Bug 349013

Application: systemsettings5 (5.3.1)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-20-lowlatency x86_64
Distribution: Ubuntu 15.04

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

I had just changed the settings from OpenGL 2.0 to OpenGL 3.1 and clicked on apply.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbe2ba5c780 (LWP 5499))]

Thread 3 (Thread 0x7fbe19267700 (LWP 5500)):
#0  0x00007fbe281d88dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbe264f2b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fbe264f464f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fbe1c033099 in QXcbEventReader::run (this=0x952a60) at qxcbconnection.cpp:1105
#4  0x00007fbe28859b0e in QThreadPrivate::start (arg=0x952a60) at thread/qthread_unix.cpp:337
#5  0x00007fbe2540c6aa in start_thread (arg=0x7fbe19267700) at pthread_create.c:333
#6  0x00007fbe281e3eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fbe08933700 (LWP 5505)):
#0  0x00007fbe281d449d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbe21354f45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fbe24f312f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbe24eed96c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbe24eede60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbe24eedfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fbe28af0c6c in QEventDispatcherGlib::processEvents (this=0x7fbe040008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007fbe28a953e2 in QEventLoop::exec (this=this@entry=0x7fbe08932e00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007fbe28854b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007fbe0ab9bcf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#10 0x00007fbe28859b0e in QThreadPrivate::start (arg=0xf15450) at thread/qthread_unix.cpp:337
#11 0x00007fbe2540c6aa in start_thread (arg=0x7fbe08933700) at pthread_create.c:333
#12 0x00007fbe281e3eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fbe2ba5c780 (LWP 5499)):
[KCrash Handler]
#6  0x00007fbe272e1d89 in QQuickItemPrivate::addToDirtyList() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fbe272e1e28 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fbe272ec045 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007fbe28ac973a in QObject::event (this=0x125b920, e=<optimized out>) at kernel/qobject.cpp:1245
#10 0x00007fbe272eab6b in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fbe29883b2c in QApplicationPrivate::notify_helper (this=0x925550, receiver=0x125b920, e=0x7fbdf01affe0) at kernel/qapplication.cpp:3720
#12 0x00007fbe29889000 in QApplication::notify (this=0x7ffee4897d40, receiver=0x125b920, e=0x7fbdf01affe0) at kernel/qapplication.cpp:3503
#13 0x00007fbe28a97c2b in QCoreApplication::notifyInternal (this=0x7ffee4897d40, receiver=0x125b920, event=event@entry=0x7fbdf01affe0) at kernel/qcoreapplication.cpp:935
#14 0x00007fbe28a99c9b in sendEvent (event=0x7fbdf01affe0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x924770) at kernel/qcoreapplication.cpp:1552
#16 0x00007fbe28a9a298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#17 0x00007fbe28af0843 in postEventSourceDispatch (s=0x996be0) at kernel/qeventdispatcher_glib.cpp:271
#18 0x00007fbe24eedc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fbe24eedf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fbe24eedfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fbe28af0c57 in QEventDispatcherGlib::processEvents (this=0x991b90, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#22 0x00007fbe28a953e2 in QEventLoop::exec (this=this@entry=0x7ffee4897c20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#23 0x00007fbe28a9d02c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#24 0x000000000040ef6b in main ()

Reported using DrKonqi