Application: plasmashell (5.5.5)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-34-generic x86_64
Distribution: Ubuntu 16.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
The two things I am doing most frequently are a)bringing up the app launcher panel from its autohidden state, or simply working in IntelliJ.

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 0x7fb9ebd5a8c0 (LWP 3770))]

Thread 11 (Thread 0x7fb9232e1700 (LWP 3860)):
#0  0x00007fb9e6465e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb9e31fb39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb9e31fb4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb9e6d92a9b in QEventDispatcherGlib::processEvents (this=0x7fb91c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb9e6d39dea in QEventLoop::exec (this=this@entry=0x7fb9232e0cc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb9e6b568a4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007fb9257c07d7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#7  0x00007fb9e6b5b84e in QThreadPrivate::start (arg=0x2cf4500) at thread/qthread_unix.cpp:331
#8  0x00007fb9e5c486fa in start_thread (arg=0x7fb9232e1700) at pthread_create.c:333
#9  0x00007fb9e6471b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fb9b7fff700 (LWP 3851)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb9eb7a3bd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fb9eb7a3c19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fb9e5c486fa in start_thread (arg=0x7fb9b7fff700) at pthread_create.c:333
#4  0x00007fb9e6471b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fb9bdf48700 (LWP 3844)):
#0  0x00007ffe35d7a9a9 in ?? ()
#1  0x00007ffe35d7acd5 in clock_gettime ()
#2  0x00007fb9e647ffb6 in __GI___clock_gettime (clock_id=1, tp=tp@entry=0x7fb9bdf47a50) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007fb9e6c0bc16 in qt_clock_gettime (ts=0x7fb9bdf47a50, 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  0x00007fb9e6d90529 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7fb9b0002ed0) at kernel/qtimerinfo_unix.cpp:84
#7  0x00007fb9e6d90a95 in QTimerInfoList::timerWait (this=0x7fb9b0002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#8  0x00007fb9e6d91e7e in timerSourcePrepareHelper (timeout=0x7fb9bdf47b24, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#9  timerSourcePrepare (source=<optimized out>, timeout=0x7fb9bdf47b24) at kernel/qeventdispatcher_glib.cpp:160
#10 0x00007fb9e31fa92d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fb9e31fb2cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fb9e31fb4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007fb9e6d92a9b in QEventDispatcherGlib::processEvents (this=0x7fb9b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0x00007fb9e6d39dea in QEventLoop::exec (this=this@entry=0x7fb9bdf47ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00007fb9e6b568a4 in QThread::exec (this=this@entry=0x1a2d400) at thread/qthread.cpp:503
#16 0x00007fb9e93fe3c5 in QQmlThreadPrivate::run (this=0x1a2d400) at qml/ftw/qqmlthread.cpp:141
#17 0x00007fb9e6b5b84e in QThreadPrivate::start (arg=0x1a2d400) at thread/qthread_unix.cpp:331
#18 0x00007fb9e5c486fa in start_thread (arg=0x7fb9bdf48700) at pthread_create.c:333
#19 0x00007fb9e6471b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fb9bfdf7700 (LWP 3838)):
#0  0x00007fb9e6465e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb9e31fb39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb9e31fb4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb9e6d92a9b in QEventDispatcherGlib::processEvents (this=0x7fb9b80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb9e6d39dea in QEventLoop::exec (this=this@entry=0x7fb9bfdf6ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb9e6b568a4 in QThread::exec (this=this@entry=0x1947790) at thread/qthread.cpp:503
#6  0x00007fb9e93fe3c5 in QQmlThreadPrivate::run (this=0x1947790) at qml/ftw/qqmlthread.cpp:141
#7  0x00007fb9e6b5b84e in QThreadPrivate::start (arg=0x1947790) at thread/qthread_unix.cpp:331
#8  0x00007fb9e5c486fa in start_thread (arg=0x7fb9bfdf7700) at pthread_create.c:333
#9  0x00007fb9e6471b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fb9c462a700 (LWP 3809)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb9cde03aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fb9cde03907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007fb9e5c486fa in start_thread (arg=0x7fb9c462a700) at pthread_create.c:333
#4  0x00007fb9e6471b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fb9c4e2b700 (LWP 3808)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb9cde03aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fb9cde03907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007fb9e5c486fa in start_thread (arg=0x7fb9c4e2b700) at pthread_create.c:333
#4  0x00007fb9e6471b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fb9c562c700 (LWP 3807)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb9cde03aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fb9cde03907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007fb9e5c486fa in start_thread (arg=0x7fb9c562c700) at pthread_create.c:333
#4  0x00007fb9e6471b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fb9cc89d700 (LWP 3806)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb9cde03aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007fb9cde03907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007fb9e5c486fa in start_thread (arg=0x7fb9cc89d700) at pthread_create.c:333
#4  0x00007fb9e6471b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fb9d4893700 (LWP 3789)):
#0  0x00007fb9e6465e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb9e31fb39c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb9e31fb4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb9e6d92a9b in QEventDispatcherGlib::processEvents (this=0x7fb9c80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007fb9e6d39dea in QEventLoop::exec (this=this@entry=0x7fb9d4892ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007fb9e6b568a4 in QThread::exec (this=this@entry=0x16d2fe0) at thread/qthread.cpp:503
#6  0x00007fb9e93fe3c5 in QQmlThreadPrivate::run (this=0x16d2fe0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007fb9e6b5b84e in QThreadPrivate::start (arg=0x16d2fe0) at thread/qthread_unix.cpp:331
#8  0x00007fb9e5c486fa in start_thread (arg=0x7fb9d4893700) at pthread_create.c:333
#9  0x00007fb9e6471b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fb9d70a1700 (LWP 3775)):
#0  0x00007fb9e6465e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb9ea52ac62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fb9ea52c8d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fb9d91ef629 in QXcbEventReader::run (this=0x1606690) at qxcbconnection.cpp:1253
#4  0x00007fb9e6b5b84e in QThreadPrivate::start (arg=0x1606690) at thread/qthread_unix.cpp:331
#5  0x00007fb9e5c486fa in start_thread (arg=0x7fb9d70a1700) at pthread_create.c:333
#6  0x00007fb9e6471b5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fb9ebd5a8c0 (LWP 3770)):
[KCrash Handler]
#6  __memmove_ssse3_back () at ../sysdeps/x86_64/multiarch/memcpy-ssse3-back.S:1574
#7  0x00007fb9cda934ad in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#8  0x00007fb9cda91d95 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#9  0x00007fb9cf594c1f in Plasma::WindowThumbnail::bindGLXTexture (this=this@entry=0x393f040) at /build/plasma-framework-ZIMEEb/plasma-framework-5.18.0/src/declarativeimports/core/windowthumbnail.cpp:447
#10 0x00007fb9cf595e44 in Plasma::WindowThumbnail::windowToTextureGLX (this=this@entry=0x393f040, textureNode=textureNode@entry=0x367d100) at /build/plasma-framework-ZIMEEb/plasma-framework-5.18.0/src/declarativeimports/core/windowthumbnail.cpp:282
#11 0x00007fb9cf596803 in Plasma::WindowThumbnail::windowToTexture (this=0x393f040, textureNode=0x367d100) at /build/plasma-framework-ZIMEEb/plasma-framework-5.18.0/src/declarativeimports/core/windowthumbnail.cpp:394
#12 0x00007fb9cf596d24 in Plasma::WindowThumbnail::updatePaintNode (this=0x393f040, oldNode=<optimized out>, updatePaintNodeData=<optimized out>) at /build/plasma-framework-ZIMEEb/plasma-framework-5.18.0/src/declarativeimports/core/windowthumbnail.cpp:199
#13 0x00007fb9e9e232d8 in QQuickWindowPrivate::updateDirtyNode (this=this@entry=0x2d47bf0, item=item@entry=0x393f040) at items/qquickwindow.cpp:2984
#14 0x00007fb9e9e23b4b in QQuickWindowPrivate::updateDirtyNodes (this=this@entry=0x2d47bf0) at items/qquickwindow.cpp:2722
#15 0x00007fb9e9e23cc0 in QQuickWindowPrivate::syncSceneGraph (this=this@entry=0x2d47bf0) at items/qquickwindow.cpp:341
#16 0x00007fb9e9df212c in QSGGuiThreadRenderLoop::renderWindow (this=this@entry=0x182ba50, window=0x2e62610) at scenegraph/qsgrenderloop.cpp:372
#17 0x00007fb9e9df32a1 in QSGGuiThreadRenderLoop::event (this=0x182ba50, e=<optimized out>) at scenegraph/qsgrenderloop.cpp:474
#18 0x00007fb9e783f05c in QApplicationPrivate::notify_helper (this=this@entry=0x15eb6a0, receiver=receiver@entry=0x182ba50, e=e@entry=0x7ffe35d45730) at kernel/qapplication.cpp:3716
#19 0x00007fb9e7844516 in QApplication::notify (this=0x7ffe35d45ad0, receiver=0x182ba50, e=0x7ffe35d45730) at kernel/qapplication.cpp:3499
#20 0x00007fb9e6d3c62b in QCoreApplication::notifyInternal (this=0x7ffe35d45ad0, receiver=0x182ba50, event=event@entry=0x7ffe35d45730) at kernel/qcoreapplication.cpp:965
#21 0x00007fb9e6d9189d in QCoreApplication::sendEvent (event=0x7ffe35d45730, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:224
#22 QTimerInfoList::activateTimers (this=0x162f410) at kernel/qtimerinfo_unix.cpp:637
#23 0x00007fb9e6d91da1 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:177
#24 0x00007fb9e31fb1a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fb9e31fb400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fb9e31fb4ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fb9e6d92a7f in QEventDispatcherGlib::processEvents (this=0x162ad80, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#28 0x00007fb9e6d39dea in QEventLoop::exec (this=this@entry=0x7ffe35d45970, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#29 0x00007fb9e6d41e8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#30 0x00007fb9e7075c3c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#31 0x00007fb9e783b495 in QApplication::exec () at kernel/qapplication.cpp:2976
#32 0x0000000000432d4a in main (argc=2, argv=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/shell/main.cpp:181

Possible duplicates by query: bug 363380, bug 363371, bug 363359, bug 362526, bug 362509.

Reported using DrKonqi