Bug 289216

Application: kmix (3.9)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic x86_64
Distribution: Ubuntu 11.10

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

I'm using ALSA and PulseAudio. After I've run "sudo alsa force-reload" command, KMix crashed.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f262551b7a0 (LWP 1921))]

Thread 3 (Thread 0x7f2606453700 (LWP 1926)):
#0  __pthread_getspecific (key=0) at pthread_getspecific.c:32
#1  0x00007f2621aaa08c in get_thread_data () at thread/qthread_unix.cpp:172
#2  QThreadData::current () at thread/qthread_unix.cpp:210
#3  0x00007f2621bbc6a9 in postEventSourcePrepare (s=0x1583c80, timeout=0x7f2606452c1c) at kernel/qeventdispatcher_glib.cpp:254
#4  0x00007f261af83ff2 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f261af84dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f261af85429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f2621bbcf3e in QEventDispatcherGlib::processEvents (this=0x1584090, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#8  0x00007f2621b90cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#9  0x00007f2621b90ef7 in QEventLoop::exec (this=0x7f2606452db0, flags=...) at kernel/qeventloop.cpp:201
#10 0x00007f2621aa827f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#11 0x00007f2621b73cbf in QInotifyFileSystemWatcherEngine::run (this=0x1556690) at io/qfilesystemwatcher_inotify.cpp:248
#12 0x00007f2621aaad05 in QThreadPrivate::start (arg=0x1556690) at thread/qthread_unix.cpp:331
#13 0x00007f261baeeefc in start_thread (arg=0x7f2606453700) at pthread_create.c:304
#14 0x00007f2624e0c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f2601a46700 (LWP 1928)):
#0  0x00007f2624e00773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f261af84f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f261af85429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2621bbcf3e in QEventDispatcherGlib::processEvents (this=0x162b6b0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f2621b90cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f2621b90ef7 in QEventLoop::exec (this=0x7f2601a45db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f2621aa827f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f2621b73cbf in QInotifyFileSystemWatcherEngine::run (this=0x164a000) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f2621aaad05 in QThreadPrivate::start (arg=0x164a000) at thread/qthread_unix.cpp:331
#9  0x00007f261baeeefc in start_thread (arg=0x7f2601a46700) at pthread_create.c:304
#10 0x00007f2624e0c89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f262551b7a0 (LWP 1921)):
[KCrash Handler]
#6  0x00000000024e4d50 in ?? ()
#7  0x00007f2625104b48 in MDWSlider::update (this=0x2548f30) at ../../kmix/gui/mdwslider.cpp:938
#8  0x00007f26250ff124 in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:164
#9  0x00007f26250fd791 in ViewBase::qt_metacall (this=0x163fc70, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff7446cdf0) at ./viewbase.moc:90
#10 0x00007f26250fef58 in ViewDockAreaPopup::qt_metacall (this=0x163fc70, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=<optimized out>) at ./viewdockareapopup.moc:67
#11 0x00007f2621ba4eba in QMetaObject::activate (sender=0x15be2d0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#12 0x00007f262511cc2c in Mixer::qt_metacall (this=0x15be2d0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff7446ced0) at ./mixer.moc:84
#13 0x00007f2621ba4eba in QMetaObject::activate (sender=0x15b8eb0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3278
#14 0x00007f262512da70 in Mixer_Backend::readSetFromHW (this=0x15b8eb0) at ../../kmix/backends/mixer_backend.cpp:132
#15 0x00007f262512503a in sink_input_cb (c=<optimized out>, i=0x0, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:307
#16 0x00007f262350a9dc in context_get_sink_input_info_callback (pd=<optimized out>, command=<optimized out>, tag=<optimized out>, t=0x2636210, userdata=0x15be680) at pulse/introspect.c:1123
#17 0x00007f261b4a65f3 in run_action (pd=0x1622e00, r=0x15bd8a0, command=2, ts=0x2636210) at pulsecore/pdispatch.c:279
#18 0x00007f261b4a6963 in pa_pdispatch_run (pd=0x1622e00, packet=<optimized out>, creds=0x16f2d20, userdata=0x254ca60) at pulsecore/pdispatch.c:331
#19 0x00007f2623501c1d in pstream_packet_callback (p=<optimized out>, packet=0x266a290, creds=0x16f2d20, userdata=0x254ca60) at pulse/context.c:335
#20 0x00007f261b4ab209 in do_read (p=0x16f2bd0) at pulsecore/pstream.c:809
#21 do_something (p=0x16f2bd0) at pulsecore/pstream.c:177
#22 0x00007f26232efb23 in dispatch_func (source=0x15ced50, callback=<optimized out>, userdata=<optimized out>) at pulse/glib-mainloop.c:584
#23 0x00007f261af84a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f261af85258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f261af85429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007f2621bbced6 in QEventDispatcherGlib::processEvents (this=0x11c1f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#27 0x00007f26228b307e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x00007f2621b90cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007f2621b90ef7 in QEventLoop::exec (this=0x7fff7446d7f0, flags=...) at kernel/qeventloop.cpp:201
#30 0x00007f2621b95789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#31 0x00007f26250f1d82 in kdemain (argc=3, argv=0x7fff7446dd78) at ../../kmix/apps/main.cpp:73
#32 0x00007f2624d4c30d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=3, ubp_av=0x7fff7446dd78, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff7446dd68) at libc-start.c:226
#33 0x0000000000400661 in _start ()

Possible duplicates by query: bug 288786, bug 287535, bug 285017, bug 283194.

Reported using DrKonqi