Application: kmix (4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.0.0-17-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
I was just recording my voice. Before it crashed while keeping a conversation by using Google+ Hangout and  and another time by using Skype. Every time the I adjust the input volume manually while recording or an application adjust it automatically (as Skype or G+ Hangout do) Kmix crashed and no more sound (output or input) is working in the system.

The crash can be reproduced every time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fa6150837a0 (LWP 8068))]

Thread 3 (Thread 0x7fa5f5884700 (LWP 8069)):
#0  0x00007fa614968473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fa60aa8d2a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa60aa8d769 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa6117055a6 in QEventDispatcherGlib::processEvents (this=0x23d1570, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fa6116d4d82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fa6116d4fd7 in QEventLoop::exec (this=0x7fa5f5883db0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fa6115d4077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fa6116b4aff in QInotifyFileSystemWatcherEngine::run (this=0x2377600) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fa6115d709b in QThreadPrivate::start (arg=0x2377600) at thread/qthread_unix.cpp:298
#9  0x00007fa60b5f6efc in start_thread (arg=0x7fa5f5884700) at pthread_create.c:304
#10 0x00007fa61497459d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fa5f4e78700 (LWP 8070)):
#0  0xffffffffff60014a in ?? ()
#1  0x00007fa5f4e77ad0 in ?? ()
#2  0x00007fff9bbff7e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (Thread 0x7fa6150837a0 (LWP 8068)):
[KCrash Handler]
#6  0x00000000024151f0 in ?? ()
#7  0x00007fa614c87756 in MDWSlider::update (this=0x24755f0) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007fa614c8300b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007fa614c80311 in ViewBase::qt_metacall (this=0x24741d0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff9bba51d0) at ./viewbase.moc:87
#10 0x00007fa614c829e0 in ViewDockAreaPopup::qt_metacall (this=0x24741d0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff9bba51d0) at ./viewdockareapopup.moc:73
#11 0x00007fa6116ea589 in QMetaObject::activate (sender=0x2111630, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3566
#12 0x00007fa614c9f0cc in Mixer::qt_metacall (this=0x2111630, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff9bba5320) at ./mixer.moc:82
#13 0x00007fa6116ea589 in QMetaObject::activate (sender=0x23927c0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3566
#14 0x00007fa614c5c38c in Mixer_Backend::readSetFromHW (this=0x23927c0) at ../../kmix/backends/mixer_backend.cpp:155
#15 0x00007fa614c6c725 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#16 0x00007fa613065ce4 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007fa60afae5f3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#18 0x00007fa60afae963 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#19 0x00007fa61305bc1d in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#20 0x00007fa60afb3209 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#21 0x00007fa612e49b23 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#22 0x00007fa60aa8cd9f in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fa60aa8d598 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fa60aa8d769 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fa61170553f in QEventDispatcherGlib::processEvents (this=0x1f33ad0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#26 0x00007fa6123ed4ee in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007fa6116d4d82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007fa6116d4fd7 in QEventLoop::exec (this=0x7fff9bba5ef0, flags=...) at kernel/qeventloop.cpp:204
#29 0x00007fa6116da067 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#30 0x00007fa614c73cc2 in kdemain (argc=5, argv=0x7fff9bba6478) at ../../kmix/apps/main.cpp:76
#31 0x00007fa6148b230d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=5, ubp_av=0x7fff9bba6478, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff9bba6468) at libc-start.c:226
#32 0x0000000000400661 in _start ()

Possible duplicates by query: bug 297834, bug 297754, bug 297547, bug 297448, bug 297431.

Reported using DrKonqi