Application: krunner (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:
typing ALT+F2 to start the application
- Unusual behavior I noticed:
plasma doesn't start after log in

-- Backtrace:
Application: krunner (krunner), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7f15e123c8c0 (LWP 4125))]

Thread 10 (Thread 0x7f15b2fe6700 (LWP 5683)):
[KCrash Handler]
#6  __strstr_sse2 (haystack_start=0x0, needle_start=0x7f15e083ffdf "nouveau") at ../string/strstr.c:63
#7  0x00007f15e06a2aca in strstr (__needle=0x7f15e083ffdf "nouveau", __haystack=<optimized out>) at /usr/include/string.h:332
#8  QSGRenderContext::initialize (this=0x1c00530, context=<optimized out>) at scenegraph/qsgcontext.cpp:659
#9  0x00007f15e06c6409 in QSGRenderThread::run (this=0x1ef75e0) at scenegraph/qsgthreadedrenderloop.cpp:676
#10 0x00007f15de35484e in QThreadPrivate::start (arg=0x1ef75e0) at thread/qthread_unix.cpp:331
#11 0x00007f15dbe666fa in start_thread (arg=0x7f15b2fe6700) at pthread_create.c:333
#12 0x00007f15ddc5db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f15bba8c700 (LWP 4145)):
#0  0x00007f15db2c88e3 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f15db2c92cb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f15db2c94ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f15de58ba9b in QEventDispatcherGlib::processEvents (this=0x7f15b40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f15de532dea in QEventLoop::exec (this=this@entry=0x7f15bba8bce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f15de34f8a4 in QThread::exec (this=this@entry=0x1cff9f0) at thread/qthread.cpp:503
#6  0x00007f15e01d83c5 in QQmlThreadPrivate::run (this=0x1cff9f0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f15de35484e in QThreadPrivate::start (arg=0x1cff9f0) at thread/qthread_unix.cpp:331
#8  0x00007f15dbe666fa in start_thread (arg=0x7f15bba8c700) at pthread_create.c:333
#9  0x00007f15ddc5db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f15c11f9700 (LWP 4132)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f15c7955aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f15c7955907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f15dbe666fa in start_thread (arg=0x7f15c11f9700) at pthread_create.c:333
#4  0x00007f15ddc5db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f15c19fa700 (LWP 4131)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f15c7955aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f15c7955907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f15dbe666fa in start_thread (arg=0x7f15c19fa700) at pthread_create.c:333
#4  0x00007f15ddc5db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f15c21fb700 (LWP 4130)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f15c7955aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f15c7955907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f15dbe666fa in start_thread (arg=0x7f15c21fb700) at pthread_create.c:333
#4  0x00007f15ddc5db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f15c29fc700 (LWP 4129)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f15c7955aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f15c7955907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f15dbe666fa in start_thread (arg=0x7f15c29fc700) at pthread_create.c:333
#4  0x00007f15ddc5db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f15c31fd700 (LWP 4128)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f15c7955aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f15c7955907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f15dbe666fa in start_thread (arg=0x7f15c31fd700) at pthread_create.c:333
#4  0x00007f15ddc5db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f15c39fe700 (LWP 4127)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f15c7955aa3 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f15c7955907 in ?? () from /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f15dbe666fa in start_thread (arg=0x7f15c39fe700) at pthread_create.c:333
#4  0x00007f15ddc5db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f15ce52e700 (LWP 4126)):
#0  0x00007f15ddc51e8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f15dd130c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f15dd1328d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f15d0ce8629 in QXcbEventReader::run (this=0x1b6d690) at qxcbconnection.cpp:1253
#4  0x00007f15de35484e in QThreadPrivate::start (arg=0x1b6d690) at thread/qthread_unix.cpp:331
#5  0x00007f15dbe666fa in start_thread (arg=0x7f15ce52e700) at pthread_create.c:333
#6  0x00007f15ddc5db5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f15e123c8c0 (LWP 4125)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f15de355aeb in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1b79570) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ef7620, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007f15e06c2bc6 in QSGThreadedRenderLoop::polishAndSync (this=this@entry=0x1c01e30, w=<optimized out>, w@entry=0x1ef6250, inExpose=inExpose@entry=true) at scenegraph/qsgthreadedrenderloop.cpp:1150
#4  0x00007f15e06c509c in QSGThreadedRenderLoop::handleExposure (this=this@entry=0x1c01e30, window=window@entry=0x7ffd83d106e0) at scenegraph/qsgthreadedrenderloop.cpp:946
#5  0x00007f15e06c5733 in QSGThreadedRenderLoop::exposureChanged (this=0x1c01e30, window=0x7ffd83d106e0) at scenegraph/qsgthreadedrenderloop.cpp:857
#6  0x00007f15de8822f5 in QWindow::event (this=this@entry=0x7ffd83d106e0, ev=ev@entry=0x7ffd83d102e0) at kernel/qwindow.cpp:2060
#7  0x00007f15e06f8871 in QQuickWindow::event (this=0x7ffd83d106e0, e=0x7ffd83d102e0) at items/qquickwindow.cpp:1413
#8  0x00007f15e0f942db in PlasmaQuick::Dialog::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#9  0x0000000000409eaf in View::event (this=0x7ffd83d106e0, event=0x7ffd83d102e0) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/krunner/view.cpp:190
#10 0x00007f15df0ba05c in QApplicationPrivate::notify_helper (this=this@entry=0x1b55bc0, receiver=receiver@entry=0x7ffd83d106e0, e=e@entry=0x7ffd83d102e0) at kernel/qapplication.cpp:3716
#11 0x00007f15df0bf516 in QApplication::notify (this=0x7ffd83d10670, receiver=0x7ffd83d106e0, e=0x7ffd83d102e0) at kernel/qapplication.cpp:3499
#12 0x00007f15de53562b in QCoreApplication::notifyInternal (this=0x7ffd83d10670, receiver=receiver@entry=0x7ffd83d106e0, event=event@entry=0x7ffd83d102e0) at kernel/qcoreapplication.cpp:965
#13 0x00007f15de87a4ec in QCoreApplication::sendSpontaneousEvent (event=0x7ffd83d102e0, receiver=0x7ffd83d106e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:227
#14 QGuiApplicationPrivate::processExposeEvent (e=0x1b75f40) at kernel/qguiapplication.cpp:2663
#15 0x00007f15de87b25d in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x1b75f40) at kernel/qguiapplication.cpp:1658
#16 0x00007f15de85ef38 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:625
#17 0x00007f15d0d1a070 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#18 0x00007f15db2c91a7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f15db2c9400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f15db2c94ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f15de58ba7f in QEventDispatcherGlib::processEvents (this=0x1bd6c10, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#22 0x00007f15de532dea in QEventLoop::exec (this=this@entry=0x7ffd83d105a0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#23 0x00007f15de53ae8c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#24 0x00007f15de870c3c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542
#25 0x00007f15df0b6495 in QApplication::exec () at kernel/qapplication.cpp:2976
#26 0x0000000000407697 in main (argc=1, argv=<optimized out>) at /build/plasma-workspace-kxRFE_/plasma-workspace-5.5.5.2/krunner/main.cpp:80

Possible duplicates by query: bug 354277.

Reported using DrKonqi