Bug 292290

Application: systemsettings (1.0)
KDE Platform Version: 4.7.3 (4.7.3)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic x86_64
Distribution: Ubuntu 11.10

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

* In a local printer's profile, printer's options tab, modify any settings,
* Click "Overall View" button => Dialog appears prompting to Save, Discard, or Cancel.
* Click "Discard" changes.
* System Settings global view briefly reappears and then the application crashes (Segmentation Fault).

The crash can be reproduced every time.

-- Backtrace:
Application: Configuration du système (systemsettings), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fb7b3588780 (LWP 4128))]

Thread 2 (Thread 0x7fb79dd6b700 (LWP 4129)):
#0  0x00007fb7b0a51773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb7ae30ef68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb7ae30f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb7b11b9f3e in QEventDispatcherGlib::processEvents (this=0xe36290, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fb7b118dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fb7b118def7 in QEventLoop::exec (this=0x7fb79dd6add0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fb7b10a527f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007fb7b1170cbf in QInotifyFileSystemWatcherEngine::run (this=0xe32570) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fb7b10a7d05 in QThreadPrivate::start (arg=0xe32570) at thread/qthread_unix.cpp:331
#9  0x00007fb7ae7e0efc in start_thread (arg=0x7fb79dd6b700) at pthread_create.c:304
#10 0x00007fb7b0a5d89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb7b3588780 (LWP 4128)):
[KCrash Handler]
#6  0x00007fb79c0db0f5 in QHash<void*, PyQtProxy*>::duplicateNode(QHashData::Node*, void*) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#7  0x00007fb7b10c3637 in QHashData::detach_helper2 (this=0x145a9f0, node_duplicate=0x7fb79c0db0f0 <QHash<void*, PyQtProxy*>::duplicateNode(QHashData::Node*, void*)>, node_delete=0x7fb79c0db0e0 <QHash<void*, PyQtProxy*>::deleteNode2(QHashData::Node*)>, nodeSize=<optimized out>, nodeAlign=8) at tools/qhash.cpp:235
#8  0x00007fb79c0dfca7 in sipQtFindSipslot () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#9  0x00007fb79bd5271e in sipWrapper_traverse (arg=0x0, visit=0x7fb79cf98620 <visit_decref>, self=0x13b1170) at /build/buildd/sip4-4.12.4/siplib/siplib.c:9648
#10 sipWrapper_traverse (self=0x13b1170, visit=0x7fb79cf98620 <visit_decref>, arg=0x0) at /build/buildd/sip4-4.12.4/siplib/siplib.c:9629
#11 0x00007fb79cf988c7 in subtract_refs (containers=0x7fb79d318c80) at ../Modules/gcmodule.c:345
#12 collect (generation=2) at ../Modules/gcmodule.c:874
#13 0x00007fb79cf995e4 in PyGC_Collect () at ../Modules/gcmodule.c:1386
#14 0x00007fb79cf85aa6 in Py_Finalize () at ../Python/pythonrun.c:437
#15 Py_Finalize () at ../Python/pythonrun.c:393
#16 0x00007fb79d3659e5 in KPythonPluginFactory::~KPythonPluginFactory (this=0xe3fb00, __in_chrg=<optimized out>) at ../../kpythonpluginfactory/kpythonpluginfactory.cpp:262
#17 0x00007fb79d365a49 in KPythonPluginFactory::~KPythonPluginFactory (this=0xe3fb00, __in_chrg=<optimized out>) at ../../kpythonpluginfactory/kpythonpluginfactory.cpp:268
#18 0x00007fb7b11a7926 in QObjectCleanupHandler::clear (this=0xd5f040) at kernel/qobjectcleanuphandler.cpp:140
#19 0x00007fb7b11a796b in QObjectCleanupHandler::~QObjectCleanupHandler (this=0xd5f040, __in_chrg=<optimized out>) at kernel/qobjectcleanuphandler.cpp:86
#20 0x00007fb7b11a79b9 in QObjectCleanupHandler::~QObjectCleanupHandler (this=0xd5f040, __in_chrg=<optimized out>) at kernel/qobjectcleanuphandler.cpp:87
#21 0x00007fb7b09b7821 in __run_exit_handlers (status=1, listp=0x7fb7b0d145a8, run_list_atexit=true) at exit.c:78
#22 0x00007fb7b09b78a5 in __GI_exit (status=<optimized out>) at exit.c:100
#23 0x00007fb795dd7b9e in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
#24 0x00007fb7afdb506f in _XError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#25 0x00007fb7afdb1e21 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#26 0x00007fb7afdb2d77 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#27 0x00007fb7afd9734b in XGetWindowProperty () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#28 0x00007fb7b2c5e70b in NETWinInfo::update (this=0x7fff4d983780, dirty_props=<optimized out>) at ../../kdeui/windowmanagement/netwm.cpp:3962
#29 0x00007fb7b2c5fed6 in NETWinInfo::event (this=0x7fff4d983780, event=0x7fff4d983830, properties=0x7fff4d983750, properties_size=2) at ../../kdeui/windowmanagement/netwm.cpp:3925
#30 0x00007fb7b2c54fb8 in KWindowSystemPrivate::x11Event (this=0x28732b0, ev=0x7fff4d983830) at ../../kdeui/windowmanagement/kwindowsystem_x11.cpp:198
#31 0x00007fb7b2b450a6 in publicX11Event (e=0x7fff4d983830, this=<optimized out>) at ../../kdeui/kernel/ksystemeventfilter.cpp:43
#32 KSystemEventFilterPrivate::filterEvent (this=0x283d250, message=0x7fff4d983830) at ../../kdeui/kernel/ksystemeventfilter.cpp:102
#33 0x00007fb7b1eb0388 in x11EventSourceDispatch (s=0xa8dd60, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:143
#34 0x00007fb7ae30ea5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fb7ae30f258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fb7ae30f429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fb7b11b9ed6 in QEventDispatcherGlib::processEvents (this=0xa57a10, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#38 0x00007fb7b1eb007e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007fb7b118dcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007fb7b118def7 in QEventLoop::exec (this=0x7fff4d983c00, flags=...) at kernel/qeventloop.cpp:201
#41 0x00007fb7b1192789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#42 0x000000000040a7d5 in main (argc=5, argv=0x7fff4d983f38) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 292205, bug 291668, bug 289394, bug 289267, bug 289067.

Reported using DrKonqi