Application: kcmshell4 ()
KDE Platform Version: 4.7.2 (4.7.2) (Compiled from sources)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic i686
Distribution: Ubuntu 11.10

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

Tried to open configs for Mic in PulseAudio Mixer, but received crash.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KDE Control Module (kcmshell4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb76f7980 (LWP 2307))]

Thread 3 (Thread 0xb0f63b70 (LWP 2313)):
#0  0x00cd4d44 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0x001eff54 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0x07c02785 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x07c02c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x01173b37 in QEventDispatcherGlib::processEvents (this=0x95f8508, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x011441dd in QEventLoop::processEvents (this=0xb0f63200, flags=...) at kernel/qeventloop.cpp:149
#6  0x01144421 in QEventLoop::exec (this=0xb0f63200, flags=...) at kernel/qeventloop.cpp:201
#7  0x0104790b in QThread::exec (this=0x997f1d0) at thread/qthread.cpp:498
#8  0x01124e2d in QInotifyFileSystemWatcherEngine::run (this=0x997f1d0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x0104a7b3 in QThreadPrivate::start (arg=0x997f1d0) at thread/qthread_unix.cpp:331
#10 0x01b489cd in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa75feb70 (LWP 2314)):
#0  0x00367416 in __kernel_vsyscall ()
#1  0x001d340e in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x05381246 in ?? () from /usr/lib/i386-linux-gnu/libpulse.so.0
#3  0x0536f4ea in pa_mainloop_poll () from /usr/lib/i386-linux-gnu/libpulse.so.0
#4  0x0536fd47 in pa_mainloop_iterate () from /usr/lib/i386-linux-gnu/libpulse.so.0
#5  0x0536fe24 in pa_mainloop_run () from /usr/lib/i386-linux-gnu/libpulse.so.0
#6  0x053811ce in ?? () from /usr/lib/i386-linux-gnu/libpulse.so.0
#7  0x07e3d216 in ?? () from /usr/lib/i386-linux-gnu/libpulsecommon-1.0.so
#8  0x01b489cd in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x001e20ce in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb76f7980 (LWP 2307)):
[KCrash Handler]
#7  0x05377e0a in pa_stream_new_with_proplist () from /usr/lib/i386-linux-gnu/libpulse.so.0
#8  0x05377f5b in pa_stream_new () from /usr/lib/i386-linux-gnu/libpulse.so.0
#9  0x05a21f28 in AudioSetup::_createMonitorStreamForSource (this=0x953c958, source_idx=1) at ../../../phonon/kcm/audiosetup.cpp:871
#10 0x05a24779 in AudioSetup::deviceChanged (this=0x953c958) at ../../../phonon/kcm/audiosetup.cpp:749
#11 0x05a25bfd in AudioSetup::qt_metacall (this=0x953c958, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbfefee08) at ./audiosetup.moc:87
#12 0x0114bb7d in metacall (argv=0xbfefee08, idx=31, cl=QMetaObject::InvokeMetaMethod, object=0x953c958) at kernel/qmetaobject.cpp:237
#13 QMetaObject::metacall (object=0x953c958, cl=QMetaObject::InvokeMetaMethod, idx=31, argv=0xbfefee08) at kernel/qmetaobject.cpp:232
#14 0x0115aa6a in QMetaObject::activate (sender=0x997dbf0, m=0x74fc6c4, local_signal_index=5, argv=0xbfefee08) at kernel/qobject.cpp:3278
#15 0x06fe0605 in QComboBox::currentIndexChanged (this=0x997dbf0, _t1=1) at .moc/release-shared/moc_qcombobox.cpp:302
#16 0x06fe069f in QComboBoxPrivate::_q_emitCurrentIndexChanged (this=0x993d5e8, index=...) at widgets/qcombobox.cpp:1269
#17 0x06fe082f in QComboBoxPrivate::setCurrentIndex (this=0x993d5e8, mi=...) at widgets/qcombobox.cpp:2027
#18 0x06fe174e in QComboBoxPrivate::_q_itemSelected (this=0x993d5e8, item=...) at widgets/qcombobox.cpp:1238
#19 0x06fe5032 in QComboBox::qt_metacall (this=0x997dbf0, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0xbfeff058) at .moc/release-shared/moc_qcombobox.cpp:191
#20 0x005fc862 in KComboBox::qt_metacall (this=0x997dbf0, _c=QMetaObject::InvokeMetaMethod, _id=39, _a=0xbfeff058) at ./kcombobox.moc:106
#21 0x0114bb7d in metacall (argv=0xbfeff058, idx=39, cl=QMetaObject::InvokeMetaMethod, object=0x997dbf0) at kernel/qmetaobject.cpp:237
#22 QMetaObject::metacall (object=0x997dbf0, cl=QMetaObject::InvokeMetaMethod, idx=39, argv=0xbfeff058) at kernel/qmetaobject.cpp:232
#23 0x0115aa6a in QMetaObject::activate (sender=0x9b68c60, m=0x750b1c4, local_signal_index=0, argv=0xbfeff058) at kernel/qobject.cpp:3278
#24 0x072c5305 in QComboBoxPrivateContainer::itemSelected (this=0x9b68c60, _t1=...) at .moc/release-shared/moc_qcombobox_p.cpp:213
#25 0x06fdac0f in QComboBoxPrivateContainer::eventFilter (this=0x9b68c60, o=0x9b2bed0, e=0xbfeff114) at widgets/qcombobox.cpp:687
#26 0x01145336 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x94dc7b8, receiver=0x9b2bed0, event=0xbfeff4fc) at kernel/qcoreapplication.cpp:902
#27 0x06baed22 in notify_helper (e=0xbfeff4fc, receiver=0x9b2bed0, this=0x94dc7b8) at kernel/qapplication.cpp:4482
#28 QApplicationPrivate::notify_helper (this=0x94dc7b8, receiver=0x9b2bed0, e=0xbfeff4fc) at kernel/qapplication.cpp:4458
#29 0x06bb4dbb in QApplication::notify (this=0x94dc7b8, receiver=0x9b2bed0, e=0xbfeff4fc) at kernel/qapplication.cpp:4047
#30 0x0054f681 in KApplication::notify (this=0xbfeffd18, receiver=0x9b2bed0, event=0xbfeff4fc) at ../../kdeui/kernel/kapplication.cpp:311
#31 0x0114519e in QCoreApplication::notifyInternal (this=0xbfeffd18, receiver=0x9b2bed0, event=0xbfeff4fc) at kernel/qcoreapplication.cpp:787
#32 0x06bafd15 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#33 QApplicationPrivate::sendMouseEvent (receiver=0x9b2bed0, event=0xbfeff4fc, alienWidget=0x9b2bed0, nativeWidget=0x9b68c60, buttonDown=0x7519eb4, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#34 0x06c3c9fa in QETWidget::translateMouseEvent (this=0x9b68c60, event=0xbfeff97c) at kernel/qapplication_x11.cpp:4502
#35 0x06c3ae4d in QApplication::x11ProcessEvent (this=0xbfeffd18, event=0xbfeff97c) at kernel/qapplication_x11.cpp:3690
#36 0x06c6724c in x11EventSourceDispatch (s=0x94e0f00, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#37 0x07c0225f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#38 0x07c02990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#39 0x07c02c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#40 0x01173ada in QEventDispatcherGlib::processEvents (this=0x94c59d0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#41 0x06c66e3a in QGuiEventDispatcherGlib::processEvents (this=0x94c59d0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#42 0x011441dd in QEventLoop::processEvents (this=0xbfeffc80, flags=...) at kernel/qeventloop.cpp:149
#43 0x01144421 in QEventLoop::exec (this=0xbfeffc80, flags=...) at kernel/qeventloop.cpp:201
#44 0x070e67c9 in QDialog::exec (this=0x95ce3b0) at dialogs/qdialog.cpp:552
#45 0x00cf5a89 in kdemain (_argc=2, _argv=0xbfefffb4) at ../../kcmshell/main.cpp:292
#46 0x0804850b in main (argc=2, argv=0xbfefffb4) at kcmshell4_dummy.cpp:3

Reported using DrKonqi