Bug 298279

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:
Sometimes it crashes on boot right after i login to kde while othertimes it crashes when my player (Audacious) is crossfading between songs.
- Unusual behavior I noticed:
This is not happening all the time ... not every reboot will trigger a crash for kmix, not every song change crashes kmix.

The crash can be reproduced some of the time.

-- 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 0x7fccb4800880 (LWP 2515))]

Thread 2 (Thread 0x7fcca083c700 (LWP 2578)):
#0  0x0000003f51ce85c3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x0000003f54044fd8 in g_main_context_poll (n_fds=1, fds=0x7fcc9c002420, priority=<optimized out>, timeout=-1, context=0x7fcc9c0009c0) at gmain.c:3402
#2  g_main_context_iterate (context=0x7fcc9c0009c0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3084
#3  0x0000003f5404549c in g_main_context_iteration (context=0x7fcc9c0009c0, may_block=1) at gmain.c:3152
#4  0x0000003db7fa7dc6 in QEventDispatcherGlib::processEvents (this=0x7fcc9c0008e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x0000003db7f78182 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x0000003db7f783d7 in QEventLoop::exec (this=0x7fcca083bc10, flags=...) at kernel/qeventloop.cpp:204
#7  0x0000003db7e78b27 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x0000003db7f57e7f in QInotifyFileSystemWatcherEngine::run (this=0x2766250) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x0000003db7e7bb6b in QThreadPrivate::start (arg=0x2766250) at thread/qthread_unix.cpp:298
#10 0x0000003dc0aa52da in ?? () from /usr/lib64/libGL.so.1
#11 0x0000003f52807d90 in start_thread (arg=0x7fcca083c700) at pthread_create.c:309
#12 0x0000003f51cf0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7fccb4800880 (LWP 2515)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00000035a4e55076 in MDWSlider::update (this=0x26a46d0) at /usr/src/debug/kdemultimedia-4.8.1/kmix/gui/mdwslider.cpp:1001
#8  0x00000035a4e515db in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at /usr/src/debug/kdemultimedia-4.8.1/kmix/gui/viewdockareapopup.cpp:168
#9  0x0000003db7f8cce1 in QMetaObject::activate (sender=0x27a9ed0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x0000003db7f8cce1 in QMetaObject::activate (sender=0x25f1d00, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x00000035a4e2aa7c in Mixer_Backend::readSetFromHW (this=0x25f1d00) at /usr/src/debug/kdemultimedia-4.8.1/kmix/backends/mixer_backend.cpp:155
#12 0x00000035a4e3adf5 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 0x0000003dc26156f0 in context_get_sink_info_callback (pd=<optimized out>, command=<optimized out>, tag=<optimized out>, t=0x275b9d0, userdata=0x2791150) at pulse/introspect.c:263
#14 0x0000003dc2a27223 in run_action (pd=0x2751530, r=0x270b540, command=2, ts=0x275b9d0) at pulsecore/pdispatch.c:274
#15 0x0000003dc2a27593 in pa_pdispatch_run (pd=0x2751530, packet=<optimized out>, creds=0x26d6940, userdata=0x2664240) at pulsecore/pdispatch.c:326
#16 0x0000003dc260ebfd in pstream_packet_callback (p=<optimized out>, packet=0x28e4d70, creds=0x26d6940, userdata=0x2664240) at pulse/context.c:346
#17 0x0000003dc2a2be39 in do_read (p=0x26d67f0) at pulsecore/pstream.c:816
#18 do_something (p=0x26d67f0) at pulsecore/pstream.c:184
#19 0x0000003dc3201bd3 in dispatch_func (source=0x25b14d0, callback=<optimized out>, userdata=<optimized out>) at pulse/glib-mainloop.c:585
#20 0x0000003f54044acd in g_main_dispatch (context=0x23789e0) at gmain.c:2441
#21 g_main_context_dispatch (context=0x23789e0) at gmain.c:3011
#22 0x0000003f540452c8 in g_main_context_iterate (context=0x23789e0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3089
#23 0x0000003f5404549c in g_main_context_iteration (context=0x23789e0, may_block=1) at gmain.c:3152
#24 0x0000003db7fa7d5f in QEventDispatcherGlib::processEvents (this=0x2335b50, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#25 0x0000003ebda6c66e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#26 0x0000003db7f78182 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x0000003db7f783d7 in QEventLoop::exec (this=0x7fff80877e80, flags=...) at kernel/qeventloop.cpp:204
#28 0x0000003db7f7cdd5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#29 0x00000035a4e42432 in kdemain (argc=3, argv=0x7fff80878408) at /usr/src/debug/kdemultimedia-4.8.1/kmix/apps/main.cpp:76
#30 0x0000003f51c2169d in __libc_start_main (main=0x400730 <main(int, char**)>, argc=3, ubp_av=0x7fff80878408, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff808783f8) at libc-start.c:226
#31 0x0000000000400761 in _start ()

Possible duplicates by query: bug 298272, bug 298269, bug 298230, bug 298205, bug 298156.

Reported using DrKonqi