Application: kmix (4)
KDE Platform Version: 4.8.1 (4.8.1)
Qt Version: 4.8.0
Operating System: Linux 3.0.0-16-generic-pae i686
Distribution: Ubuntu 11.10

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

I plugged in my USB sound card, and kmix crashed. It's connected via a hub on my keyboard.

I didn't see a notification.

- Custom settings of the application:

The highest priority item in Phonon is my USB sound card, so it auto-switches.

I'm using focus follows mouse, if that matters.

The crash can be reproduced every time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
[Current thread is 1 (Thread 0xb056a730 (LWP 2858))]

Thread 3 (Thread 0xa8fe5b70 (LWP 2862)):
#0  0xb31c346b in __i686.get_pc_thunk.bx () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb31c6d8f in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb76202b4 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#3  0xb30478bb in g_main_context_prepare () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb3048637 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb3048c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0xb5c031c7 in QEventDispatcherGlib::processEvents (this=0xa1982a0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0xb5bced1d in QEventLoop::processEvents (this=0xa8fe51d0, flags=...) at kernel/qeventloop.cpp:149
#8  0xb5bcefb9 in QEventLoop::exec (this=0xa8fe51d0, flags=...) at kernel/qeventloop.cpp:204
#9  0xb5ab89dc in QThread::exec (this=0xa1a6868) at thread/qthread.cpp:501
#10 0xb5bac2dd in QInotifyFileSystemWatcherEngine::run (this=0xa1a6868) at io/qfilesystemwatcher_inotify.cpp:248
#11 0xb5abbe70 in QThreadPrivate::start (arg=0xa1a6868) at thread/qthread_unix.cpp:298
#12 0xb25e19cd in ?? () from /usr/lib/nvidia-current/libGL.so.1
#13 0xb761246e in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 2 (Thread 0xa47e3b70 (LWP 2866)):
#0  0xb776f424 in __kernel_vsyscall ()
#1  0xb76037ae in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb305734b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb3048896 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb3048c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5c031c7 in QEventDispatcherGlib::processEvents (this=0xa3464f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb5bced1d in QEventLoop::processEvents (this=0xa47e31d0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb5bcefb9 in QEventLoop::exec (this=0xa47e31d0, flags=...) at kernel/qeventloop.cpp:204
#8  0xb5ab89dc in QThread::exec (this=0xa345d30) at thread/qthread.cpp:501
#9  0xb5bac2dd in QInotifyFileSystemWatcherEngine::run (this=0xa345d30) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb5abbe70 in QThreadPrivate::start (arg=0xa345d30) at thread/qthread_unix.cpp:298
#11 0xb25e19cd in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0xb761246e in clone () from /lib/i386-linux-gnu/libc.so.6
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb056a730 (LWP 2858)):
[KCrash Handler]
#7  0x00430041 in ?? ()
#8  0xb7730978 in MDWSlider::update (this=0xa338668) at ../../kmix/gui/mdwslider.cpp:1001
#9  0xb772b6d3 in ViewDockAreaPopup::refreshVolumeLevels (this=0xa337f78) at ../../kmix/gui/viewdockareapopup.cpp:168
#10 0xb772841f in ViewBase::qt_metacall (this=0xa337f78, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbff23f80) at ./viewbase.moc:87
#11 0xb772b082 in ViewDockAreaPopup::qt_metacall (this=0xa337f78, _c=QMetaObject::InvokeMetaMethod, _id=30, _a=0xbff23f80) at ./viewdockareapopup.moc:73
#12 0xb5bd74ad in metacall (argv=0xbff23f80, idx=30, cl=QMetaObject::InvokeMetaMethod, object=0xa337f78) at kernel/qmetaobject.cpp:245
#13 QMetaObject::metacall (object=0xa337f78, cl=QMetaObject::InvokeMetaMethod, idx=30, argv=0xbff23f80) at kernel/qmetaobject.cpp:240
#14 0xb5be71cd in QMetaObject::activate (sender=0xa2ff830, m=0xb776bd48, local_signal_index=1, argv=0x0) at kernel/qobject.cpp:3566
#15 0xb774b4f5 in Mixer::controlChanged (this=0xa2ff830) at ./mixer.moc:103
#16 0xb774b62c in Mixer::qt_metacall (this=0xa2ff830, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0xbff240b0) at ./mixer.moc:82
#17 0xb5bd74ad in metacall (argv=0xbff240b0, idx=5, cl=QMetaObject::InvokeMetaMethod, object=0xa2ff830) at kernel/qmetaobject.cpp:245
#18 QMetaObject::metacall (object=0xa2ff830, cl=QMetaObject::InvokeMetaMethod, idx=5, argv=0xbff240b0) at kernel/qmetaobject.cpp:240
#19 0xb5be71cd in QMetaObject::activate (sender=0xa2d59b0, m=0xb7769ce4, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3566
#20 0xb7700a95 in Mixer_Backend::controlChanged (this=0xa2d59b0) at ./mixer_backend.moc:93
#21 0xb7700d58 in Mixer_Backend::readSetFromHW (this=0xa2d59b0) at ../../kmix/backends/mixer_backend.cpp:155
#22 0xb770dc8a in Mixer_PULSE::triggerUpdate (this=0xa2d59b0) at ../../kmix/backends/mixer_pulse.cpp:1286
#23 0xb7711ff5 in sink_cb (c=0xa2d9aa0, i=0x0, eol=1) at ../../kmix/backends/mixer_pulse.cpp:191
#24 0xb6b69035 in ?? () from /usr/lib/i386-linux-gnu/libpulse.so.0
#25 0xb3177ebd in ?? () from /usr/lib/i386-linux-gnu/libpulsecommon-1.0.so
#26 0xb31782c0 in pa_pdispatch_run () from /usr/lib/i386-linux-gnu/libpulsecommon-1.0.so
#27 0xb6b5cadd in ?? () from /usr/lib/i386-linux-gnu/libpulse.so.0
#28 0xb317d893 in ?? () from /usr/lib/i386-linux-gnu/libpulsecommon-1.0.so
#29 0xb3167c18 in ?? () from /usr/lib/i386-linux-gnu/libpulsecommon-1.0.so
#30 0xb6b4baaa in ?? () from /usr/lib/i386-linux-gnu/libpulse-mainloop-glib.so.0
#31 0xb304825f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#32 0xb3048990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#33 0xb3048c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#34 0xb5c03167 in QEventDispatcherGlib::processEvents (this=0x9f55ed0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#35 0xb626bfda in QGuiEventDispatcherGlib::processEvents (this=0x9f55ed0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0xb5bced1d in QEventLoop::processEvents (this=0xbff24b24, flags=...) at kernel/qeventloop.cpp:149
#37 0xb5bcefb9 in QEventLoop::exec (this=0xbff24b24, flags=...) at kernel/qeventloop.cpp:204
#38 0xb5bd46ca in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#39 0xb61b46a4 in QApplication::exec () at kernel/qapplication.cpp:3816
#40 0xb771a2ab in kdemain (argc=3, argv=0xbff24d84) at ../../kmix/apps/main.cpp:76
#41 0x0804850b in main (argc=3, argv=0xbff24d84) at kmix_dummy.cpp:3

Possible duplicates by query: bug 296557, bug 296454, bug 296419, bug 296345, bug 296269.

Reported using DrKonqi