Bug 320296

Application: systemsettings (1.0)
KDE Platform Version: 4.10.3
Qt Version: 4.8.4
Operating System: Linux 3.8.0-22-generic x86_64
Distribution: Ubuntu 13.04

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

- when checking several settings in "system settings" and leaving "appearence submenu". crash occurs

The crash can be reproduced sometimes.

-- Backtrace:
Application: Systemeinstellungen (systemsettings), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f93997297c0 (LWP 3245))]

Thread 3 (Thread 0x7f937c25a700 (LWP 3246)):
#0  __pthread_mutex_unlock_usercnt (mutex=0x7f9374000a60, decr=1) at pthread_mutex_unlock.c:58
#1  0x00007f938f7975f1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f938f7578f3 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f938f7580fe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f938f758304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9396eab036 in QEventDispatcherGlib::processEvents (this=0x7f93740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f9396e7b38f in QEventLoop::processEvents (this=this@entry=0x7f937c259d90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f9396e7b618 in QEventLoop::exec (this=this@entry=0x7f937c259d90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f9396d7d410 in QThread::exec (this=this@entry=0x29e9c60) at thread/qthread.cpp:542
#9  0x00007f9396e5cedf in QInotifyFileSystemWatcherEngine::run (this=0x29e9c60) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x00007f9396d7fbec in QThreadPrivate::start (arg=0x29e9c60) at thread/qthread_unix.cpp:338
#11 0x00007f938fc2af8e in start_thread (arg=0x7f937c25a700) at pthread_create.c:311
#12 0x00007f9396732e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7f9373fff700 (LWP 3275)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9393ff3e77 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f9393ff3ea9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f938fc2af8e in start_thread (arg=0x7f9373fff700) at pthread_create.c:311
#4  0x00007f9396732e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7f93997297c0 (LWP 3245)):
[KCrash Handler]
#6  0x00007f939325c944 in QDeclarativeItem::~QDeclarativeItem (this=0x2e43f80, __in_chrg=<optimized out>) at graphicsitems/qdeclarativeitem.cpp:1668
#7  0x00007f939322110e in ~QDeclarativeElement (this=0x2e43f80, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#8  QDeclarativePrivate::QDeclarativeElement<QDeclarativeItem>::~QDeclarativeElement (this=0x2e43f80, __in_chrg=<optimized out>) at ../../include/QtDeclarative/../../src/declarative/qml/qdeclarativeprivate.h:87
#9  0x00007f9396e965e8 in QObject::event (this=0x2e43f80, e=<optimized out>) at kernel/qobject.cpp:1175
#10 0x00007f9397ae08ec in QApplicationPrivate::notify_helper (this=this@entry=0x25cd1f0, receiver=receiver@entry=0x2e43f80, e=e@entry=0x2880980) at kernel/qapplication.cpp:4567
#11 0x00007f9397ae325b in QApplication::notify (this=this@entry=0x7fffe719ea50, receiver=receiver@entry=0x2e43f80, e=e@entry=0x2880980) at kernel/qapplication.cpp:4428
#12 0x00007f93987edaf6 in KApplication::notify (this=0x7fffe719ea50, receiver=0x2e43f80, event=0x2880980) at ../../kdeui/kernel/kapplication.cpp:311
#13 0x00007f9396e7c63e in QCoreApplication::notifyInternal (this=0x7fffe719ea50, receiver=receiver@entry=0x2e43f80, event=event@entry=0x2880980) at kernel/qcoreapplication.cpp:946
#14 0x00007f9396e80171 in sendEvent (event=0x2880980, receiver=0x2e43f80) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x25741f0) at kernel/qcoreapplication.cpp:1570
#16 0x00007f9396e804a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#17 0x00007f9396eaae83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=0x25c91d0) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f938f757f05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f938f758248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f938f758304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f9396eab016 in QEventDispatcherGlib::processEvents (this=0x2575ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f9397b861ae in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f9396e7b38f in QEventLoop::processEvents (this=this@entry=0x7fffe719e930, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f9396e7b618 in QEventLoop::exec (this=this@entry=0x7fffe719e930, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f9396e80cf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#27 0x000000000040aa2e in ?? ()
#28 0x00007f939665aea5 in __libc_start_main (main=0x40a6d0, argc=5, ubp_av=0x7fffe719eb98, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffe719eb88) at libc-start.c:260
#29 0x000000000040aa85 in _start ()

Possible duplicates by query: bug 320250, bug 320120, bug 319982, bug 319217, bug 317406.

Reported using DrKonqi