Application: kmix (4.3)
KDE Platform Version: 4.10.00
Qt Version: 4.8.4
Operating System: Linux 3.8.0-0.rc6.git2.1.fc19.x86_64 x86_64

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

1. Pair with headset.
2. run: speaker-test
3. switch audio stream to headset using KMix applet

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7fe733daf8c0 (LWP 2187))]

Thread 2 (Thread 0x7fe71e030700 (LWP 2307)):
#0  0x00000037edaeb3ed in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fe7386e8164 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7fe718002bb0, timeout=-1, context=0x7fe7180009a0) at gmain.c:3995
#2  g_main_context_iterate (context=context@entry=0x7fe7180009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3696
#3  0x00007fe7386e826c in g_main_context_iteration (context=0x7fe7180009a0, may_block=1) at gmain.c:3762
#4  0x00007fe738db8db6 in QEventDispatcherGlib::processEvents (this=0x7fe7180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fe738d8ad8f in QEventLoop::processEvents (this=this@entry=0x7fe71e02fc70, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fe738d8b085 in QEventLoop::exec (this=0x7fe71e02fc70, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fe738c8a5df in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#8  0x00007fe738d6c603 in QInotifyFileSystemWatcherEngine::run (this=0xcd4360) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007fe738c8cc7f in QThreadPrivate::start (arg=0xcd4360) at thread/qthread_unix.cpp:338
#10 0x00000037ee207d15 in start_thread (arg=0x7fe71e030700) at pthread_create.c:308
#11 0x00000037edaf4c4d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fe733daf8c0 (LWP 2187)):
[KCrash Handler]
#6  0x00007fe738da32d3 in QMetaObject::changeGuard (ptr=0x103cdb0, o=0x0) at kernel/qobject.cpp:460
#7  0x00007fe73a08818d in operator= (p=0x0, this=0x103cdb0) at ../../src/corelib/kernel/qpointer.h:68
#8  QMenuPrivate::activateAction (this=0x103caf0, action=0xfc9000, action_e=QAction::Trigger, self=<optimized out>) at widgets/qmenu.cpp:1143
#9  0x00007fe73aa391d5 in KMenu::mouseReleaseEvent (this=0x101ea60, e=0x7fff841a8490) at /usr/src/debug/kdelibs-4.10.0/kdeui/widgets/kmenu.cpp:464
#10 0x00007fe739cafa4b in QWidget::event (this=0x101ea60, event=0x7fff841a8490) at kernel/qwidget.cpp:8375
#11 0x00007fe73a08bf4b in QMenu::event (this=0x101ea60, e=0x7fff841a8490) at widgets/qmenu.cpp:2481
#12 0x00007fe739c605dc in QApplicationPrivate::notify_helper (this=0x8d60f0, receiver=0x101ea60, e=0x7fff841a8490) at kernel/qapplication.cpp:4562
#13 0x00007fe739c66b8d in QApplication::notify (this=<optimized out>, receiver=0x101ea60, e=0x7fff841a8490) at kernel/qapplication.cpp:4105
#14 0x00007fe73a98237a in KApplication::notify (this=0x8b90a0, receiver=0x101ea60, event=0x7fff841a8490) at /usr/src/debug/kdelibs-4.10.0/kdeui/kernel/kapplication.cpp:311
#15 0x00007fe738d8c05d in QCoreApplication::notifyInternal (this=0x8b90a0, receiver=0x101ea60, event=0x7fff841a8490) at kernel/qcoreapplication.cpp:946
#16 0x00007fe739c66343 in QApplicationPrivate::sendMouseEvent (receiver=0x101ea60, event=0x7fff841a8490, alienWidget=0x0, nativeWidget=0x101ea60, buttonDown=0x7fe73a73b258 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:231
#17 0x00007fe739cd7cdc in QETWidget::translateMouseEvent (this=this@entry=0x101ea60, event=event@entry=0x7fff841a87d0) at kernel/qapplication_x11.cpp:4471
#18 0x00007fe739cd641c in QApplication::x11ProcessEvent (this=0x8b90a0, event=0x7fff841a87d0) at kernel/qapplication_x11.cpp:3660
#19 0x00007fe739cfcec4 in x11EventSourceDispatch (s=s@entry=0x8d3bf0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#20 0x00007fe7386e7e76 in g_main_dispatch (context=0x8d6480) at gmain.c:3054
#21 g_main_context_dispatch (context=context@entry=0x8d6480) at gmain.c:3630
#22 0x00007fe7386e81c8 in g_main_context_iterate (context=context@entry=0x8d6480, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3701
#23 0x00007fe7386e826c in g_main_context_iteration (context=0x8d6480, may_block=1) at gmain.c:3762
#24 0x00007fe738db8d95 in QEventDispatcherGlib::processEvents (this=0x897ab0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#25 0x00007fe739cfd036 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#26 0x00007fe738d8ad8f in QEventLoop::processEvents (this=this@entry=0x7fff841a8bb0, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007fe738d8b085 in QEventLoop::exec (this=0x7fff841a8bb0, flags=...) at kernel/qeventloop.cpp:204
#28 0x00007fe738d9009b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#29 0x0000003804a43f3a in kdemain (argc=3, argv=0x7fff841a8e08) at /usr/src/debug/kmix-4.10.0/apps/main.cpp:76
#30 0x00000037eda21c25 in __libc_start_main (main=0x400800 <main(int, char**)>, argc=3, ubp_av=0x7fff841a8e08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff841a8df8) at libc-start.c:258
#31 0x0000000000400831 in _start ()

Possible duplicates by query: bug 313197.

Reported using DrKonqi