Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-28-generic x86_64
Distribution: Ubuntu 16.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Work on Kubuntu as VM on QEMU with Eclipse. Plasma crash often, but restart automaticly

The crash can be reproduced sometimes.

-- 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 0x7f6c27b628c0 (LWP 2450))]

Thread 11 (Thread 0x7f6b63b8a700 (LWP 2475)):
#0  0x00007ffd0012dbdf in clock_gettime ()
#1  0x00007f6c22283fb6 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7f6b63b89a30) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f6c22a0fc16 in qt_clock_gettime (ts=0x7f6b63b89a30, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007f6c22b94529 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f6b5c002ed0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f6c22b94a95 in QTimerInfoList::timerWait (this=0x7f6b5c002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#7  0x00007f6c22b95e7e in timerSourcePrepareHelper (timeout=0x7f6b63b89b04, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f6b63b89b04) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f6c1effe92d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f6c1efff2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f6c1efff4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f6c22b96a9b in QEventDispatcherGlib::processEvents (this=0x7f6b5c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f6c22b3ddea in QEventLoop::exec (this=this@entry=0x7f6b63b89cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f6c2295a8a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f6b660697d7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#16 0x00007f6c2295f84e in QThreadPrivate::start (arg=0x1f650a0) at thread/qthread_unix.cpp:331
#17 0x00007f6c21a4c6fa in start_thread (arg=0x7f6b63b8a700) at pthread_create.c:333
#18 0x00007f6c22275b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f6bf3fff700 (LWP 2466)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6c275a7bd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f6c275a7c19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f6c21a4c6fa in start_thread (arg=0x7f6bf3fff700) at pthread_create.c:333
#4  0x00007f6c22275b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f6bf9b1c700 (LWP 2465)):
#0  0x00007ffd0012dbdf in clock_gettime ()
#1  0x00007f6c22283fb6 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7f6bf9b1ba50) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f6c22a0fc16 in qt_clock_gettime (ts=0x7f6bf9b1ba50, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:156
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:165
#5  0x00007f6c22b94529 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f6bec002ed0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f6c22b94a95 in QTimerInfoList::timerWait (this=0x7f6bec002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#7  0x00007f6c22b95e7e in timerSourcePrepareHelper (timeout=0x7f6bf9b1bb24, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f6bf9b1bb24) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f6c1effe92d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f6c1efff2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f6c1efff4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f6c22b96a9b in QEventDispatcherGlib::processEvents (this=0x7f6bec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#13 0x00007f6c22b3ddea in QEventLoop::exec (this=this@entry=0x7f6bf9b1bce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f6c2295a8a4 in QThread::exec (this=this@entry=0xaa97a0) at thread/qthread.cpp:503
#15 0x00007f6c252023c5 in QQmlThreadPrivate::run (this=0xaa97a0) at qml/ftw/qqmlthread.cpp:141
#16 0x00007f6c2295f84e in QThreadPrivate::start (arg=0xaa97a0) at thread/qthread_unix.cpp:331
#17 0x00007f6c21a4c6fa in start_thread (arg=0x7f6bf9b1c700) at pthread_create.c:333
#18 0x00007f6c22275b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f6bfb9d5700 (LWP 2464)):
#0  0x00007f6c22269e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f6c1efff39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6c1efff4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6c22b96a9b in QEventDispatcherGlib::processEvents (this=0x7f6bf40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f6c22b3ddea in QEventLoop::exec (this=this@entry=0x7f6bfb9d4ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f6c2295a8a4 in QThread::exec (this=this@entry=0xe19d20) at thread/qthread.cpp:503
#6  0x00007f6c252023c5 in QQmlThreadPrivate::run (this=0xe19d20) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f6c2295f84e in QThreadPrivate::start (arg=0xe19d20) at thread/qthread_unix.cpp:331
#8  0x00007f6c21a4c6fa in start_thread (arg=0x7f6bfb9d5700) at pthread_create.c:333
#9  0x00007f6c22275b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f6bffe29700 (LWP 2463)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6c09a06aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f6c09a06907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f6c21a4c6fa in start_thread (arg=0x7f6bffe29700) at pthread_create.c:333
#4  0x00007f6c22275b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f6c0062a700 (LWP 2462)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6c09a06aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f6c09a06907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f6c21a4c6fa in start_thread (arg=0x7f6c0062a700) at pthread_create.c:333
#4  0x00007f6c22275b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f6c00e2b700 (LWP 2461)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6c09a06aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f6c09a06907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f6c21a4c6fa in start_thread (arg=0x7f6c00e2b700) at pthread_create.c:333
#4  0x00007f6c22275b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f6c0162c700 (LWP 2460)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f6c09a06aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f6c09a06907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f6c21a4c6fa in start_thread (arg=0x7f6c0162c700) at pthread_create.c:333
#4  0x00007f6c22275b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f6c0bfff700 (LWP 2455)):
#0  0x00007f6c1f043ae4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f6c1effed5a in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6c1efff340 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6c1efff4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f6c22b96a9b in QEventDispatcherGlib::processEvents (this=0x7f6c040008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f6c22b3ddea in QEventLoop::exec (this=this@entry=0x7f6c0bffece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f6c2295a8a4 in QThread::exec (this=this@entry=0xb9b390) at thread/qthread.cpp:503
#7  0x00007f6c252023c5 in QQmlThreadPrivate::run (this=0xb9b390) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f6c2295f84e in QThreadPrivate::start (arg=0xb9b390) at thread/qthread_unix.cpp:331
#9  0x00007f6c21a4c6fa in start_thread (arg=0x7f6c0bfff700) at pthread_create.c:333
#10 0x00007f6c22275b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f6c12d21700 (LWP 2453)):
#0  0x00007f6c22269e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f6c2632ec62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f6c263308d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f6c14e6f629 in QXcbEventReader::run (this=0xac7680) at qxcbconnection.cpp:1253
#4  0x00007f6c2295f84e in QThreadPrivate::start (arg=0xac7680) at thread/qthread_unix.cpp:331
#5  0x00007f6c21a4c6fa in start_thread (arg=0x7f6c12d21700) at pthread_create.c:333
#6  0x00007f6c22275b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f6c27b628c0 (LWP 2450)):
[KCrash Handler]
#6  _wordcopy_fwd_aligned (dstp=4385602936, srcp=20867456, len=8721504) at wordcopy.c:101
#7  0x00007f6c221fd70f in __memmove_sse2 (dest=0x10566fd80, src=<optimized out>, len=69772032) at ../string/memmove.c:75
#8  0x00007f6c096964ad in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#9  0x00007f6c09694d95 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#10 0x00007f6c10184c1f in Plasma::WindowThumbnail::bindGLXTexture (this=this@entry=0x22c2a70) at ../../../../src/declarativeimports/core/windowthumbnail.cpp:447
#11 0x00007f6c10185e44 in Plasma::WindowThumbnail::windowToTextureGLX (this=this@entry=0x22c2a70, textureNode=textureNode@entry=0x154f2d0) at ../../../../src/declarativeimports/core/windowthumbnail.cpp:282
#12 0x00007f6c10186803 in Plasma::WindowThumbnail::windowToTexture (this=0x22c2a70, textureNode=0x154f2d0) at ../../../../src/declarativeimports/core/windowthumbnail.cpp:394
#13 0x00007f6c10186d24 in Plasma::WindowThumbnail::updatePaintNode (this=0x22c2a70, oldNode=<optimized out>, updatePaintNodeData=<optimized out>) at ../../../../src/declarativeimports/core/windowthumbnail.cpp:199
#14 0x00007f6c25c272d8 in QQuickWindowPrivate::updateDirtyNode (this=this@entry=0x2383f00, item=item@entry=0x22c2a70) at items/qquickwindow.cpp:2984
#15 0x00007f6c25c27b4b in QQuickWindowPrivate::updateDirtyNodes (this=this@entry=0x2383f00) at items/qquickwindow.cpp:2722
#16 0x00007f6c25c27cc0 in QQuickWindowPrivate::syncSceneGraph (this=this@entry=0x2383f00) at items/qquickwindow.cpp:341
#17 0x00007f6c25bf612c in QSGGuiThreadRenderLoop::renderWindow (this=this@entry=0xcdbc00, window=0x1cbea90) at scenegraph/qsgrenderloop.cpp:372
#18 0x00007f6c25bf7aa6 in QSGGuiThreadRenderLoop::exposureChanged (this=0xcdbc00, window=0x1cbea90) at scenegraph/qsgrenderloop.cpp:422
#19 0x00007f6c22e8b2f5 in QWindow::event (this=this@entry=0x1cbea90, ev=ev@entry=0x7ffd000dd0d0) at kernel/qwindow.cpp:2060
#20 0x00007f6c25c31871 in QQuickWindow::event (this=this@entry=0x1cbea90, e=e@entry=0x7ffd000dd0d0) at items/qquickwindow.cpp:1413
#21 0x00007f6c276d82eb in PlasmaQuick::Dialog::event (this=this@entry=0x1cbea90, event=event@entry=0x7ffd000dd0d0) at ../../../src/plasmaquick/dialog.cpp:1168
#22 0x00007f6c1017ec45 in ToolTipDialog::event (this=0x1cbea90, e=0x7ffd000dd0d0) at ../../../../src/declarativeimports/core/tooltipdialog.cpp:120
#23 0x00007f6c2364305c in QApplicationPrivate::notify_helper (this=this@entry=0xaac6a0, receiver=receiver@entry=0x1cbea90, e=e@entry=0x7ffd000dd0d0) at kernel/qapplication.cpp:3716
#24 0x00007f6c23648516 in QApplication::notify (this=0x7ffd000dd4f0, receiver=0x1cbea90, e=0x7ffd000dd0d0) at kernel/qapplication.cpp:3499
#25 0x00007f6c22b4062b in QCoreApplication::notifyInternal (this=0x7ffd000dd4f0, receiver=receiver@entry=0x1cbea90, event=event@entry=0x7ffd000dd0d0) at kernel/qcoreapplication.cpp:965
#26 0x00007f6c22e834ec in QCoreApplication::sendSpontaneousEvent (event=0x7ffd000dd0d0, receiver=0x1cbea90) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:227
#27 QGuiApplicationPrivate::processExposeEvent (e=0x2045ee0) at kernel/qguiapplication.cpp:2663
#28 0x00007f6c22e8425d in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x2045ee0) at kernel/qguiapplication.cpp:1658
#29 0x00007f6c22e67f38 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:625
#30 0x00007f6c14ea1070 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#31 0x00007f6c1efff1a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f6c1efff400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007f6c1efff4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f6c22b96a7f in QEventDispatcherGlib::processEvents (this=0xaeb300, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#35 0x00007f6c22b3ddea in QEventLoop::exec (this=this@entry=0x7ffd000dd390, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#36 0x00007f6c22b45e8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#37 0x00007f6c22e79c3c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#38 0x00007f6c2363f495 in QApplication::exec () at kernel/qapplication.cpp:2976
#39 0x0000000000432d4a in main (argc=4, argv=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/main.cpp:181

Possible duplicates by query: bug 356090.

Reported using DrKonqi