Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 3.13.0-93-generic i686
Distribution: Ubuntu 16.04.1 LTS

-- Information about the crash:
Crashing on reboot after package update

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xaf58f800 (LWP 4746))]

Thread 9 (Thread 0xa20e8b40 (LWP 4764)):
[KCrash Handler]
#7  0xb428a2ac in glGetString () from /usr/lib/nvidia-340/libGL.so.1
#8  0xb55aa046 in QOpenGLContext::makeCurrent (this=0x99da828, surface=0x9a3d198) at kernel/qopenglcontext.cpp:941
#9  0xb6d3118d in QSGRenderThread::run (this=0x99daee0) at scenegraph/qsgthreadedrenderloop.cpp:675
#10 0xb506843b in QThreadPrivate::start (arg=0x99daee0) at thread/qthread_unix.cpp:331
#11 0xb4c3d2c5 in start_thread (arg=0xa20e8b40) at pthread_create.c:333
#12 0xb4d94eee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 8 (Thread 0xa2cd2b40 (LWP 4762)):
#0  0xb7784428 in __kernel_vsyscall ()
#1  0xb4cc6395 in clock_gettime_syscall (id=1, tp=0xa2cd1ed4) at ../sysdeps/unix/sysv/linux/i386/init-first.c:32
#2  0xb4da2142 in __GI___clock_gettime (clock_id=1, tp=0xa2cd1ed4) at ../sysdeps/unix/clock_gettime.c:115
#3  0xb5106338 in qt_clock_gettime (ts=0xa2cd1ed4, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#4  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#5  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#6  0xb5295232 in QTimerInfoList::updateCurrentTime (this=0xa5e0bdcc) at kernel/qtimerinfo_unix.cpp:84
#7  0xb5295754 in QTimerInfoList::timerWait (this=0xa5e0bdcc, tm=...) at kernel/qtimerinfo_unix.cpp:381
#8  0xb5296d19 in timerSourcePrepareHelper (timeout=0xa2cd1fe8, src=0xa5e0bd98) at kernel/qeventdispatcher_glib.cpp:127
#9  timerSourcePrepare (source=0xa5e0bd98, timeout=0xa2cd1fe8) at kernel/qeventdispatcher_glib.cpp:160
#10 0xb44295cb in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb442a014 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#12 0xb442a244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#13 0xb5297964 in QEventDispatcherGlib::processEvents (this=0xa5e0c1d8, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0xb523c7a3 in QEventLoop::processEvents (this=0xa2cd2184, flags=...) at kernel/qeventloop.cpp:128
#15 0xb523cbfa in QEventLoop::exec (this=0xa2cd2184, flags=...) at kernel/qeventloop.cpp:204
#16 0xb5062f1d in QThread::exec (this=0x9993360) at thread/qthread.cpp:503
#17 0xb6cb47a9 in QQuickPixmapReader::run (this=0x9993360) at util/qquickpixmapcache.cpp:817
#18 0xb506843b in QThreadPrivate::start (arg=0x9993360) at thread/qthread_unix.cpp:331
#19 0xb4c3d2c5 in start_thread (arg=0xa2cd2b40) at pthread_create.c:333
#20 0xb4d94eee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 7 (Thread 0xa42a8b40 (LWP 4760)):
#0  0xb7784428 in __kernel_vsyscall ()
#1  0xb4c42a9c in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/pthread_cond_wait.S:187
#2  0xb4da164d in __pthread_cond_wait (cond=0xb76ce8d0, mutex=0xb76ce8b8) at forward.c:149
#3  0xb7596a2c in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5
#4  0xb7596a6c in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5
#5  0xb4c3d2c5 in start_thread (arg=0xa42a8b40) at pthread_create.c:333
#6  0xb4d94eee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 6 (Thread 0xa53e5b40 (LWP 4759)):
#0  0xb447048d in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#1  0xb442a0c3 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#2  0xb442a244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb5297964 in QEventDispatcherGlib::processEvents (this=0x993e1a0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0xb523c7a3 in QEventLoop::processEvents (this=0xa53e51d4, flags=...) at kernel/qeventloop.cpp:128
#5  0xb523cbfa in QEventLoop::exec (this=0xa53e51d4, flags=...) at kernel/qeventloop.cpp:204
#6  0xb5062f1d in QThread::exec (this=0x9947dd0) at thread/qthread.cpp:503
#7  0xb68d4aff in QQmlThreadPrivate::run (this=0x9947dd0) at qml/ftw/qqmlthread.cpp:141
#8  0xb506843b in QThreadPrivate::start (arg=0x9947dd0) at thread/qthread_unix.cpp:331
#9  0xb4c3d2c5 in start_thread (arg=0xa53e5b40) at pthread_create.c:333
#10 0xb4d94eee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 5 (Thread 0xa6754b40 (LWP 4758)):
#0  0xb7784428 in __kernel_vsyscall ()
#1  0xb4d8ad0f in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0xb4438b10 in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb442a10c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb442a244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5297964 in QEventDispatcherGlib::processEvents (this=0xa5e00470, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#6  0xb523c7a3 in QEventLoop::processEvents (this=0xa67541d4, flags=...) at kernel/qeventloop.cpp:128
#7  0xb523cbfa in QEventLoop::exec (this=0xa67541d4, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5062f1d in QThread::exec (this=0x9768000) at thread/qthread.cpp:503
#9  0xb68d4aff in QQmlThreadPrivate::run (this=0x9768000) at qml/ftw/qqmlthread.cpp:141
#10 0xb506843b in QThreadPrivate::start (arg=0x9768000) at thread/qthread_unix.cpp:331
#11 0xb4c3d2c5 in start_thread (arg=0xa6754b40) at pthread_create.c:333
#12 0xb4d94eee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 4 (Thread 0xa9318b40 (LWP 4757)):
#0  0xb7784428 in __kernel_vsyscall ()
#1  0xb4cc6395 in clock_gettime_syscall (id=1, tp=0xa9317f24) at ../sysdeps/unix/sysv/linux/i386/init-first.c:32
#2  0xb4da2142 in __GI___clock_gettime (clock_id=1, tp=0xa9317f24) at ../sysdeps/unix/clock_gettime.c:115
#3  0xb5106338 in qt_clock_gettime (ts=0xa9317f24, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#4  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#5  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#6  0xb5295232 in QTimerInfoList::updateCurrentTime (this=0xa8a0269c) at kernel/qtimerinfo_unix.cpp:84
#7  0xb5295754 in QTimerInfoList::timerWait (this=0xa8a0269c, tm=...) at kernel/qtimerinfo_unix.cpp:381
#8  0xb5296d19 in timerSourcePrepareHelper (timeout=0xa9318038, src=0xa8a02668) at kernel/qeventdispatcher_glib.cpp:127
#9  timerSourcePrepare (source=0xa8a02668, timeout=0xa9318038) at kernel/qeventdispatcher_glib.cpp:160
#10 0xb44295cb in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#11 0xb442a014 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#12 0xb442a244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#13 0xb5297964 in QEventDispatcherGlib::processEvents (this=0xa8a00470, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0xb523c7a3 in QEventLoop::processEvents (this=0xa93181d4, flags=...) at kernel/qeventloop.cpp:128
#15 0xb523cbfa in QEventLoop::exec (this=0xa93181d4, flags=...) at kernel/qeventloop.cpp:204
#16 0xb5062f1d in QThread::exec (this=0x978f930) at thread/qthread.cpp:503
#17 0xb68d4aff in QQmlThreadPrivate::run (this=0x978f930) at qml/ftw/qqmlthread.cpp:141
#18 0xb506843b in QThreadPrivate::start (arg=0x978f930) at thread/qthread_unix.cpp:331
#19 0xb4c3d2c5 in start_thread (arg=0xa9318b40) at pthread_create.c:333
#20 0xb4d94eee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 3 (Thread 0xaa755b40 (LWP 4755)):
#0  0xb7784428 in __kernel_vsyscall ()
#1  0xb4c42a9c in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/pthread_cond_wait.S:187
#2  0xb4da164d in __pthread_cond_wait (cond=0x970f99c, mutex=0x970f984) at forward.c:149
#3  0xae1a080a in ?? () from /usr/lib/i386-linux-gnu/dri/swrast_dri.so
#4  0xae1a0675 in ?? () from /usr/lib/i386-linux-gnu/dri/swrast_dri.so
#5  0xb4c3d2c5 in start_thread (arg=0xaa755b40) at pthread_create.c:333
#6  0xb4d94eee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 2 (Thread 0xaaf56b40 (LWP 4754)):
#0  0xb7784428 in __kernel_vsyscall ()
#1  0xb4c42a9c in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/pthread_cond_wait.S:187
#2  0xb4da164d in __pthread_cond_wait (cond=0x970f8a0, mutex=0x970f888) at forward.c:149
#3  0xae1a080a in ?? () from /usr/lib/i386-linux-gnu/dri/swrast_dri.so
#4  0xae1a0675 in ?? () from /usr/lib/i386-linux-gnu/dri/swrast_dri.so
#5  0xb4c3d2c5 in start_thread (arg=0xaaf56b40) at pthread_create.c:333
#6  0xb4d94eee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114

Thread 1 (Thread 0xaf58f800 (LWP 4746)):
#0  0xb7784428 in __kernel_vsyscall ()
#1  0xb4c42a9c in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/pthread_cond_wait.S:187
#2  0xb4da164d in __pthread_cond_wait (cond=0x99d37a8, mutex=0x99d3790) at forward.c:149
#3  0xb5069613 in QWaitConditionPrivate::wait (time=4294967295, this=0x99d3790) at thread/qwaitcondition_unix.cpp:136
#4  QWaitCondition::wait (this=0x99daf08, mutex=0x99daf04, time=4294967295) at thread/qwaitcondition_unix.cpp:208
#5  0xb6d2d65b in QSGThreadedRenderLoop::polishAndSync (this=0x9813728, w=<optimized out>, inExpose=true) at scenegraph/qsgthreadedrenderloop.cpp:1150
#6  0xb6d2fd8e in QSGThreadedRenderLoop::handleExposure (this=0x9813728, window=0x9a3d190) at scenegraph/qsgthreadedrenderloop.cpp:946
#7  0xb6d3043d in QSGThreadedRenderLoop::exposureChanged (this=0x9813728, window=0x9a3d190) at scenegraph/qsgthreadedrenderloop.cpp:857
#8  0xb6d5711e in QQuickWindow::exposeEvent (this=0x9a3d190) at items/qquickwindow.cpp:207
#9  0xb5577857 in QWindow::event (this=0x9a3d190, ev=0xbf845240) at kernel/qwindow.cpp:2060
#10 0xb6d66698 in QQuickWindow::event (this=0x9a3d190, e=0xbf845240) at items/qquickwindow.cpp:1413
#11 0x0807e93b in DesktopView::event (this=0x9a3d190, e=0xbf845240) at /build/plasma-workspace-VahMbv/plasma-workspace-5.5.5.2/shell/desktopview.cpp:205
#12 0xb5bcd15a in QApplicationPrivate::notify_helper (this=0x96cb218, receiver=0x9a3d190, e=0xbf845240) at kernel/qapplication.cpp:3716
#13 0xb5bd281c in QApplication::notify (this=0xbf8455e8, receiver=0x9a3d190, e=0xbf845240) at kernel/qapplication.cpp:3499
#14 0xb523f66f in QCoreApplication::notifyInternal (this=0xbf8455e8, receiver=0x9a3d190, event=0xbf845240) at kernel/qcoreapplication.cpp:965
#15 0xb556e80e in QCoreApplication::sendSpontaneousEvent (event=0xbf845240, receiver=0x9a3d190) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:227
#16 QGuiApplicationPrivate::processExposeEvent (e=0x9a1f670) at kernel/qguiapplication.cpp:2663
#17 0xb556f789 in QGuiApplicationPrivate::processWindowSystemEvent (e=0x9a1f670) at kernel/qguiapplication.cpp:1658
#18 0xb5550fd7 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:625
#19 0xaf2c88ae in userEventSourceDispatch (source=0x9721b38) at eventdispatchers/qeventdispatcher_glib.cpp:70
#20 0xb4429ed9 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#21 0xb442a179 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#22 0xb442a244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0xb5297943 in QEventDispatcherGlib::processEvents (this=0x9723bb8, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#24 0xaf2c8a81 in QPAEventDispatcherGlib::processEvents (this=0x9723bb8, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:115
#25 0xb523c7a3 in QEventLoop::processEvents (this=0xbf845508, flags=...) at kernel/qeventloop.cpp:128
#26 0xb523cbfa in QEventLoop::exec (this=0xbf845508, flags=...) at kernel/qeventloop.cpp:204
#27 0xb52451d5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#28 0xb5564931 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#29 0xb5bc9024 in QApplication::exec () at kernel/qapplication.cpp:2976
#30 0x08071eee in main (argc=4, argv=0xbf8456e4) at /build/plasma-workspace-VahMbv/plasma-workspace-5.5.5.2/shell/main.cpp:181

Possible duplicates by query: bug 362598.

Reported using DrKonqi