Bug 298324

Application: kmix (4)
KDE Platform Version: 4.8.1 (4.8.1)
Qt Version: 4.8.0
Operating System: Linux 3.3.1-5.fc16.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
- What I was doing when the application crashed:
Watching a fullscreen Youtube video. Browser was Firefox 11.0 Stable Release.

- Unusual behavior I noticed:
Screen forze and audio stopped. My first action was to Alt+TAB to my browser window but that proved to have no effect as the screen stayed frozen although the tabbing interface showed. After a few seconds, flash and kmix were terminated and I was prompted to report the bug

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f837ea5b840 (LWP 2013))]

Thread 2 (Thread 0x7f836a334700 (LWP 2014)):
#0  0x00000034b92e85c3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00000034b8e44fd8 in g_main_context_poll (n_fds=1, fds=0x7f8364002400, priority=<optimized out>, timeout=-1, context=0x7f83640009a0) at gmain.c:3402
#2  g_main_context_iterate (context=0x7f83640009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3084
#3  0x00000034b8e4549c in g_main_context_iteration (context=0x7f83640009a0, may_block=1) at gmain.c:3152
#4  0x00000034c1fa7dc6 in QEventDispatcherGlib::processEvents (this=0x7f83640008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00000034c1f78182 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00000034c1f783d7 in QEventLoop::exec (this=0x7f836a333d10, flags=...) at kernel/qeventloop.cpp:204
#7  0x00000034c1e78b27 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00000034c1f57e7f in QInotifyFileSystemWatcherEngine::run (this=0xff0290) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00000034c1e7bb6b in QThreadPrivate::start (arg=0xff0290) at thread/qthread_unix.cpp:298
#10 0x00000034b9607d90 in start_thread (arg=0x7f836a334700) at pthread_create.c:309
#11 0x00000034b92f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f837ea5b840 (LWP 2013)):
[KCrash Handler]
#6  0x00000034c6e7bea0 in typeinfo for QGesture () from /usr/lib64/libQtGui.so.4
#7  0x000000347b855076 in MDWSlider::update (this=0xfe9200) at /usr/src/debug/kdemultimedia-4.8.1/kmix/gui/mdwslider.cpp:1001
#8  0x000000347b8515db in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at /usr/src/debug/kdemultimedia-4.8.1/kmix/gui/viewdockareapopup.cpp:168
#9  0x00000034c1f8cce1 in QMetaObject::activate (sender=0xf47fd0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00000034c1f8cce1 in QMetaObject::activate (sender=0xf689f0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x000000347b82aa7c in Mixer_Backend::readSetFromHW (this=0xf689f0) at /usr/src/debug/kdemultimedia-4.8.1/kmix/backends/mixer_backend.cpp:155
#12 0x000000347b83adf5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at /usr/src/debug/kdemultimedia-4.8.1/kmix/backends/mixer_pulse.cpp:191
#13 0x00000034cfe156f0 in context_get_sink_info_callback (pd=<optimized out>, command=<optimized out>, tag=<optimized out>, t=0xeab870, userdata=0xeb7e50) at pulse/introspect.c:263
#14 0x00000034cf227223 in run_action (pd=0xfdd5f0, r=0xeb7570, command=2, ts=0xeab870) at pulsecore/pdispatch.c:274
#15 0x00000034cf227593 in pa_pdispatch_run (pd=0xfdd5f0, packet=<optimized out>, creds=0xf1c9d0, userdata=0xf57e90) at pulsecore/pdispatch.c:326
#16 0x00000034cfe0ebfd in pstream_packet_callback (p=<optimized out>, packet=0xf26ab0, creds=0xf1c9d0, userdata=0xf57e90) at pulse/context.c:346
#17 0x00000034cf22be39 in do_read (p=0xf1c880) at pulsecore/pstream.c:816
#18 do_something (p=0xf1c880) at pulsecore/pstream.c:184
#19 0x00000034d3c01bd3 in dispatch_func (source=0xf57c00, callback=<optimized out>, userdata=<optimized out>) at pulse/glib-mainloop.c:585
#20 0x00000034b8e44acd in g_main_dispatch (context=0xbe3c10) at gmain.c:2441
#21 g_main_context_dispatch (context=0xbe3c10) at gmain.c:3011
#22 0x00000034b8e452c8 in g_main_context_iterate (context=0xbe3c10, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3089
#23 0x00000034b8e4549c in g_main_context_iteration (context=0xbe3c10, may_block=1) at gmain.c:3152
#24 0x00000034c1fa7d5f in QEventDispatcherGlib::processEvents (this=0xbac3f0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#25 0x00000034c646c66e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#26 0x00000034c1f78182 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x00000034c1f783d7 in QEventLoop::exec (this=0x7fff84fdf9a0, flags=...) at kernel/qeventloop.cpp:204
#28 0x00000034c1f7cdd5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#29 0x000000347b842432 in kdemain (argc=5, argv=0x7fff84fdff28) at /usr/src/debug/kdemultimedia-4.8.1/kmix/apps/main.cpp:76
#30 0x00000034b922169d in __libc_start_main (main=0x400730 <main(int, char**)>, argc=5, ubp_av=0x7fff84fdff28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff84fdff18) at libc-start.c:226
#31 0x0000000000400761 in _start ()

Possible duplicates by query: bug 298116, bug 297754, bug 297125, bug 297096, bug 296989.

Reported using DrKonqi