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: Kmix crashed while trying to select new master channel (every time). Also, spontaneous crashes have been occuring.

The crash can be reproduced every 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 0x7fb56a7457c0 (LWP 14064))]

Thread 3 (Thread 0x7fb548c08700 (LWP 14065)):
#0  0x00007fb56a01cb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fb55fe28ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb55fe29124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb566da3426 in QEventDispatcherGlib::processEvents (this=0x7fb5440008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fb566d72c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fb566d72ed7 in QEventLoop::exec (this=0x7fb548c07cd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fb566c71fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fb566d529ff in QInotifyFileSystemWatcherEngine::run (this=0xb05f10) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fb566c74fcb in QThreadPrivate::start (arg=0xb05f10) at thread/qthread_unix.cpp:298
#9  0x00007fb55bd43b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007fb56098fe9a in start_thread (arg=0x7fb548c08700) at pthread_create.c:308
#11 0x00007fb56a0284bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fb53fffe700 (LWP 14066)):
#0  QTimerInfoList::timerWait (this=0x7fb538002660, tm=...) at kernel/qeventdispatcher_unix.cpp:449
#1  0x00007fb566da297c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fb53fffdb6c) at kernel/qeventdispatcher_glib.cpp:136
#2  0x00007fb566da2a25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#3  0x00007fb55fe2871e in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb55fe28f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb55fe29124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb566da3426 in QEventDispatcherGlib::processEvents (this=0x7fb5380008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007fb566d72c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007fb566d72ed7 in QEventLoop::exec (this=0x7fb53fffdcd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007fb566c71fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007fb566d529ff in QInotifyFileSystemWatcherEngine::run (this=0x920130) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007fb566c74fcb in QThreadPrivate::start (arg=0x920130) at thread/qthread_unix.cpp:298
#12 0x00007fb55bd43b74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#13 0x00007fb56098fe9a in start_thread (arg=0x7fb53fffe700) at pthread_create.c:308
#14 0x00007fb56a0284bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fb56a7457c0 (LWP 14064)):
[KCrash Handler]
#6  0x00007fb56a348e23 in MDWSlider::update (this=0xba6880) at ../../kmix/gui/mdwslider.cpp:1001
#7  0x00007fb56a34464b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#8  0x00007fb566d88281 in QMetaObject::activate (sender=0xb5ac90, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#9  0x00007fb566d88281 in QMetaObject::activate (sender=0xb57940, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007fb56a31db0c in Mixer_Backend::readSetFromHW (this=0xb57940) at ../../kmix/backends/mixer_backend.cpp:155
#11 0x00007fb56a32fcbf in sink_input_cb (c=<optimized out>, i=0x0, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:309
#12 0x00007fb568704a2c in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#13 0x00007fb560347693 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#14 0x00007fb560347a03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#15 0x00007fb5686fbbdd in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#16 0x00007fb56034c2a9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#17 0x00007fb5684e9ab3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#18 0x00007fb55fe28c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fb55fe29060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fb55fe29124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fb566da33bf in QEventDispatcherGlib::processEvents (this=0x673ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#22 0x00007fb567a8dd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007fb566d72c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007fb566d72ed7 in QEventLoop::exec (this=0x7fffd3b03ba0, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007fb566d77f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#26 0x00007fb56a3353e2 in kdemain (argc=5, argv=0x7fffd3b04128) at ../../kmix/apps/main.cpp:76
#27 0x00007fb569f5776d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=5, ubp_av=0x7fffd3b04128, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffd3b04118) at libc-start.c:226
#28 0x0000000000400661 in _start ()

This bug may be a duplicate of or related to bug 299558.

Possible duplicates by query: bug 299558, bug 299486, bug 299450, bug 299425, bug 299412.

Reported using DrKonqi