Application that crashed: kmix
Version of the application: 3.5
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.5-desktop-1mnb i686
Distribution: "Mandriva Linux 2010.0"

What I was doing when the application crashed:
I have three sound cards:
1. usb device: webcam with a bad microphone that I have disabled as sound input.
2. Ensoniq AudioPCI: old sound card only used for its microphone
3. HDA NVidia: on-board sound card that I use for sound output (its microphone does not work)
Pulseaudio is enabled.
I don't know how to reproduce the crashing of KMix. It happens sometimes.
In Mandriva Linux 2009.1 with KDE 4.2.4 KMix never crashed.

 -- Backtrace:
Application: KMix (kdeinit4), signal: Aborted
[KCrash Handler]
#6  0xffffe424 in __kernel_vsyscall ()
#7  0xb5f19611 in raise () from /lib/i686/libc.so.6
#8  0xb5f1af62 in abort () from /lib/i686/libc.so.6
#9  0xb5f1269e in __assert_fail () from /lib/i686/libc.so.6
#10 0xb2d68075 in snd_hctl_handle_events () from /usr/lib/libasound.so.2
#11 0xb2d73be1 in snd_mixer_handle_events () from /usr/lib/libasound.so.2
#12 0xb2e6bfb0 in ?? () from /usr/lib/libkdeinit4_kmix.so
#13 0xb2e76e1e in ?? () from /usr/lib/libkdeinit4_kmix.so
#14 0xb2e76151 in ?? () from /usr/lib/libkdeinit4_kmix.so
#15 0xb76e0144 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb76e0e65 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#17 0xb771b885 in QSocketNotifier::activated () from /usr/lib/libQtCore.so.4
#18 0xb76e4c8f in QSocketNotifier::event () from /usr/lib/libQtCore.so.4
#19 0xb625068c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#20 0xb62580ce in QApplication::notify () from /usr/lib/libQtGui.so.4
#21 0xb6cb1a21 in KApplication::notify () from /usr/lib/libkdeui.so.5
#22 0xb76c9c0e in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#23 0xb76f5c88 in ?? () from /usr/lib/libQtCore.so.4
#24 0xb5e3fb92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#25 0xb5e43468 in ?? () from /usr/lib/libglib-2.0.so.0
#26 0xb5e4358e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#27 0xb76f58f1 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#28 0xb62f24ba in ?? () from /usr/lib/libQtGui.so.4
#29 0xb76c826d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#30 0xb76c86b9 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#31 0xb76cab50 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#32 0xb6250504 in QApplication::exec () from /usr/lib/libQtGui.so.4
#33 0xb2e54013 in kdemain () from /usr/lib/libkdeinit4_kmix.so
#34 0x0804da54 in _start ()

This bug may be a duplicate of or related to bug 214884

Reported using DrKonqi