Bug 346532

Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
I was in Systems Settings, switching the OpenGL version setting

-- 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 0x7ff7814e0780 (LWP 16634))]

Thread 4 (Thread 0x7ff76e8f7700 (LWP 16635)):
#0  0x00007ff77dc488dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff77bf62b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff77bf6464f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff77168a099 in QXcbEventReader::run (this=0xf5bd10) at qxcbconnection.cpp:1105
#4  0x00007ff77e2c9b0e in QThreadPrivate::start (arg=0xf5bd10) at thread/qthread_unix.cpp:337
#5  0x00007ff77ae7c6aa in start_thread (arg=0x7ff76e8f7700) at pthread_create.c:333
#6  0x00007ff77dc53eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7ff763920700 (LWP 16637)):
#0  0x00007ff77dc488dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff77a95debc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff77a95e242 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff76c377ae6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ff77a984955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff77ae7c6aa in start_thread (arg=0x7ff763920700) at pthread_create.c:333
#6  0x00007ff77dc53eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7ff76311f700 (LWP 16638)):
#0  0x00007ff77dc488dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff77a95debc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff77a95dfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff77a95e009 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff77a984955 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff77ae7c6aa in start_thread (arg=0x7ff76311f700) at pthread_create.c:333
#6  0x00007ff77dc53eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ff7814e0780 (LWP 16634)):
[KCrash Handler]
#6  0x00007ff77cd51d6b in QQuickItemPrivate::addToDirtyList() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007ff77cd51e28 in QQuickItemPrivate::dirty(QQuickItemPrivate::DirtyType) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007ff77cd5c045 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007ff77e53973a in QObject::event (this=0x1e607c0, e=<optimized out>) at kernel/qobject.cpp:1245
#10 0x00007ff77cd5ab6b in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007ff77f2f3b2c in QApplicationPrivate::notify_helper (this=0xf30550, receiver=0x1e607c0, e=0x7ff744143980) at kernel/qapplication.cpp:3720
#12 0x00007ff77f2f9000 in QApplication::notify (this=0x7fff9e640450, receiver=0x1e607c0, e=0x7ff744143980) at kernel/qapplication.cpp:3503
#13 0x00007ff77e507c2b in QCoreApplication::notifyInternal (this=0x7fff9e640450, receiver=0x1e607c0, event=event@entry=0x7ff744143980) at kernel/qcoreapplication.cpp:935
#14 0x00007ff77e509c9b in sendEvent (event=0x7ff744143980, 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=0xf2f770) at kernel/qcoreapplication.cpp:1552
#16 0x00007ff77e50a298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#17 0x00007ff77e560843 in postEventSourceDispatch (s=0xfd9880) at kernel/qeventdispatcher_glib.cpp:271
#18 0x00007ff77a95dc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007ff77a95df20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007ff77a95dfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007ff77e560c57 in QEventDispatcherGlib::processEvents (this=0xff5c20, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#22 0x00007ff77e5053e2 in QEventLoop::exec (this=this@entry=0x7fff9e640330, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#23 0x00007ff77e50d02c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#24 0x00007ff77ed2e31c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#25 0x00007ff77f2ef7a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#26 0x000000000040eebc in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:54

Reported using DrKonqi