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:
When beeper sounds, kmix crashes. And it repeats on next beep sound... etc...

The crash can be reproduced every 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 0xb1b50740 (LWP 1843))]

Thread 3 (Thread 0xaa3e6b40 (LWP 1845)):
#0  0xb7763424 in __kernel_vsyscall ()
#1  0xb75f3380 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2dcba3b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2dbe06e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2dbe1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5bbd8e7 in QEventDispatcherGlib::processEvents (this=0xa9a00468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb5b8950d in QEventLoop::processEvents (this=0xaa3e6240, flags=...) at kernel/qeventloop.cpp:149
#7  0xb5b897a9 in QEventLoop::exec (this=0xaa3e6240, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5a7294c in QThread::exec (this=0xa0a79d8) at thread/qthread.cpp:501
#9  0xb5b66b5d in QInotifyFileSystemWatcherEngine::run (this=0xa0a79d8) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb5a75de0 in QThreadPrivate::start (arg=0xa0a79d8) at thread/qthread_unix.cpp:298
#11 0xb2f36d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb7601ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xa59feb40 (LWP 1944)):
#0  0xb2f38dc8 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb760f5f4 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2dfd390 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2dbd0c9 in g_main_context_acquire () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2dbdf18 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb2dbe1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb5bbd8e7 in QEventDispatcherGlib::processEvents (this=0xa5000468, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb5b8950d in QEventLoop::processEvents (this=0xa59fe240, flags=...) at kernel/qeventloop.cpp:149
#8  0xb5b897a9 in QEventLoop::exec (this=0xa59fe240, flags=...) at kernel/qeventloop.cpp:204
#9  0xb5a7294c in QThread::exec (this=0xa1eeb78) at thread/qthread.cpp:501
#10 0xb5b66b5d in QInotifyFileSystemWatcherEngine::run (this=0xa1eeb78) at io/qfilesystemwatcher_inotify.cpp:248
#11 0xb5a75de0 in QThreadPrivate::start (arg=0xa1eeb78) at thread/qthread_unix.cpp:298
#12 0xb2f36d4c in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#13 0xb7601ace in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb1b50740 (LWP 1843)):
[KCrash Handler]
#7  0x0073006c in ?? ()
#8  0xb7723f78 in MDWSlider::update (this=0xa1e5d98) at ../../kmix/gui/mdwslider.cpp:1001
#9  0xb771ec23 in ViewDockAreaPopup::refreshVolumeLevels (this=0xa1e5660) at ../../kmix/gui/viewdockareapopup.cpp:168
#10 0xb771b913 in qt_static_metacall (_a=0xbff9ee50, _id=3, _o=0xa1e5660, _c=<optimized out>) at ./viewbase.moc:64
#11 ViewBase::qt_static_metacall (_o=0xa1e5660, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbff9ee50) at ./viewbase.moc:55
#12 0xb5ba16b1 in QMetaObject::activate (sender=0xa1730d0, m=0xb775fd48, local_signal_index=1, argv=0x0) at kernel/qobject.cpp:3547
#13 0xb773ec75 in Mixer::controlChanged (this=0xa1730d0) at ./mixer.moc:117
#14 0xb5ba16b1 in QMetaObject::activate (sender=0xa1b3cf0, m=0xb775dc44, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3547
#15 0xb76f3ea5 in Mixer_Backend::controlChanged (this=0xa1b3cf0) at ./mixer_backend.moc:107
#16 0xb76f41a8 in Mixer_Backend::readSetFromHW (this=0xa1b3cf0) at ../../kmix/backends/mixer_backend.cpp:155
#17 0xb770112a in Mixer_PULSE::triggerUpdate (this=0xa1b3cf0) at ../../kmix/backends/mixer_pulse.cpp:1286
#18 0xb770547d in sink_cb (c=0xa222968, i=0x0, eol=1) at ../../kmix/backends/mixer_pulse.cpp:191
#19 0xb6b2ab45 in ?? () from /usr/lib/i386-linux-gnu/libpulse.so.0
#20 0xb2ee9eed in ?? () from /usr/lib/i386-linux-gnu/libpulsecommon-1.1.so
#21 0xb2eea2f0 in pa_pdispatch_run () from /usr/lib/i386-linux-gnu/libpulsecommon-1.1.so
#22 0xb6b1ea1d in ?? () from /usr/lib/i386-linux-gnu/libpulse.so.0
#23 0xb2eef8c3 in ?? () from /usr/lib/i386-linux-gnu/libpulsecommon-1.1.so
#24 0xb2ed9c28 in ?? () from /usr/lib/i386-linux-gnu/libpulsecommon-1.1.so
#25 0xb6b0da3a in ?? () from /usr/lib/i386-linux-gnu/libpulse-mainloop-glib.so.0
#26 0xb2dbdcda in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#27 0xb2dbe0e5 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#28 0xb2dbe1c1 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#29 0xb5bbd887 in QEventDispatcherGlib::processEvents (this=0x9ecbeb8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#30 0xb622caaa in QGuiEventDispatcherGlib::processEvents (this=0x9ecbeb8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#31 0xb5b8950d in QEventLoop::processEvents (this=0xbff9f984, flags=...) at kernel/qeventloop.cpp:149
#32 0xb5b897a9 in QEventLoop::exec (this=0xbff9f984, flags=...) at kernel/qeventloop.cpp:204
#33 0xb5b8eeba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#34 0xb6171a74 in QApplication::exec () at kernel/qapplication.cpp:3820
#35 0xb770d79b in kdemain (argc=3, argv=0xbff9fbe4) at ../../kmix/apps/main.cpp:76
#36 0x0804850b in main (argc=3, argv=0xbff9fbe4) at kmix_dummy.cpp:3

Possible duplicates by query: bug 300695, bug 300663, bug 300623, bug 300602, bug 300374.

Reported using DrKonqi