Bug 297096

Application: kmix (4)
KDE Platform Version: 4.8.1 (4.8.1)
Qt Version: 4.8.0
Operating System: Linux 3.3.0-4.fc16.x86_64 x86_64
Distribution: "Fedora release 16 (Verne)"

-- Information about the crash:
- What I was doing when the application crashed:
Watching a video in VLC and using Internal Audio.

- Unusual behavior I noticed:
Unusual that it crashes while doing something so common.

- Custom settings of the application:
Running two virtual desktops under KDE and multible screens.

The crash can be reproduced every 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 0x7fa7fb984840 (LWP 12403))]

Thread 2 (Thread 0x7fa7e74a9700 (LWP 12404)):
#0  0x00000030b72e85c3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x0000003dbb044fd8 in g_main_context_poll (n_fds=1, fds=0x7fa7e0002400, priority=<optimized out>, timeout=-1, context=0x7fa7e00009a0) at gmain.c:3402
#2  g_main_context_iterate (context=0x7fa7e00009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3084
#3  0x0000003dbb04549c in g_main_context_iteration (context=0x7fa7e00009a0, may_block=1) at gmain.c:3152
#4  0x000000381e9a7dc6 in QEventDispatcherGlib::processEvents (this=0x7fa7e00008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x000000381e978182 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x000000381e9783d7 in QEventLoop::exec (this=0x7fa7e74a8d10, flags=...) at kernel/qeventloop.cpp:204
#7  0x000000381e878b27 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x000000381e957e7f in QInotifyFileSystemWatcherEngine::run (this=0x158b510) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x000000381e87bb6b in QThreadPrivate::start (arg=0x158b510) at thread/qthread_unix.cpp:298
#10 0x00000030b7a07d90 in start_thread (arg=0x7fa7e74a9700) at pthread_create.c:309
#11 0x00000030b72f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7fa7fb984840 (LWP 12403)):
[KCrash Handler]
#6  0x000000366787bea0 in typeinfo for QGesture () from /usr/lib64/libQtGui.so.4
#7  0x000000366aa55076 in MDWSlider::update (this=0x15621c0) at /usr/src/debug/kdemultimedia-4.8.1/kmix/gui/mdwslider.cpp:1001
#8  0x000000366aa515db in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at /usr/src/debug/kdemultimedia-4.8.1/kmix/gui/viewdockareapopup.cpp:168
#9  0x000000381e98cce1 in QMetaObject::activate (sender=0x14cd2b0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x000000381e98cce1 in QMetaObject::activate (sender=0x14505d0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x000000366aa2aa7c in Mixer_Backend::readSetFromHW (this=0x14505d0) at /usr/src/debug/kdemultimedia-4.8.1/kmix/backends/mixer_backend.cpp:155
#12 0x000000366aa3adf5 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 0x00000038284156f0 in context_get_sink_info_callback (pd=<optimized out>, command=<optimized out>, tag=<optimized out>, t=0x1468cc0, userdata=0x1466e10) at pulse/introspect.c:263
#14 0x0000003828027223 in run_action (pd=0x14ada50, r=0x14673a0, command=2, ts=0x1468cc0) at pulsecore/pdispatch.c:274
#15 0x0000003828027593 in pa_pdispatch_run (pd=0x14ada50, packet=<optimized out>, creds=0x159bdf0, userdata=0x144e6d0) at pulsecore/pdispatch.c:326
#16 0x000000382840ebfd in pstream_packet_callback (p=<optimized out>, packet=0x16521b0, creds=0x159bdf0, userdata=0x144e6d0) at pulse/context.c:346
#17 0x000000382802be39 in do_read (p=0x159bca0) at pulsecore/pstream.c:816
#18 do_something (p=0x159bca0) at pulsecore/pstream.c:184
#19 0x0000003828c01bd3 in dispatch_func (source=0x14683d0, callback=<optimized out>, userdata=<optimized out>) at pulse/glib-mainloop.c:585
#20 0x0000003dbb044acd in g_main_dispatch (context=0x118f0e0) at gmain.c:2441
#21 g_main_context_dispatch (context=0x118f0e0) at gmain.c:3011
#22 0x0000003dbb0452c8 in g_main_context_iterate (context=0x118f0e0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3089
#23 0x0000003dbb04549c in g_main_context_iteration (context=0x118f0e0, may_block=1) at gmain.c:3152
#24 0x000000381e9a7d5f in QEventDispatcherGlib::processEvents (this=0x11553d0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#25 0x0000003666e6c66e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#26 0x000000381e978182 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x000000381e9783d7 in QEventLoop::exec (this=0x7fffc987d830, flags=...) at kernel/qeventloop.cpp:204
#28 0x000000381e97cdd5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#29 0x000000366aa42432 in kdemain (argc=5, argv=0x7fffc987ddb8) at /usr/src/debug/kdemultimedia-4.8.1/kmix/apps/main.cpp:76
#30 0x00000030b722169d in __libc_start_main (main=0x400730 <main(int, char**)>, argc=5, ubp_av=0x7fffc987ddb8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffc987dda8) at libc-start.c:226
#31 0x0000000000400761 in _start ()

This bug may be a duplicate of or related to bug 290742.

Possible duplicates by query: bug 296989, bug 296754, bug 296717, bug 296639, bug 296628.

Reported using DrKonqi