Application: plasmashell (5.5.4)

Qt Version: 5.5.1
Operating System: Linux 4.3.3-303.fc23.x86_64 x86_64
Distribution: "Fedora release 23 (Twenty Three)"

-- Information about the crash:
The crash occurred before the Applications Menu had a chance to open. On restart, the menu was working regularly.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ffff7ee4940 (LWP 15607))]

Thread 8 (Thread 0x7fffde425700 (LWP 15610)):
#0  0x00007fffef8c7fdd in poll () from /lib64/libc.so.6
#1  0x00007ffff5d7e272 in poll (__timeout=-1, __nfds=1, __fds=0x7fffde424b80) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x555555836cf0, cond=cond@entry=0x555555836d30, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x00007ffff5d7fee7 in xcb_wait_for_event (c=0x555555836cf0) at xcb_in.c:693
#4  0x00007fffe03afda9 in QXcbEventReader::run() () from /lib64/libQt5XcbQpa.so.5
#5  0x00007ffff04d03de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#6  0x00007fffeec0b60a in start_thread () from /lib64/libpthread.so.0
#7  0x00007fffef8d3a4d in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fffd7bdd700 (LWP 15629)):
#0  0x00007fffef8c7fdd in poll () from /lib64/libc.so.6
#1  0x00007fffeadec16c in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7fffd0003070, timeout=<optimized out>, context=0x7fffd0000990) at gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x7fffd0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007fffeadec27c in g_main_context_iteration (context=0x7fffd0000990, may_block=1) at gmain.c:3901
#4  0x00007ffff0707ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007ffff06aeeca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007ffff04cb434 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007ffff48169b5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007ffff04d03de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007fffeec0b60a in start_thread () from /lib64/libpthread.so.0
#10 0x00007fffef8d3a4d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fffce97a700 (LWP 15630)):
#0  0x00007fffef8c7fdd in poll () from /lib64/libc.so.6
#1  0x00007fffeadec16c in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7fffc8002e70, timeout=<optimized out>, context=0x7fffc8000990) at gmain.c:4135
#2  g_main_context_iterate (context=context@entry=0x7fffc8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3835
#3  0x00007fffeadec27c in g_main_context_iteration (context=0x7fffc8000990, may_block=1) at gmain.c:3901
#4  0x00007ffff0707ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007ffff06aeeca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007ffff04cb434 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007ffff48169b5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007ffff04d03de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007fffeec0b60a in start_thread () from /lib64/libpthread.so.0
#10 0x00007fffef8d3a4d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fffccf81700 (LWP 15631)):
#0  0x00007fffeae30719 in g_mutex_lock (mutex=mutex@entry=0x7fffc0000990) at gthread-posix.c:1338
#1  0x00007fffeadeb110 in g_main_context_acquire (context=0x7fffc0000990) at gmain.c:3214
#2  0x00007fffeadec025 in g_main_context_iterate (context=context@entry=0x7fffc0000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3790
#3  0x00007fffeadec27c in g_main_context_iteration (context=0x7fffc0000990, may_block=1) at gmain.c:3901
#4  0x00007ffff0707ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007ffff06aeeca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#6  0x00007ffff04cb434 in QThread::exec() () from /lib64/libQt5Core.so.5
#7  0x00007ffff48169b5 in QQmlThreadPrivate::run() () from /lib64/libQt5Qml.so.5
#8  0x00007ffff04d03de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#9  0x00007fffeec0b60a in start_thread () from /lib64/libpthread.so.0
#10 0x00007fffef8d3a4d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fffc75f7700 (LWP 15632)):
#0  0x00007fffeec10b10 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007ffff766e514 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7ffff7957380 <QTWTF::pageheap_memory>) at /usr/src/debug/qtscript-opensource-src-5.5.1/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007ffff766e559 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at /usr/src/debug/qtscript-opensource-src-5.5.1/src/3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fffeec0b60a in start_thread () from /lib64/libpthread.so.0
#4  0x00007fffef8d3a4d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fff3fb17700 (LWP 15633)):
#0  0x00007fffeadeb168 in g_main_context_acquire (context=0x7fff38000990) at gmain.c:3219
#1  0x00007fffeadec025 in g_main_context_iterate (context=context@entry=0x7fff38000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3790
#2  0x00007fffeadec27c in g_main_context_iteration (context=0x7fff38000990, may_block=1) at gmain.c:3901
#3  0x00007ffff0707ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007ffff06aeeca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007ffff04cb434 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007ffff53c38d6 in QQuickPixmapReader::run() () from /lib64/libQt5Quick.so.5
#7  0x00007ffff04d03de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007fffeec0b60a in start_thread () from /lib64/libpthread.so.0
#9  0x00007fffef8d3a4d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fff2ec19700 (LWP 15666)):
#0  0x00007fffeae30719 in g_mutex_lock (mutex=mutex@entry=0x7fff28000990) at gthread-posix.c:1338
#1  0x00007fffeadec12e in g_main_context_iterate (context=context@entry=0x7fff28000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3844
#2  0x00007fffeadec27c in g_main_context_iteration (context=0x7fff28000990, may_block=1) at gmain.c:3901
#3  0x00007ffff0707ecb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#4  0x00007ffff06aeeca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#5  0x00007ffff04cb434 in QThread::exec() () from /lib64/libQt5Core.so.5
#6  0x00007fff30852547 in KCupsConnection::run() () from /lib64/libkcupslib.so
#7  0x00007ffff04d03de in QThreadPrivate::start(void*) () from /lib64/libQt5Core.so.5
#8  0x00007fffeec0b60a in start_thread () from /lib64/libpthread.so.0
#9  0x00007fffef8d3a4d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7ffff7ee4940 (LWP 15607)):
[KCrash Handler]
#5  0x00007fffd5285955 in brw_meta_fast_clear () from /usr/lib64/dri/i965_dri.so
#6  0x00007fffd52711f8 in brw_clear () from /usr/lib64/dri/i965_dri.so
#7  0x00007ffff53f3bea in QSGBatchRenderer::Renderer::renderBatches() () from /lib64/libQt5Quick.so.5
#8  0x00007ffff53f95d2 in QSGBatchRenderer::Renderer::render() () from /lib64/libQt5Quick.so.5
#9  0x00007ffff54052cf in QSGRenderer::renderScene(QSGBindable const&) () from /lib64/libQt5Quick.so.5
#10 0x00007ffff5405b1b in QSGRenderer::renderScene(unsigned int) () from /lib64/libQt5Quick.so.5
#11 0x00007ffff5415fee in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /lib64/libQt5Quick.so.5
#12 0x00007ffff545ffcb in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /lib64/libQt5Quick.so.5
#13 0x00007ffff543099b in QSGGuiThreadRenderLoop::renderWindow(QQuickWindow*) () from /lib64/libQt5Quick.so.5
#14 0x00007ffff5431aa1 in QSGGuiThreadRenderLoop::event(QEvent*) () from /lib64/libQt5Quick.so.5
#15 0x00007ffff1c6541c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#16 0x00007ffff1c6a8e6 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#17 0x00007ffff06b173b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#18 0x00007ffff0706ccd in QTimerInfoList::activateTimers() () from /lib64/libQt5Core.so.5
#19 0x00007ffff0707209 in idleTimerSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5Core.so.5
#20 0x00007fffeadebe3a in g_main_dispatch (context=0x7fffd80016f0) at gmain.c:3154
#21 g_main_context_dispatch (context=context@entry=0x7fffd80016f0) at gmain.c:3769
#22 0x00007fffeadec1d0 in g_main_context_iterate (context=context@entry=0x7fffd80016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3840
#23 0x00007fffeadec27c in g_main_context_iteration (context=0x7fffd80016f0, may_block=1) at gmain.c:3901
#24 0x00007ffff0707eaf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#25 0x00007ffff06aeeca in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib64/libQt5Core.so.5
#26 0x00007ffff06b6fac in QCoreApplication::exec() () from /lib64/libQt5Core.so.5
#27 0x000055555558908a in main ()

Possible duplicates by query: bug 358969, bug 358809, bug 358349, bug 357730, bug 356707.

Reported using DrKonqi