Bug 358762

Application: plasmashell (5.4.3)

Qt Version: 5.5.1
Operating System: Linux 4.4.0-2-lowlatency x86_64
Distribution: Ubuntu Xenial Xerus (development branch)

-- Information about the crash:
- What I was doing when the application crashed:
After a complete reinstall to Ubuntu 16.04 Alpha 2 Plasma and krunner crashes directly after login. The screen is totally empty except for the wallpaper a mouse pointer and the crash dialogues.

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 0x7f1ac9b0b8c0 (LWP 6838))]

Thread 7 (Thread 0x7f1ab5ac1700 (LWP 6840)):
#0  0x00007f1ac426d83d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1ac8303c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f1ac83058d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f1ab823c4a9 in QXcbEventReader::run (this=0x20cf010) at qxcbconnection.cpp:1229
#4  0x00007f1ac496387e in QThreadPrivate::start (arg=0x20cf010) at thread/qthread_unix.cpp:331
#5  0x00007f1ac3a4f66a in start_thread (arg=0x7f1ab5ac1700) at pthread_create.c:333
#6  0x00007f1ac4278e4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f1aac949700 (LWP 6843)):
#0  0x00007f1ac426d83d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1ac101333c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1ac101344c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1ac4b9b2eb in QEventDispatcherGlib::processEvents (this=0x7f1aa80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ac4b422fa in QEventLoop::exec (this=this@entry=0x7f1aac948ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ac495e8d4 in QThread::exec (this=this@entry=0x219fbc0) at thread/qthread.cpp:503
#6  0x00007f1ac71cfc85 in QQmlThreadPrivate::run (this=0x219fbc0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ac496387e in QThreadPrivate::start (arg=0x219fbc0) at thread/qthread_unix.cpp:331
#8  0x00007f1ac3a4f66a in start_thread (arg=0x7f1aac949700) at pthread_create.c:333
#9  0x00007f1ac4278e4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f1aa2d70700 (LWP 6844)):
#0  0x00007f1ac1057a89 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f1ac1012af1 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1ac10132b7 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1ac101344c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f1ac4b9b2eb in QEventDispatcherGlib::processEvents (this=0x7f1a9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007f1ac4b422fa in QEventLoop::exec (this=this@entry=0x7f1aa2d6fce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1ac495e8d4 in QThread::exec (this=this@entry=0x22d7030) at thread/qthread.cpp:503
#7  0x00007f1ac71cfc85 in QQmlThreadPrivate::run (this=0x22d7030) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f1ac496387e in QThreadPrivate::start (arg=0x22d7030) at thread/qthread_unix.cpp:331
#9  0x00007f1ac3a4f66a in start_thread (arg=0x7f1aa2d70700) at pthread_create.c:333
#10 0x00007f1ac4278e4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f1aa0cd7700 (LWP 6847)):
#0  0x00007f1ac426d83d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1ac101333c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1ac101344c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1ac4b9b2eb in QEventDispatcherGlib::processEvents (this=0x7f1a940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ac4b422fa in QEventLoop::exec (this=this@entry=0x7f1aa0cd6ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ac495e8d4 in QThread::exec (this=this@entry=0x24551d0) at thread/qthread.cpp:503
#6  0x00007f1ac71cfc85 in QQmlThreadPrivate::run (this=0x24551d0) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f1ac496387e in QThreadPrivate::start (arg=0x24551d0) at thread/qthread_unix.cpp:331
#8  0x00007f1ac3a4f66a in start_thread (arg=0x7f1aa0cd7700) at pthread_create.c:333
#9  0x00007f1ac4278e4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f1a9b1c4700 (LWP 6872)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1ac955dbd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f1ac955dc19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f1ac3a4f66a in start_thread (arg=0x7f1a9b1c4700) at pthread_create.c:333
#4  0x00007f1ac4278e4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f1a9897a700 (LWP 6873)):
#0  0x00007f1ac426d83d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f1ac101333c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f1ac101344c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f1ac4b9b2eb in QEventDispatcherGlib::processEvents (this=0x7f1a100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#4  0x00007f1ac4b422fa in QEventLoop::exec (this=this@entry=0x7f1a98979c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f1ac495e8d4 in QThread::exec (this=this@entry=0x26ce840) at thread/qthread.cpp:503
#6  0x00007f1ac7b4ee46 in QQuickPixmapReader::run (this=0x26ce840) at util/qquickpixmapcache.cpp:817
#7  0x00007f1ac496387e in QThreadPrivate::start (arg=0x26ce840) at thread/qthread_unix.cpp:331
#8  0x00007f1ac3a4f66a in start_thread (arg=0x7f1a9897a700) at pthread_create.c:333
#9  0x00007f1ac4278e4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f1ac9b0b8c0 (LWP 6838)):
[KCrash Handler]
#6  0x00007f1ac41a7227 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007f1ac41a8e8a in __GI_abort () at abort.c:89
#8  0x00007f1ac4950ff1 in qt_message_fatal (context=..., message=<synthetic pointer>) at global/qlogging.cpp:1578
#9  QMessageLogger::fatal (this=this@entry=0x7ffe3113dc60, msg=msg@entry=0x7f1ac7d3ef45 "%s") at global/qlogging.cpp:781
#10 0x00007f1ac7bbbcd1 in QSGRenderLoop::handleContextCreationFailure (this=this@entry=0x230dc80, window=0x2566760, isEs=isEs@entry=false) at scenegraph/qsgrenderloop.cpp:244
#11 0x00007f1ac7bbcce5 in QSGGuiThreadRenderLoop::renderWindow (this=this@entry=0x230dc80, window=0x2566760) at scenegraph/qsgrenderloop.cpp:333
#12 0x00007f1ac7bbdc86 in QSGGuiThreadRenderLoop::exposureChanged (this=0x230dc80, window=0x2566760) at scenegraph/qsgrenderloop.cpp:422
#13 0x00007f1ac4e90015 in QWindow::event (this=this@entry=0x2566760, ev=ev@entry=0x7ffe3113e150) at kernel/qwindow.cpp:2060
#14 0x00007f1ac7bf71e1 in QQuickWindow::event (this=this@entry=0x2566760, e=e@entry=0x7ffe3113e150) at items/qquickwindow.cpp:1413
#15 0x000000000043f1b6 in DesktopView::event (this=0x2566760, e=0x7ffe3113e150) at ../../shell/desktopview.cpp:207
#16 0x00007f1ac5647ffc in QApplicationPrivate::notify_helper (this=this@entry=0x20b7990, receiver=receiver@entry=0x2566760, e=e@entry=0x7ffe3113e150) at kernel/qapplication.cpp:3716
#17 0x00007f1ac564d4c6 in QApplication::notify (this=0x7ffe3113e590, receiver=0x2566760, e=0x7ffe3113e150) at kernel/qapplication.cpp:3499
#18 0x00007f1ac4b44b6b in QCoreApplication::notifyInternal (this=0x7ffe3113e590, receiver=receiver@entry=0x2566760, event=event@entry=0x7ffe3113e150) at kernel/qcoreapplication.cpp:965
#19 0x00007f1ac4e8820c in QCoreApplication::sendSpontaneousEvent (event=0x7ffe3113e150, receiver=0x2566760) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:227
#20 QGuiApplicationPrivate::processExposeEvent (e=0x255d290) at kernel/qguiapplication.cpp:2651
#21 0x00007f1ac4e88f7d in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x255d290) at kernel/qguiapplication.cpp:1646
#22 0x00007f1ac4e6ce68 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:625
#23 0x00007f1ab826dd70 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#24 0x00007f1ac1013147 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f1ac10133a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f1ac101344c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f1ac4b9b2cf in QEventDispatcherGlib::processEvents (this=0x20fd200, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#28 0x00007f1ac4b422fa in QEventLoop::exec (this=this@entry=0x7ffe3113e410, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#29 0x00007f1ac4b4a3cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229
#30 0x00007f1ac4e7e8ec in QGuiApplication::exec () at kernel/qguiapplication.cpp:1530
#31 0x00007f1ac5644435 in QApplication::exec () at kernel/qapplication.cpp:2976
#32 0x0000000000432b43 in main (argc=4, argv=<optimized out>) at ../../shell/main.cpp:176

Possible duplicates by query: bug 356148, bug 355943, bug 355096, bug 355033, bug 354966.

Reported using DrKonqi