Bug 375074

Application: plasmashell (5.7.5)

Qt Version: 5.6.1
Frameworks Version: 5.26.0
Operating System: Linux 4.9.0-ck1 x86_64
Distribution: Ubuntu 16.10

-- Information about the crash:
- What I was doing when the application crashed:

I had started a fish session in konqueror and set up to play a 1.5GB video via fish using mpv. While it was caching the file before starting mpv, it got stuck at 959MB. At that point I cicked on the kate icon on the taskbar that I had open and plasma crashed.

-- 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 0x7f1c62aaa8c0 (LWP 3946))]

Thread 7 (Thread 0x7f1b998cb700 (LWP 4511)):
#0  0x00007f1c5d3510bd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f1c5a0919d6 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f1b940044c0, timeout=<optimized out>, context=0x7f1b94000990) at ././glib/gmain.c:4226
#2  0x00007f1c5a0919d6 in g_main_context_iterate (context=context@entry=0x7f1b94000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3922
#3  0x00007f1c5a091aec in g_main_context_iteration (context=0x7f1b94000990, may_block=may_block@entry=1) at ././glib/gmain.c:3988
#4  0x00007f1c5dc7f4ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f1b940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f1c5dc270fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f1b998cacc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1c5da4cd43 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f1b9bdda5c7 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007f1c5da51c68 in QThreadPrivate::start(void*) (arg=0x55d316b6f490) at thread/qthread_unix.cpp:341
#9  0x00007f1c5cb316ca in start_thread (arg=0x7f1b998cb700) at pthread_create.c:333
#10 0x00007f1c5d35d0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 6 (Thread 0x7f1bad10a700 (LWP 4365)):
#0  0x00007f1c5d3510bd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f1c5a0919d6 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f1ba8003120, timeout=<optimized out>, context=0x7f1ba8000990) at ././glib/gmain.c:4226
#2  0x00007f1c5a0919d6 in g_main_context_iterate (context=context@entry=0x7f1ba8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3922
#3  0x00007f1c5a091aec in g_main_context_iteration (context=0x7f1ba8000990, may_block=may_block@entry=1) at ././glib/gmain.c:3988
#4  0x00007f1c5dc7f4ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f1ba80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f1c5dc270fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f1bad109c90, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1c5da4cd43 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f1c60cd7706 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007f1c5da51c68 in QThreadPrivate::start(void*) (arg=0x55d31449ba00) at thread/qthread_unix.cpp:341
#9  0x00007f1c5cb316ca in start_thread (arg=0x7f1bad10a700) at pthread_create.c:333
#10 0x00007f1c5d35d0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 5 (Thread 0x7f1c3a572700 (LWP 4069)):
#0  0x00007f1c5cb374d0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f1c62517574 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f1c625175b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f1c5cb316ca in start_thread (arg=0x7f1c3a572700) at pthread_create.c:333
#4  0x00007f1c5d35d0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 4 (Thread 0x7f1c3bfff700 (LWP 3985)):
#0  0x00007f1c5a08ea19 in g_source_iter_next (iter=iter@entry=0x7f1c3bffeb20, source=source@entry=0x7f1c3bffeb18) at ././glib/gmain.c:979
#1  0x00007f1c5a090e7b in g_main_context_prepare (context=context@entry=0x7f1c34000990, priority=priority@entry=0x7f1c3bffeba0) at ././glib/gmain.c:3477
#2  0x00007f1c5a0918fb in g_main_context_iterate (context=context@entry=0x7f1c34000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3907
#3  0x00007f1c5a091aec in g_main_context_iteration (context=0x7f1c34000990, may_block=may_block@entry=1) at ././glib/gmain.c:3988
#4  0x00007f1c5dc7f4ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f1c340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f1c5dc270fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f1c3bffece0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1c5da4cd43 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f1c6034fc65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f1c5da51c68 in QThreadPrivate::start(void*) (arg=0x55d313e28200) at thread/qthread_unix.cpp:341
#9  0x00007f1c5cb316ca in start_thread (arg=0x7f1c3bfff700) at pthread_create.c:333
#10 0x00007f1c5d35d0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 3 (Thread 0x7f1c462a9700 (LWP 3970)):
#0  0x00007f1c5a0d7009 in g_mutex_lock (mutex=mutex@entry=0x7f1c3c000990) at ././glib/gthread-posix.c:1336
#1  0x00007f1c5a0913d4 in g_main_context_check (context=context@entry=0x7f1c3c000990, max_priority=2147483647, fds=fds@entry=0x7f1c3c002e70, n_fds=n_fds@entry=1) at ././glib/gmain.c:3764
#2  0x00007f1c5a091974 in g_main_context_iterate (context=context@entry=0x7f1c3c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3924
#3  0x00007f1c5a091aec in g_main_context_iteration (context=0x7f1c3c000990, may_block=may_block@entry=1) at ././glib/gmain.c:3988
#4  0x00007f1c5dc7f4ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f1c3c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f1c5dc270fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f1c462a8ce0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1c5da4cd43 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:500
#7  0x00007f1c6034fc65 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f1c5da51c68 in QThreadPrivate::start(void*) (arg=0x55d313d148f0) at thread/qthread_unix.cpp:341
#9  0x00007f1c5cb316ca in start_thread (arg=0x7f1c462a9700) at pthread_create.c:333
#10 0x00007f1c5d35d0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7f1c50365700 (LWP 3948)):
#0  0x00007f1c5d3510bd in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f1c5a0919d6 in g_main_context_poll (priority=<optimized out>, n_fds=1, fds=0x7f1c48014810, timeout=<optimized out>, context=0x7f1c48001600) at ././glib/gmain.c:4226
#2  0x00007f1c5a0919d6 in g_main_context_iterate (context=context@entry=0x7f1c48001600, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3922
#3  0x00007f1c5a091aec in g_main_context_iteration (context=0x7f1c48001600, may_block=may_block@entry=1) at ././glib/gmain.c:3988
#4  0x00007f1c5dc7f4ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f1c480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f1c5dc270fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f1c50364cd0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f1c5da4cd43 in QThread::exec() (this=this@entry=0x7f1c62c5cd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:500
#7  0x00007f1c62be8575 in QDBusConnectionManager::run() (this=0x7f1c62c5cd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:171
#8  0x00007f1c5da51c68 in QThreadPrivate::start(void*) (arg=0x7f1c62c5cd60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:341
#9  0x00007f1c5cb316ca in start_thread (arg=0x7f1c50365700) at pthread_create.c:333
#10 0x00007f1c5d35d0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f1c62aaa8c0 (LWP 3946)):
[KCrash Handler]
#6  0x00007f1c391b72f7 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#7  0x00007f1c391890f3 in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#8  0x00007f1c60d0846a in QSGBatchRenderer::Renderer::renderBatches() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f1c60d0dea5 in QSGBatchRenderer::Renderer::render() () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f1c60d198ff in QSGRenderer::renderScene(QSGBindable const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f1c60d1a19b in QSGRenderer::renderScene(unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f1c60d2a55e in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#13 0x00007f1c60d7192e in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f1c60d40333 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007f1c60d41591 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007f1c5e5648ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x55d31435ae40, e=0x7ffe869d69a0) at kernel/qapplication.cpp:3804
#17 0x00007f1c5e569d4f in QApplication::notify(QObject*, QEvent*) (this=0x7ffe869d6d60, receiver=0x55d31435ae40, e=0x7ffe869d69a0) at kernel/qapplication.cpp:3561
#18 0x00007f1c5dc293b0 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x55d31435ae40, event=event@entry=0x7ffe869d69a0) at kernel/qcoreapplication.cpp:1015
#19 0x00007f1c5dc7e3ae in QCoreApplication::sendEvent(QObject*, QEvent*) (event=0x7ffe869d69a0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#20 0x00007f1c5dc7e3ae in QTimerInfoList::activateTimers() (this=0x55d313c7ead0) at kernel/qtimerinfo_unix.cpp:637
#21 0x00007f1c5dc7e8d1 in timerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:176
#22 0x00007f1c5a0917d7 in g_main_dispatch (context=0x7f1c480016f0) at ././glib/gmain.c:3201
#23 0x00007f1c5a0917d7 in g_main_context_dispatch (context=context@entry=0x7f1c480016f0) at ././glib/gmain.c:3854
#24 0x00007f1c5a091a40 in g_main_context_iterate (context=context@entry=0x7f1c480016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ././glib/gmain.c:3927
#25 0x00007f1c5a091aec in g_main_context_iteration (context=0x7f1c480016f0, may_block=may_block@entry=1) at ././glib/gmain.c:3988
#26 0x00007f1c5dc7f48f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x55d313c87280, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#27 0x00007f1c5dc270fa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffe869d6bf0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#28 0x00007f1c5dc2f90c in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1285
#29 0x000055d31341cf1f in  ()
#30 0x00007f1c5d2753f1 in __libc_start_main (main=0x55d31341c3b0, argc=2, argv=0x7ffe869d6f08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe869d6ef8) at ../csu/libc-start.c:291
#31 0x000055d31341d29a in _start ()

Reported using DrKonqi