Application: kmix (4.2)
KDE Platform Version: 4.9.2
Qt Version: 4.8.2
Operating System: Linux 3.6.2 x86_64
Distribution: "Gentoo Base System release 2.1"

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

Just logged in, waiting for the desktop to become ready to use.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KMix (kdeinit4), signal: Aborted
[Current thread is 1 (Thread 0x7f6524f04780 (LWP 3545))]

Thread 2 (Thread 0x7f65101b7700 (LWP 3547)):
#0  0x00007f652c4b3247 in __pthread_mutex_lock (mutex=0x7f6508000a60) at pthread_mutex_lock.c:92
#1  0x00007f6527cb3ad1 in g_mutex_lock (mutex=<optimized out>) at gthread-posix.c:208
#2  0x00007f6527c78e90 in g_main_context_prepare (context=0x7f65080009a0, priority=0x7f65101b6cb8) at gmain.c:2838
#3  0x00007f6527c795db in g_main_context_iterate (dispatch=1, block=1, context=0x7f65080009a0, self=<optimized out>) at gmain.c:3126
#4  g_main_context_iterate (context=0x7f65080009a0, block=1, dispatch=1, self=<optimized out>) at gmain.c:3083
#5  0x00007f6527c797cc in g_main_context_iteration (context=0x7f65080009a0, may_block=1) at gmain.c:3207
#6  0x00007f652c877a2e in QEventDispatcherGlib::processEvents (this=0x7f65080008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007f652c847692 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f652c847917 in QEventLoop::exec (this=0x7f65101b6dd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f652c74767f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007f652c82753f in QInotifyFileSystemWatcherEngine::run (this=0x87ed80) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007f652c74a65b in QThreadPrivate::start (arg=0x87ed80) at thread/qthread_unix.cpp:307
#12 0x00007f652c4b1006 in start_thread (arg=0x7f65101b7700) at pthread_create.c:305
#13 0x00007f652b1f8f8d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f6524f04780 (LWP 3545)):
[KCrash Handler]
#6  0x00007f652b147e35 in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007f652b149305 in __GI_abort () at abort.c:91
#8  0x00007f652b140dbe in __assert_fail_base (fmt=<optimized out>, assertion=0x7f65197c399e "elem", file=0x7f65197c0f61 "hcontrol.c", line=<optimized out>, function=<optimized out>) at assert.c:94
#9  0x00007f652b140e62 in __GI___assert_fail (assertion=0x7f65197c399e "elem", file=0x7f65197c0f61 "hcontrol.c", line=764, function=0x7f65197c1380 "snd_hctl_handle_event") at assert.c:103
#10 0x00007f6519755a58 in snd_hctl_handle_event (event=0x7fff0ee84330, hctl=0xb15120) at hcontrol.c:764
#11 snd_hctl_handle_events (hctl=0xb15120) at hcontrol.c:793
#12 0x00007f6519761139 in snd_mixer_handle_events (mixer=0xad9790) at mixer.c:847
#13 0x00007f6519a34cdd in prepareUpdateFromHW (this=0x98cd00) at /var/tmp/portage/kde-base/kmix-4.9.2/work/kmix-4.9.2/backends/mixer_alsa9.cpp:603
#14 Mixer_ALSA::prepareUpdateFromHW (this=0x98cd00) at /var/tmp/portage/kde-base/kmix-4.9.2/work/kmix-4.9.2/backends/mixer_alsa9.cpp:569
#15 0x00007f6519a2cdba in Mixer_Backend::readSetFromHW (this=0x98cd00) at /var/tmp/portage/kde-base/kmix-4.9.2/work/kmix-4.9.2/backends/mixer_backend.cpp:110
#16 0x00007f652c85c971 in QMetaObject::activate (sender=0x992a30, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#17 0x00007f652c865f7f in QSingleShotTimer::timerEvent (this=0x992a30) at kernel/qtimer.cpp:317
#18 0x00007f652c861799 in QObject::event (this=0x992a30, e=<optimized out>) at kernel/qobject.cpp:1157
#19 0x00007f652b9aaed4 in notify_helper (e=0x7fff0ee84e00, receiver=0x992a30, this=0x6ed910) at kernel/qapplication.cpp:4551
#20 QApplicationPrivate::notify_helper (this=0x6ed910, receiver=0x992a30, e=0x7fff0ee84e00) at kernel/qapplication.cpp:4523
#21 0x00007f652b9afb81 in QApplication::notify (this=0x6cf4e0, receiver=0x992a30, e=0x7fff0ee84e00) at kernel/qapplication.cpp:3933
#22 0x00007f652d64b628 in KApplication::notify (this=0x6cf4e0, receiver=0x992a30, event=0x7fff0ee84e00) at /var/tmp/portage/kde-base/kdelibs-4.9.2/work/kdelibs-4.9.2/kdeui/kernel/kapplication.cpp:311
#23 0x00007f652c848bcb in QCoreApplication::notifyInternal (this=0x6cf4e0, receiver=0x992a30, event=0x7fff0ee84e00) at kernel/qcoreapplication.cpp:915
#24 0x00007f652c8798aa in sendEvent (event=0x7fff0ee84e00, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#25 QTimerInfoList::activateTimers (this=0x6ed890) at kernel/qeventdispatcher_unix.cpp:611
#26 0x00007f652c8771dd in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#27 timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:180
#28 0x00007f6527c793d2 in g_main_dispatch (context=0x6dc870) at gmain.c:2539
#29 g_main_context_dispatch (context=0x6dc870) at gmain.c:3075
#30 0x00007f6527c79710 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x6dc870, self=<optimized out>) at gmain.c:3146
#31 g_main_context_iterate (context=0x6dc870, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3083
#32 0x00007f6527c797cc in g_main_context_iteration (context=0x6dc870, may_block=1) at gmain.c:3207
#33 0x00007f652c8779d6 in QEventDispatcherGlib::processEvents (this=0x6d82e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#34 0x00007f652ba4e866 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#35 0x00007f652c847692 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#36 0x00007f652c847917 in QEventLoop::exec (this=0x7fff0ee85060, flags=...) at kernel/qeventloop.cpp:204
#37 0x00007f652c84c785 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#38 0x00007f6519a39e92 in kdemain (argc=3, argv=0x6bdae0) at /var/tmp/portage/kde-base/kmix-4.9.2/work/kmix-4.9.2/apps/main.cpp:76
#39 0x0000000000408b9c in launch (argc=3, _name=0x6bd248 "/usr/bin/kmix", args=<optimized out>, cwd=0x0, envc=<optimized out>, envs=<optimized out>, reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x40b5e6 "0") at /var/tmp/portage/kde-base/kdelibs-4.9.2/work/kdelibs-4.9.2/kinit/kinit.cpp:734
#40 0x0000000000409c76 in handle_launcher_request (sock=7, who=<optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.9.2/work/kdelibs-4.9.2/kinit/kinit.cpp:1226
#41 0x000000000040a1c3 in handle_requests (waitForPid=0) at /var/tmp/portage/kde-base/kdelibs-4.9.2/work/kdelibs-4.9.2/kinit/kinit.cpp:1419
#42 0x0000000000405b2d in main (argc=2, argv=0x7fff0ee86200, envp=0x7fff0ee864d0) at /var/tmp/portage/kde-base/kdelibs-4.9.2/work/kdelibs-4.9.2/kinit/kinit.cpp:1907

This bug may be a duplicate of or related to bug 209975.

Possible duplicates by query: bug 305456, bug 303176, bug 301141, bug 289949.

Reported using DrKonqi