Application: kmix (4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic-pae i686
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
Kmix application crashes after  testing and configuring Akregator system notifications.  I tested 6-7  ogg files shipped with kde, built in system. 2 of them are crashes the kmix.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1bb5740 (LWP 2756))]

Thread 2 (Thread 0xa64cab40 (LWP 2861)):
#0  0xb2f9ec70 in __pthread_mutex_unlock_usercnt () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb7674634 in pthread_mutex_unlock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2e623d0 in g_mutex_unlock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2e22755 in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2e22f6f in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb2e231c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb5c228e7 in QEventDispatcherGlib::processEvents (this=0xa5b00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb5bee50d in QEventLoop::processEvents (this=0xa64ca240, flags=...) at kernel/qeventloop.cpp:149
#8  0xb5bee7a9 in QEventLoop::exec (this=0xa64ca240, flags=...) at kernel/qeventloop.cpp:204
#9  0xb5ad794c in QThread::exec (this=0x9a28f28) at thread/qthread.cpp:501
#10 0xb5bcbb5d in QInotifyFileSystemWatcherEngine::run (this=0x9a28f28) at io/qfilesystemwatcher_inotify.cpp:248
#11 0xb5adade0 in QThreadPrivate::start (arg=0x9a28f28) at thread/qthread_unix.cpp:298
#12 0xb2f9bd4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#13 0xb7666ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb1bb5740 (LWP 2756)):
[KCrash Handler]
#7  0x00000000 in ?? ()
#8  0xb7788f78 in MDWSlider::update (this=0x9a1f618) at ../../kmix/gui/mdwslider.cpp:1001
#9  0xb7783c23 in ViewDockAreaPopup::refreshVolumeLevels (this=0x9a1ef50) at ../../kmix/gui/viewdockareapopup.cpp:168
#10 0xb7780913 in qt_static_metacall (_a=0xbfd1e830, _id=3, _o=0x9a1ef50, _c=<optimized out>) at ./viewbase.moc:64
#11 ViewBase::qt_static_metacall (_o=0x9a1ef50, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbfd1e830) at ./viewbase.moc:55
#12 0xb5c066b1 in QMetaObject::activate (sender=0x9a788a8, m=0xb77c4d48, local_signal_index=1, argv=0x0) at kernel/qobject.cpp:3547
#13 0xb77a3c75 in Mixer::controlChanged (this=0x9a788a8) at ./mixer.moc:117
#14 0xb5c066b1 in QMetaObject::activate (sender=0x9a046a0, m=0xb77c2c44, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#15 0xb7758ea5 in Mixer_Backend::controlChanged (this=0x9a046a0) at ./mixer_backend.moc:107
#16 0xb77591a8 in Mixer_Backend::readSetFromHW (this=0x9a046a0) at ../../kmix/backends/mixer_backend.cpp:155
#17 0xb776612a in Mixer_PULSE::triggerUpdate (this=0x9a046a0) at ../../kmix/backends/mixer_pulse.cpp:1286
#18 0xb776a47d in sink_cb (c=0x9b07070, i=0x0, eol=1) at ../../kmix/backends/mixer_pulse.cpp:191
#19 0xb6b8fb45 in ?? () from /usr/lib/i386-linux-gnu/libpulse.so.0
#20 0xb2f4eeed in ?? () from /usr/lib/i386-linux-gnu/libpulsecommon-1.1.so
#21 0xb2f4f2f0 in pa_pdispatch_run () from /usr/lib/i386-linux-gnu/libpulsecommon-1.1.so
#22 0xb6b83a1d in ?? () from /usr/lib/i386-linux-gnu/libpulse.so.0
#23 0xb2f548c3 in ?? () from /usr/lib/i386-linux-gnu/libpulsecommon-1.1.so
#24 0xb2f3ec28 in ?? () from /usr/lib/i386-linux-gnu/libpulsecommon-1.1.so
#25 0xb6b72a3a in ?? () from /usr/lib/i386-linux-gnu/libpulse-mainloop-glib.so.0
#26 0xb2e22cda in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb2e230e5 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#28 0xb2e231c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#29 0xb5c22887 in QEventDispatcherGlib::processEvents (this=0x97a9ea0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#30 0xb6291aaa in QGuiEventDispatcherGlib::processEvents (this=0x97a9ea0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#31 0xb5bee50d in QEventLoop::processEvents (this=0xbfd1f364, flags=...) at kernel/qeventloop.cpp:149
#32 0xb5bee7a9 in QEventLoop::exec (this=0xbfd1f364, flags=...) at kernel/qeventloop.cpp:204
#33 0xb5bf3eba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#34 0xb61d6a74 in QApplication::exec () at kernel/qapplication.cpp:3820
#35 0xb777279b in kdemain (argc=3, argv=0xbfd1f5c4) at ../../kmix/apps/main.cpp:76
#36 0x0804850b in main (argc=3, argv=0xbfd1f5c4) at kmix_dummy.cpp:3

Possible duplicates by query: bug 300839, bug 300767, bug 300695, bug 300663, bug 300623.

Reported using DrKonqi