
#0  0x00007fce58ec07a0 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7bfd6 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fcd600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fcd669d5de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x4665920) at thread/qthread_unix.cpp:337
#7  0x00007fce5bfe16aa in start_thread (arg=0x7fcd669d6700) at pthread_create.c:333
#8  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7fcd5ffff700 (LWP 1514)):
#0  0x00007fce58e78f29 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7b39b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7bde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fcd580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fcd5fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x448dd00) at thread/qthread_unix.cpp:337
#9  0x00007fce5bfe16aa in start_thread (arg=0x7fcd5ffff700) at pthread_create.c:333
#10 0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7fcd5effe700 (LWP 1541)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x48869d0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x430fe20, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x430fda0) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd5effe700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7fcd5d07d700 (LWP 1553)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x44ce610) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2bd4290, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x2bd4210) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd5d07d700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7fcd4ffff700 (LWP 1561)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x4cc2aa0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4cbe130, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x4cbe0b0) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd4ffff700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7fcd4d14e700 (LWP 1572)):
#0  0x00007fce5c75a8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fce58e7bebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fcd400008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fcd4d14ddc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fcd4f3b6cf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x30426b0) at thread/qthread_unix.cpp:337
#8  0x00007fce5bfe16aa in start_thread (arg=0x7fcd4d14e700) at pthread_create.c:333
#9  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7fcd45ec5700 (LWP 1592)):
#0  0x00007fce58ec0789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fce58e7bea2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fce5d072c6c in QEventDispatcherGlib::processEvents (this=0x7fcd340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7fcd45ec4de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fce5cdd6b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fce5eb65f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x27844d0) at thread/qthread_unix.cpp:337
#8  0x00007fce5bfe16aa in start_thread (arg=0x7fcd45ec5700) at pthread_create.c:333
#9  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fcd39282700 (LWP 1778)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x5349440) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5865d10, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x5865c90) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd39282700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fcd2ffff700 (LWP 1823)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x5c967e0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5bf5910, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x5bf5890) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd2ffff700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fcd46859700 (LWP 2093)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x436cf60) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5316560, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x53164e0) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd46859700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fcd2f1f8700 (LWP 2094)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x5c424e0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5b7a130, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x5b7a0b0) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd2f1f8700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fcd2cc76700 (LWP 2550)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x524de80) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2774020, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x2773fa0) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd2cc76700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fcd1ffff700 (LWP 2642)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x69226a0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x68f3c70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x68f3bf0) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd1ffff700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fcd1f7fe700 (LWP 2729)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x6b80fd0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x6b4c0a0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x6b4c020) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd1f7fe700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fcd1effd700 (LWP 2730)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x6fafa00) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x6c3af80, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x6c3af00) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd1effd700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fcd1e17c700 (LWP 2732)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x703b7f0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x54008f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x5400870) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd1e17c700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fcd1d245700 (LWP 3430)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fce5cddcc6b in wait (time=18446744073709551615, this=0x23fb8e0) at thread/qwaitcondition_unix.cpp:128
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x6bae0a0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:200
#3  0x00007fce61908fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fce619093a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fce5cddbb0e in QThreadPrivate::start (arg=0x6bae020) at thread/qthread_unix.cpp:337
#6  0x00007fce5bfe16aa in start_thread (arg=0x7fcd1d245700) at pthread_create.c:333
#7  0x00007fce5c765eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fce61bf27c0 (LWP 1299)):
[KCrash Handler]
#6  0x00007fce5e93ecd9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fce5ebac148 in QQmlDelegateModel::_q_itemsChanged(int, int, QVector<int> const&) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fce5ebd3ccc in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fce5ebd440f in QQmlDelegateModel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fce5d04aae2 in QMetaObject::activate (sender=0x418c030, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffeb92f62c0) at kernel/qobject.cpp:3731
#11 0x00007fce5d04b057 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fce5d273a40 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffeb92f62c0) at kernel/qobject.cpp:3582
#12 0x00007fce5d0c813c in QAbstractItemModel::dataChanged (this=<optimized out>, _t1=..., _t2=..., _t3=...) at .moc/moc_qabstractitemmodel.cpp:393
#13 0x00007fcd7261d154 in TaskManager::TasksModelPrivate::itemChanged (this=0x414b5e0, changes=...) at ../../libtaskmanager/tasksmodel.cpp:521
#14 0x00007fcd7261db47 in TaskManager::TasksModel::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=0x7ffeb92f64b0) at ./moc_tasksmodel.cpp:213
#15 0x00007fce5d04a9c9 in QMetaObject::activate (sender=0x5b65510, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffeb92f64b0) at kernel/qobject.cpp:3716
#16 0x00007fce5d04b057 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fcd728429e0 <TaskManager::AbstractGroupableItem::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffeb92f64b0) at kernel/qobject.cpp:3582
#17 0x00007fcd72625ae8 in TaskManager::AbstractGroupableItem::changed (this=<optimized out>, _t1=...) at moc_abstractgroupableitem.cpp:222
#18 0x00007fcd72626f1b in TaskManager::AbstractGroupableItem::qt_static_metacall (_o=0x66b5530, _c=QMetaObject::ReadProperty, _id=118529088, _a=0x0) at moc_abstractgroupableitem.cpp:134
#19 0x00007fce5d04a9c9 in QMetaObject::activate (sender=sender@entry=0x5c85500, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffeb92f6640) at kernel/qobject.cpp:3716
#20 0x00007fce5d04b057 in QMetaObject::activate (sender=sender@entry=0x5c85500, m=m@entry=0x7fcd728426e0 <TaskManager::Task::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffeb92f6640) at kernel/qobject.cpp:3582
#21 0x00007fcd72625cd8 in TaskManager::Task::changed (this=this@entry=0x5c85500, _t1=...) at moc_task.cpp:354
#22 0x00007fcd7260658a in TaskManager::Task::setActive (this=this@entry=0x5c85500, a=a@entry=true) at ../../libtaskmanager/task.cpp:178
#23 0x00007fcd7261913c in TaskManager::TaskManager::activeWindowChanged (this=0x7fcd72843f90 <TaskManager::(anonymous namespace)::Q_QGS_privateTaskManagerSelf::innerFunction()::holder>, w=<optimized out>) at ../../libtaskmanager/taskmanager.cpp:412
#24 0x00007fcd7261b4b9 in TaskManager::TaskManager::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./moc_taskmanager.cpp:175
#25 0x00007fce5d04a9c9 in QMetaObject::activate (sender=0x7fce617959f0 <(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction()::holder>, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffeb92f6830) at kernel/qobject.cpp:3716
#26 0x00007fce5d04b057 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fce61794b40 <KWindowSystem::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffeb92f6830) at kernel/qobject.cpp:3582
#27 0x00007fce615842e2 in KWindowSystem::activeWindowChanged (this=<optimized out>, _t1=115343361) at moc_kwindowsystem.cpp:302
#28 0x00007fce6156cfb6 in NETEventFilter::nativeEventFilter (this=0x3a6da30, ev=0x7fce44004160) at ../../src/kwindowsystem_x11.cpp:208
#29 0x00007fce5d016510 in QAbstractEventDispatcher::filterNativeEvent (this=this@entry=0x2413c10, eventType=..., message=message@entry=0x7fce44004160, result=result@entry=0x7ffeb92f6998) at kernel/qabstracteventdispatcher.cpp:460
#30 0x00007fce4e45002d in QXcbConnection::handleXcbEvent (this=this@entry=0x23de750, event=event@entry=0x7fce44004160) at qxcbconnection.cpp:863
#31 0x00007fce4e4514bb in QXcbConnection::processXcbEvents (this=0x23de750) at qxcbconnection.cpp:1303
#32 0x00007fce5d04b73a in QObject::event (this=0x23de750, e=<optimized out>) at kernel/qobject.cpp:1245
#33 0x00007fce5d923b2c in QApplicationPrivate::notify_helper (this=0x23c1870, receiver=0x23de750, e=0x7fce440046d0) at kernel/qapplication.cpp:3720
#34 0x00007fce5d929000 in QApplication::notify (this=0x7ffeb92f7210, receiver=0x23de750, e=0x7fce440046d0) at kernel/qapplication.cpp:3503
#35 0x00007fce5d019c2b in QCoreApplication::notifyInternal (this=0x7ffeb92f7210, receiver=0x23de750, event=event@entry=0x7fce440046d0) at kernel/qcoreapplication.cpp:935
#36 0x00007fce5d01bc9b in sendEvent (event=0x7fce440046d0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#37 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x23b6d70) at kernel/qcoreapplication.cpp:1552
#38 0x00007fce5d01c298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#39 0x00007fce5d072843 in postEventSourceDispatch (s=0x242b2c0) at kernel/qeventdispatcher_glib.cpp:271
#40 0x00007fce58e7bc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007fce58e7bf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007fce58e7bfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007fce5d072c57 in QEventDispatcherGlib::processEvents (this=0x2413c10, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#44 0x00007fce5d0173e2 in QEventLoop::exec (this=this@entry=0x7ffeb92f7090, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#45 0x00007fce5d01f02c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#46 0x00007fce5d35e31c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#47 0x00007fce5d91f7a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#48 0x0000000000430253 in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:154

Possible duplicates by query: bug 351554, bug 351247, bug 350797, bug 350618, bug 350537.

Reported using DrKonqi
Comment 1 David Edmundson 2015-08-22 12:34:19 UTC 
Thanks.

Crash is the task manager doing some grouping. We think newer Qt fixes it

*** This bug has been marked as a duplicate of bug 342763 ***