Application: kmix (4.2)
KDE Platform Version: 4.9.00 (Compiled from sources)
Qt Version: 4.8.2
Operating System: Linux 3.5.0-gentoo x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
- What I was doing when the application crashed:
Starting kde from the console:
# startx

I've got this error just twice since I'm using kde 4.9, so it's nothing very disturbing.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KMix (kdeinit4), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f076f072780 (LWP 4286))]

Thread 2 (Thread 0x7f074e7d4700 (LWP 4289)):
#0  0x00007f076d8b38ad in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f0769321bf0 in read (__nbytes=16, __buf=0x7f074e7d3c20, __fd=<optimized out>) at /usr/include/bits/unistd.h:45
#2  g_wakeup_acknowledge (wakeup=0x8f6fc0) at gwakeup.c:212
#3  0x00007f07692e453c in g_main_context_check (context=0x7f07480009a0, max_priority=2147483647, fds=0x7f0748002bb0, n_fds=1) at gmain.c:2980
#4  0x00007f07692e499c in g_main_context_iterate (context=0x7f07480009a0, block=1, dispatch=1, self=<optimized out>) at gmain.c:3143
#5  0x00007f07692e4b0c in g_main_context_iteration (context=0x7f07480009a0, may_block=1) at gmain.c:3207
#6  0x00007f076dc73036 in QEventDispatcherGlib::processEvents (this=0x7f07480008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007f076dc42a12 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f076dc42d05 in QEventLoop::exec (this=0x7f074e7d3dc0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f076db404c8 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007f076dc21840 in QInotifyFileSystemWatcherEngine::run (this=0xbb10f0) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007f076db42ba7 in QThreadPrivate::start (arg=0xbb10f0) at thread/qthread_unix.cpp:307
#12 0x00007f076d8abf26 in start_thread (arg=0x7f074e7d4700) at pthread_create.c:305
#13 0x00007f076c5e098d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f076f072780 (LWP 4286)):
[KCrash Handler]
#6  0x00007f076c52bbb5 in *__GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007f076c52cf5a in *__GI_abort () at abort.c:91
#8  0x00007f076c524b1e in __assert_fail_base (fmt=<optimized out>, assertion=0x7f0757625f5f "elem", file=0x7f0757623519 "hcontrol.c", line=<optimized out>, function=<optimized out>) at assert.c:94
#9  0x00007f076c524be2 in *__GI___assert_fail (assertion=0x7f0757625f5f "elem", file=0x7f0757623519 "hcontrol.c", line=764, function=0x7f0757623970 "snd_hctl_handle_event") at assert.c:103
#10 0x00007f07575b5cc9 in snd_hctl_handle_event (event=0x7fff7cc0aa70, hctl=0xb3b530) at hcontrol.c:764
#11 snd_hctl_handle_events (hctl=0xb3b530) at hcontrol.c:793
#12 0x00007f07575c11b9 in snd_mixer_handle_events (mixer=0x8d6010) at mixer.c:847
#13 0x00007f07578921fd in Mixer_ALSA::prepareUpdateFromHW (this=0xab9a80) at /var/tmp/portage/kde-base/kmix-4.9.0/work/kmix-4.9.0/backends/mixer_alsa9.cpp:603
#14 0x00007f075788a1fa in Mixer_Backend::readSetFromHW (this=0xab9a80) at /var/tmp/portage/kde-base/kmix-4.9.0/work/kmix-4.9.0/backends/mixer_backend.cpp:110
#15 0x00007f076dc59702 in QMetaObject::activate (sender=0xc33020, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#16 0x00007f076dc618bf in QSingleShotTimer::timerEvent (this=0xc33020) at kernel/qtimer.cpp:317
#17 0x00007f076dc58819 in QObject::event (this=0xc33020, e=<optimized out>) at kernel/qobject.cpp:1157
#18 0x00007f076cd85bbc in QApplicationPrivate::notify_helper (this=0x8f5950, receiver=0xc33020, e=0x7fff7cc0b580) at kernel/qapplication.cpp:4551
#19 0x00007f076cd8a68f in QApplication::notify (this=<optimized out>, receiver=0xc33020, e=0x7fff7cc0b580) at kernel/qapplication.cpp:4412
#20 0x00007f076ea45448 in KApplication::notify (this=0x8e48c0, receiver=0xc33020, event=0x7fff7cc0b580) at /var/tmp/portage/kde-base/kdelibs-4.9.0/work/kdelibs-4.9.0/kdeui/kernel/kapplication.cpp:311
#21 0x00007f076dc43d2b in QCoreApplication::notifyInternal (this=0x8e48c0, receiver=0xc33020, event=0x7fff7cc0b580) at kernel/qcoreapplication.cpp:915
#22 0x00007f076dc758e9 in sendEvent (event=0x7fff7cc0b580, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#23 QTimerInfoList::activateTimers (this=0x8f58d0) at kernel/qeventdispatcher_unix.cpp:611
#24 0x00007f076dc728bd in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#25 0x00007f07692e46fa in g_main_dispatch (context=0x8f6c20) at gmain.c:2539
#26 g_main_context_dispatch (context=0x8f6c20) at gmain.c:3075
#27 0x00007f07692e4a58 in g_main_context_iterate (context=0x8f6c20, block=1, dispatch=1, self=<optimized out>) at gmain.c:3146
#28 0x00007f07692e4b0c in g_main_context_iteration (context=0x8f6c20, may_block=1) at gmain.c:3207
#29 0x00007f076dc72ffa in QEventDispatcherGlib::processEvents (this=0x8ed6c0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#30 0x00007f076ce2bba6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#31 0x00007f076dc42a12 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#32 0x00007f076dc42d05 in QEventLoop::exec (this=0x7fff7cc0b810, flags=...) at kernel/qeventloop.cpp:204
#33 0x00007f076dc477bb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#34 0x00007f07578973fa in kdemain (argc=3, argv=0x8d6100) at /var/tmp/portage/kde-base/kmix-4.9.0/work/kmix-4.9.0/apps/main.cpp:76
#35 0x0000000000407646 in launch (argc=3, _name=0x8ae6f8 "kmix", args=<optimized out>, cwd=0x0, envc=<optimized out>, envs=<optimized out>, reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x40b7e5 "0") at /var/tmp/portage/kde-base/kdelibs-4.9.0/work/kdelibs-4.9.0/kinit/kinit.cpp:734
#36 0x0000000000408278 in handle_launcher_request (sock=<optimized out>, who=<optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.9.0/work/kdelibs-4.9.0/kinit/kinit.cpp:1226
#37 0x0000000000408963 in handle_requests (waitForPid=0) at /var/tmp/portage/kde-base/kdelibs-4.9.0/work/kdelibs-4.9.0/kinit/kinit.cpp:1419
#38 0x0000000000409611 in main (argc=2, argv=0x7fff7cc0cc58, envp=0x7fff7cc0cc70) at /var/tmp/portage/kde-base/kdelibs-4.9.0/work/kdelibs-4.9.0/kinit/kinit.cpp:1907

Possible duplicates by query: bug 303639, bug 303363, bug 303176, bug 301141, bug 300622.

Reported using DrKonqi