Application: kmix (4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-23-generic x86_64
Distribution: Ubuntu 12.04 LTS

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

Sometimes KMix crashes shortly after booting, sometimes when I start VirtualBox and sometimes when I play videos.  This time it was when I started playing a video on BBC News in Firefox using the Adobe plug-in.  The sound still worked and the volume control in the browser plug-in continued to work.

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 0x7fef4d251780 (LWP 2347))]

Thread 3 (Thread 0x7fef25a3e700 (LWP 2403)):
#0  0x00007fef4cb260bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fef4296e89f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fef42933abd in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fef42933f96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fef42934124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fef498ae426 in QEventDispatcherGlib::processEvents (this=0x7fef200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fef4987dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fef4987ded7 in QEventLoop::exec (this=0x7fef25a3ddd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fef4977cfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fef4985d9ff in QInotifyFileSystemWatcherEngine::run (this=0x25d2e90) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fef4977ffcb in QThreadPrivate::start (arg=0x25d2e90) at thread/qthread_unix.cpp:298
#11 0x00007fef4349ae9a in start_thread (arg=0x7fef25a3e700) at pthread_create.c:308
#12 0x00007fef4cb334bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fef25031700 (LWP 2463)):
#0  0x00007fef4cb27b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fef42933ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fef42934124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fef498ae426 in QEventDispatcherGlib::processEvents (this=0x7fef140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fef4987dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fef4987ded7 in QEventLoop::exec (this=0x7fef25030dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fef4977cfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fef4985d9ff in QInotifyFileSystemWatcherEngine::run (this=0x2786110) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fef4977ffcb in QThreadPrivate::start (arg=0x2786110) at thread/qthread_unix.cpp:298
#9  0x00007fef4349ae9a in start_thread (arg=0x7fef25031700) at pthread_create.c:308
#10 0x00007fef4cb334bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fef4d251780 (LWP 2347)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007fef4ce53e26 in MDWSlider::update (this=0x275ea20) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007fef4ce4f64b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007fef49893281 in QMetaObject::activate (sender=0x2349a10, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007fef49893281 in QMetaObject::activate (sender=0x26f9320, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x00007fef4ce28b0c in Mixer_Backend::readSetFromHW (this=0x26f9320) at ../../kmix/backends/mixer_backend.cpp:155
#12 0x00007fef4ce38df5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#13 0x00007fef4b210944 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#14 0x00007fef42e52693 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#15 0x00007fef42e52a03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#16 0x00007fef4b206bdd in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007fef42e572a9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#18 0x00007fef4aff4ab3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#19 0x00007fef42933c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fef42934060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fef42934124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fef498ae3bf in QEventDispatcherGlib::processEvents (this=0x22fcad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007fef4a598d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007fef4987dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007fef4987ded7 in QEventLoop::exec (this=0x7fff2e68b880, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007fef49882f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#27 0x00007fef4ce403e2 in kdemain (argc=1, argv=0x7fff2e68be08) at ../../kmix/apps/main.cpp:76
#28 0x00007fef4ca6276d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff2e68be08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff2e68bdf8) at libc-start.c:226
#29 0x0000000000400661 in _start ()

Possible duplicates by query: bug 299721, bug 299720, bug 299708, bug 299693, bug 299659.

Reported using DrKonqi