Application: kmix (4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-24-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
1. Start online music playing(google chrome+flash player).
2. Start audacious.
3. Pause flash player.
3. Push audacious play button.
Crash!

The crash can be reproduced some of the time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd1db7e2780 (LWP 26698))]

Thread 4 (Thread 0x7fd1bfdb0700 (LWP 26701)):
#0  0x00007fd1d0eb5a9c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd1d0eb5f96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd1d0eb645a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd1c583f2c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fd1d0ed79a5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd1d1a1ce9a in start_thread (arg=0x7fd1bfdb0700) at pthread_create.c:308
#6  0x00007fd1db0b54bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fd1b5593700 (LWP 26703)):
#0  0x00007fd1db0a9b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fd1d0eb5ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd1d0eb6124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd1d7e30426 in QEventDispatcherGlib::processEvents (this=0x7fd1a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fd1d7dffc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd1d7dffed7 in QEventLoop::exec (this=0x7fd1b5592dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fd1d7cfefa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fd1d7ddf9ff in QInotifyFileSystemWatcherEngine::run (this=0xfa50d0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fd1d7d01fcb in QThreadPrivate::start (arg=0xfa50d0) at thread/qthread_unix.cpp:298
#9  0x00007fd1d1a1ce9a in start_thread (arg=0x7fd1b5593700) at pthread_create.c:308
#10 0x00007fd1db0b54bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fd1b4b86700 (LWP 26704)):
#0  0x00007fd1d0ef12f2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd1d0ef1589 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd1d0eb5713 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd1d0eb5f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd1d0eb6124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd1d7e30426 in QEventDispatcherGlib::processEvents (this=0x7fd1980008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fd1d7dffc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fd1d7dffed7 in QEventLoop::exec (this=0x7fd1b4b85dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fd1d7cfefa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fd1d7ddf9ff in QInotifyFileSystemWatcherEngine::run (this=0xcfb810) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fd1d7d01fcb in QThreadPrivate::start (arg=0xcfb810) at thread/qthread_unix.cpp:298
#11 0x00007fd1d1a1ce9a in start_thread (arg=0x7fd1b4b86700) at pthread_create.c:308
#12 0x00007fd1db0b54bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd1db7e2780 (LWP 26698)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007fd1db3d5e26 in MDWSlider::update (this=0x103f9d0) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007fd1db3d164b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007fd1d7e15281 in QMetaObject::activate (sender=0xfbc420, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007fd1d7e15281 in QMetaObject::activate (sender=0xfdaef0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x00007fd1db3aab0c in Mixer_Backend::readSetFromHW (this=0xfdaef0) at ../../kmix/backends/mixer_backend.cpp:155
#12 0x00007fd1db3badf5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#13 0x00007fd1d9792944 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#14 0x00007fd1d13d4693 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#15 0x00007fd1d13d4a03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#16 0x00007fd1d9788bdd in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007fd1d13d92a9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#18 0x00007fd1d9576ab3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#19 0x00007fd1d0eb5c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fd1d0eb6060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fd1d0eb6124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fd1d7e303bf in QEventDispatcherGlib::processEvents (this=0xa24ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007fd1d8b1ad5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007fd1d7dffc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007fd1d7dffed7 in QEventLoop::exec (this=0x7fff0b61a750, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007fd1d7e04f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#27 0x00007fd1db3c23e2 in kdemain (argc=1, argv=0x7fff0b61acd8) at ../../kmix/apps/main.cpp:76
#28 0x00007fd1dafe476d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff0b61acd8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff0b61acc8) at libc-start.c:226
#29 0x0000000000400661 in _start ()

Possible duplicates by query: bug 300536, bug 300507, bug 300501, bug 300431, bug 300391.

Reported using DrKonqi