Bug 350796

Application: systemsettings5 (5.3.2)

Qt Version: 5.4.2
Operating System: Linux 4.0.0-2-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
- What I was doing when the application crashed:
Clicking on File associations.

Note: Latest Crash Reporting Assistant doesn't let me link this bug report to ones its a duplicate of.

-- 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 0x7f39f0535780 (LWP 14220))]

Thread 6 (Thread 0x7f39ed668700 (LWP 14264)):
#0  0x00007f39fc73e53d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f39fa1f9252 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f39fa1faddf in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f39f0465aa9 in QXcbEventReader::run() (this=0x755830) at qxcbconnection.cpp:1105
#4  0x00007f39fcdb987e in QThreadPrivate::start(void*) (arg=0x755830) at thread/qthread_unix.cpp:337
#5  0x00007f39f99830a4 in start_thread (arg=0x7f39ed668700) at pthread_create.c:309
#6  0x00007f39fc74707d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f39e0c0d700 (LWP 19755)):
#0  0x00007f39fc73e53d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f39f9463ebc in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f39dc003070, timeout=-1, context=0x7f39dc0009b0) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:4103
#2  0x00007f39f9463ebc in g_main_context_iterate (context=context@entry=0x7f39dc0009b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3803
#3  0x00007f39f9463fcc in g_main_context_iteration (context=0x7f39dc0009b0, may_block=1) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
#4  0x00007f39fd00235c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f39dc0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f39fcfa6b62 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f39e0c0ce20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f39fcdb48b4 in QThread::exec() (this=this@entry=0xb58360) at thread/qthread.cpp:503
#7  0x00007f39fb7a2f05 in QQmlThreadPrivate::run() (this=0xb58360) at qml/ftw/qqmlthread.cpp:141
#8  0x00007f39fcdb987e in QThreadPrivate::start(void*) (arg=0xb58360) at thread/qthread_unix.cpp:337
#9  0x00007f39f99830a4 in start_thread (arg=0x7f39e0c0d700) at pthread_create.c:309
#10 0x00007f39fc74707d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f39cfd8f700 (LWP 26263)):
#0  0x00007f39f94636f1 in g_main_context_query (context=context@entry=0x7f39c8000990, max_priority=2147483647, timeout=timeout@entry=0x7f39cfd8ece4, fds=fds@entry=0x7f39c8003070, n_fds=n_fds@entry=1) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3557
#1  0x00007f39f9463e37 in g_main_context_iterate (context=context@entry=0x7f39c8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3790
#2  0x00007f39f9463fcc in g_main_context_iteration (context=0x7f39c8000990, may_block=1) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
#3  0x00007f39fd00235c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f39c80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f39fcfa6b62 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f39cfd8ee20, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f39fcdb48b4 in QThread::exec() (this=this@entry=0xdca630) at thread/qthread.cpp:503
#6  0x00007f39fb7a2f05 in QQmlThreadPrivate::run() (this=0xdca630) at qml/ftw/qqmlthread.cpp:141
#7  0x00007f39fcdb987e in QThreadPrivate::start(void*) (arg=0xdca630) at thread/qthread_unix.cpp:337
#8  0x00007f39f99830a4 in start_thread (arg=0x7f39cfd8f700) at pthread_create.c:309
#9  0x00007f39fc74707d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f39c1f8e700 (LWP 693)):
#0  0x00007f39f5444f45 in  () at /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.340.76
#1  0x00007f39f94a7280 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f39c1f8dc30, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  0x00007f39f94a7280 in g_wakeup_acknowledge (wakeup=0x7f39b0002010) at /tmp/buildd/glib2.0-2.44.1/./glib/gwakeup.c:210
#3  0x00007f39f946396c in g_main_context_check (context=context@entry=0x7f39b00e5500, max_priority=2147483647, fds=fds@entry=0x7f39b0001330, n_fds=n_fds@entry=1) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3600
#4  0x00007f39f9463e60 in g_main_context_iterate (context=context@entry=0x7f39b00e5500, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3805
#5  0x00007f39f9463fcc in g_main_context_iteration (context=0x7f39b00e5500, may_block=1) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
#6  0x00007f39fd00235c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f39b0049e10, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#7  0x00007f39fcfa6b62 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f39c1f8de40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007f39fcdb48b4 in QThread::exec() (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007f39fcdb987e in QThreadPrivate::start(void*) (arg=0x1c79f40) at thread/qthread_unix.cpp:337
#10 0x00007f39f99830a4 in start_thread (arg=0x7f39c1f8e700) at pthread_create.c:309
#11 0x00007f39fc74707d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f39d2303700 (LWP 4763)):
#0  0x00007f39f94a8734 in g_mutex_unlock (mutex=0x2526f50) at /tmp/buildd/glib2.0-2.44.1/./glib/gthread-posix.c:1350
#1  0x00007f39f9463852 in g_main_context_check (context=context@entry=0x2526f50, max_priority=2147483647, fds=fds@entry=0x7f39b4452370, n_fds=n_fds@entry=1) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3716
#2  0x00007f39f9463e60 in g_main_context_iterate (context=0x2526f50, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3805
#3  0x00007f39f9464242 in g_main_loop_run (loop=0x2526ee0) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:4002
#4  0x00007f39aa71daf6 in gdbus_shared_thread_func (user_data=0x2526f20) at /tmp/buildd/glib2.0-2.44.1/./gio/gdbusprivate.c:274
#5  0x00007f39f948a955 in g_thread_proxy (data=0x2529450) at /tmp/buildd/glib2.0-2.44.1/./glib/gthread.c:764
#6  0x00007f39f99830a4 in start_thread (arg=0x7f39d2303700) at pthread_create.c:309
#7  0x00007f39fc74707d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f39f0535780 (LWP 14220)):
[KCrash Handler]
#6  0x00007f39fce4d4f8 in operator==(QString const&, QString const&) (s1=..., s2=...) at tools/qstring.cpp:2521
#7  0x00007f39fd039573 in QMimeBinaryProvider::loadMimeTypePrivate(QMimeTypePrivate&) (s2=..., s1=...) at ../../include/QtCore/../../src/corelib/tools/qstring.h:587
#8  0x00007f39fd039573 in QMimeBinaryProvider::loadMimeTypePrivate(QMimeTypePrivate&) (this=<optimized out>, data=...) at mimetypes/qmimeprovider.cpp:626
#9  0x00007f39fd02c45b in QMimeType::comment() const (this=0x21507a0) at mimetypes/qmimetype.cpp:223
#10 0x00007f39a9df478e in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_filetypes.so
#11 0x00007f39a9df5fa0 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_filetypes.so
#12 0x00007f39a9df1899 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_filetypes.so
#13 0x00007f39a9deb4f2 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_filetypes.so
#14 0x00007f39a9deb838 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/kcm_filetypes.so
#15 0x00007f39ff1564e9 in  () at /usr/lib/x86_64-linux-gnu/libKF5ConfigWidgets.so.5
#16 0x00007f39fcfdae8a in QObject::event(QEvent*) (this=this@entry=0x205e180, e=e@entry=0x2bc0520) at kernel/qobject.cpp:1245
#17 0x00007f39fe47a2f7 in QWidget::event(QEvent*) (this=0x205e180, event=0x2bc0520) at kernel/qwidget.cpp:9084
#18 0x00007f39fe436adc in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x7266a0, receiver=receiver@entry=0x205e180, e=e@entry=0x2bc0520) at kernel/qapplication.cpp:3720
#19 0x00007f39fe43bfb0 in QApplication::notify(QObject*, QEvent*) (this=0x7ffc93336c70, receiver=0x205e180, e=0x2bc0520) at kernel/qapplication.cpp:3503
#20 0x00007f39fcfa93ab in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffc93336c70, receiver=0x205e180, event=event@entry=0x2bc0520) at kernel/qcoreapplication.cpp:935
#21 0x00007f39fcfab41b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x2bc0520, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#22 0x00007f39fcfab41b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x7258f0) at kernel/qcoreapplication.cpp:1552
#23 0x00007f39fcfaba18 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#24 0x00007f39fd001f33 in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x7a3f50) at kernel/qeventdispatcher_glib.cpp:271
#25 0x00007f39f9463c3d in g_main_context_dispatch (context=0x7f39e8001710) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3122
#26 0x00007f39f9463c3d in g_main_context_dispatch (context=context@entry=0x7f39e8001710) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3737
#27 0x00007f39f9463f20 in g_main_context_iterate (context=context@entry=0x7f39e8001710, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3808
#28 0x00007f39f9463fcc in g_main_context_iteration (context=0x7f39e8001710, may_block=1) at /tmp/buildd/glib2.0-2.44.1/./glib/gmain.c:3869
#29 0x00007f39fd002347 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7a7b10, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#30 0x00007f39fcfa6b62 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffc93336b50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#31 0x00007f39fcfae7ac in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1188
#32 0x000000000040f09b in main ()

Possible duplicates by query: bug 349295.

Reported using DrKonqi