Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-11-generic x86_64
Distribution: Ubuntu Vivid Vervet (development branch)

-- Information about the crash:
After every login plasmashell crashes. For me it seems only to occur with a two external monitor setup connected to my docking station.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fecc418c7c0 (LWP 2365))]

Thread 4 (Thread 0x7fecafd9f700 (LWP 2373)):
#0  0x00007fecbef3e8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fecc14abb72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fecc14ad64f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fecb20e6099 in QXcbEventReader::run (this=0x2497320) at qxcbconnection.cpp:1105
#4  0x00007fecbf5bfb0e in QThreadPrivate::start (arg=0x2497320) at thread/qthread_unix.cpp:337
#5  0x00007fecbe7c56aa in start_thread (arg=0x7fecafd9f700) at pthread_create.c:333
#6  0x00007fecbef49eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fecad29c700 (LWP 3584)):
#0  0x00007ffdfffeaad0 in clock_gettime ()
#1  0x00007fecbef5838d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007fecbf675cb6 in qt_clock_gettime (ts=0x7fecad29bb40, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:161
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:170
#5  0x00007fecbf854639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7feca4002cd0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007fecbf854ba5 in QTimerInfoList::timerWait (this=0x7feca4002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007fecbf85603e in timerSourcePrepareHelper (timeout=0x7fecad29bc14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7fecad29bc14) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007fecbb6513fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fecbb651de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fecbb651fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fecbf856c6c in QEventDispatcherGlib::processEvents (this=0x7feca40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007fecbf7fb3e2 in QEventLoop::exec (this=this@entry=0x7fecad29bde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007fecbf5bab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007fecc1348f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007fecbf5bfb0e in QThreadPrivate::start (arg=0x2566060) at thread/qthread_unix.cpp:337
#17 0x00007fecbe7c56aa in start_thread (arg=0x7fecad29c700) at pthread_create.c:333
#18 0x00007fecbef49eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fec99e85700 (LWP 3586)):
#0  0x00007fecbb64ef2f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fecbb65139b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fecbb651de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fecbb651fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fecbf856c6c in QEventDispatcherGlib::processEvents (this=0x7fec940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007fecbf7fb3e2 in QEventLoop::exec (this=this@entry=0x7fec99e84de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fecbf5bab44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fecc1348f45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fecbf5bfb0e in QThreadPrivate::start (arg=0x2e57d40) at thread/qthread_unix.cpp:337
#9  0x00007fecbe7c56aa in start_thread (arg=0x7fec99e85700) at pthread_create.c:333
#10 0x00007fecbef49eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fecc418c7c0 (LWP 2365)):
[KCrash Handler]
#6  0x00007fecbee78267 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007fecbee79eca in __GI_abort () at abort.c:89
#8  0x00007fecbf26e06d in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9  0x00007fecbf26bee6 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007fecbf26bf31 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007fecbf26ca7f in __cxa_pure_virtual () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007fecbfb3796a in QPlatformScreen::physicalSize (this=<optimized out>) at kernel/qplatformscreen.cpp:131
#13 0x00007fecbfb717b2 in QScreen::physicalSize (this=this@entry=0x24984c0) at kernel/qscreen.cpp:245
#14 0x00007fecbfb71869 in QScreen::physicalDotsPerInch (this=0x24984c0) at kernel/qscreen.cpp:168
#15 0x00007fecc3fb0c49 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007fecbf82e9c9 in QMetaObject::activate (sender=sender@entry=0x26dac00, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdfff9c460) at kernel/qobject.cpp:3716
#17 0x00007fecbf82f057 in QMetaObject::activate (sender=sender@entry=0x26dac00, m=m@entry=0x7fecbff96b80 <QWindow::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdfff9c460) at kernel/qobject.cpp:3582
#18 0x00007fecbfb4ed4f in QWindow::screenChanged (this=this@entry=0x26dac00, _t1=_t1@entry=0x2498670) at .moc/moc_qwindow.cpp:626
#19 0x00007fecbfb4f5a5 in QWindowPrivate::emitScreenChangedRecursion (this=this@entry=0x26d8660, newScreen=newScreen@entry=0x2498670) at kernel/qwindow.cpp:366
#20 0x00007fecbfb52cc3 in QWindowPrivate::setTopLevelScreen (this=0x26d8660, newScreen=0x2498670, recreate=<optimized out>) at kernel/qwindow.cpp:387
#21 0x00007fecbfb52e65 in QWindow::screenDestroyed (this=0x26dac00, object=<optimized out>) at kernel/qwindow.cpp:1713
#22 0x00007fecbf82e35a in call (a=0x7ffdfff9c6b0, r=0x26dac00, this=0x26d8950) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#23 QMetaObject::activate (sender=sender@entry=0x24984c0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdfff9c6b0) at kernel/qobject.cpp:3702
#24 0x00007fecbf82f057 in QMetaObject::activate (sender=sender@entry=0x24984c0, m=m@entry=0x7fecbfa50940 <QObject::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffdfff9c6b0) at kernel/qobject.cpp:3582
#25 0x00007fecbf82f0ff in QObject::destroyed (this=this@entry=0x24984c0, _t1=_t1@entry=0x24984c0) at .moc/moc_qobject.cpp:206
#26 0x00007fecbf837a8b in QObject::~QObject (this=0x24984c0, __in_chrg=<optimized out>) at kernel/qobject.cpp:903
#27 0x00007fecbfb71679 in QScreen::~QScreen (this=0x24984c0, __in_chrg=<optimized out>) at kernel/qscreen.cpp:77
#28 0x00007fecbfb37f2a in QPlatformScreen::~QPlatformScreen (this=0x249a250, __in_chrg=<optimized out>) at kernel/qplatformscreen.cpp:57
#29 0x00007fecb20f1769 in QXcbScreen::~QXcbScreen (this=0x249a250, __in_chrg=<optimized out>) at qxcbscreen.cpp:222
#30 0x00007fecb20e45ab in QXcbConnection::updateScreens (this=this@entry=0x248bb70) at qxcbconnection.cpp:286
#31 0x00007fecb20e527d in QXcbConnection::handleXcbEvent (this=this@entry=0x248bb70, event=event@entry=0x7feca8003be0) at qxcbconnection.cpp:961
#32 0x00007fecb20e64bb in QXcbConnection::processXcbEvents (this=0x248bb70) at qxcbconnection.cpp:1303
#33 0x00007fecbf82f73a in QObject::event (this=0x248bb70, e=<optimized out>) at kernel/qobject.cpp:1245
#34 0x00007fecc0107b2c in QApplicationPrivate::notify_helper (this=0x2481420, receiver=0x248bb70, e=0x7feca8003420) at kernel/qapplication.cpp:3720
#35 0x00007fecc010d000 in QApplication::notify (this=0x7ffdfff9d1f0, receiver=0x248bb70, e=0x7feca8003420) at kernel/qapplication.cpp:3503
#36 0x00007fecbf7fdc2b in QCoreApplication::notifyInternal (this=0x7ffdfff9d1f0, receiver=0x248bb70, event=event@entry=0x7feca8003420) at kernel/qcoreapplication.cpp:935
#37 0x00007fecbf7ffc9b in sendEvent (event=0x7feca8003420, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x2476f00) at kernel/qcoreapplication.cpp:1552
#39 0x00007fecbf800298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#40 0x00007fecbf856843 in postEventSourceDispatch (s=0x24c1640) at kernel/qeventdispatcher_glib.cpp:271
#41 0x00007fecbb651c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007fecbb651f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007fecbb651fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007fecbf856c57 in QEventDispatcherGlib::processEvents (this=0x24c2a20, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#45 0x00007fecbf7fb3e2 in QEventLoop::exec (this=this@entry=0x7ffdfff9d070, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#46 0x00007fecbf80302c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#47 0x00007fecbfb4231c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#48 0x00007fecc01037a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#49 0x000000000042fd9b in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:158

Possible duplicates by query: bug 345544, bug 343216.

Reported using DrKonqi