Bug 301304

Application: kmix (4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.0.0-20-generic x86_64
Distribution: Linux Mint 12 KDE

-- Information about the crash:
- What I was doing when the application crashed:
I have a bluetooth audio receiver. When I disconnect from it, kmix crashes rather than switching to internal audio.

The crash can be reproduced every time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fdbc39827a0 (LWP 6206))]

Thread 3 (Thread 0x7fdba4d5c700 (LWP 6207)):
#0  0x00007fdbb9efc03e in __pthread_mutex_lock (mutex=0x1185398) at pthread_mutex_lock.c:62
#1  0x00007fdbb938e649 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdbb938fd81 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdbb9390429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdbc00045a6 in QEventDispatcherGlib::processEvents (this=0x11adf40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fdbbffd3d82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fdbbffd3fd7 in QEventLoop::exec (this=0x7fdba4d5bdb0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fdbbfed3077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fdbbffb3aff in QInotifyFileSystemWatcherEngine::run (this=0x115a6f0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fdbbfed609b in QThreadPrivate::start (arg=0x115a6f0) at thread/qthread_unix.cpp:298
#10 0x00007fdbb9ef9efc in start_thread (arg=0x7fdba4d5c700) at pthread_create.c:304
#11 0x00007fdbc326359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fdb9bffe700 (LWP 6208)):
#0  pthread_mutex_lock (mutex=0x12c9678) at forward.c:182
#1  0x00007fdbb938e839 in g_main_context_release () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdbb938ff9a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdbb9390429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdbc00045a6 in QEventDispatcherGlib::processEvents (this=0x12c9150, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fdbbffd3d82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fdbbffd3fd7 in QEventLoop::exec (this=0x7fdb9bffddb0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fdbbfed3077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fdbbffb3aff in QInotifyFileSystemWatcherEngine::run (this=0x12c87c0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fdbbfed609b in QThreadPrivate::start (arg=0x12c87c0) at thread/qthread_unix.cpp:298
#10 0x00007fdbb9ef9efc in start_thread (arg=0x7fdb9bffe700) at pthread_create.c:304
#11 0x00007fdbc326359d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fdbc39827a0 (LWP 6206)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007fdbc3576756 in MDWSlider::update (this=0x129a190) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007fdbc357200b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007fdbc356f311 in ViewBase::qt_metacall (this=0x128a9a0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffff399a60) at ./viewbase.moc:87
#10 0x00007fdbc35719e0 in ViewDockAreaPopup::qt_metacall (this=0x128a9a0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffff399a60) at ./viewdockareapopup.moc:73
#11 0x00007fdbbffe9589 in QMetaObject::activate (sender=0x1200160, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3566
#12 0x00007fdbc358e0cc in Mixer::qt_metacall (this=0x1200160, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffff399bb0) at ./mixer.moc:82
#13 0x00007fdbbffe9589 in QMetaObject::activate (sender=0x11fe4a0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3566
#14 0x00007fdbc354b38c in Mixer_Backend::readSetFromHW (this=0x11fe4a0) at ../../kmix/backends/mixer_backend.cpp:155
#15 0x00007fdbc355b725 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#16 0x00007fdbc1963ce4 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007fdbb98b15f3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#18 0x00007fdbb98b1963 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#19 0x00007fdbc1959c1d in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#20 0x00007fdbb98b6209 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#21 0x00007fdbc1747b23 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#22 0x00007fdbb938fa5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fdbb9390258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fdbb9390429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fdbc000453f in QEventDispatcherGlib::processEvents (this=0xe38a20, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#26 0x00007fdbc0ceb4ee in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007fdbbffd3d82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007fdbbffd3fd7 in QEventLoop::exec (this=0x7fffff39a780, flags=...) at kernel/qeventloop.cpp:204
#29 0x00007fdbbffd9067 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#30 0x00007fdbc3562cc2 in kdemain (argc=1, argv=0x7fffff39ad08) at ../../kmix/apps/main.cpp:76
#31 0x00007fdbc31a130d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fffff39ad08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffff39acf8) at libc-start.c:226
#32 0x0000000000400661 in _start ()

This bug may be a duplicate of or related to bug 290742.

Possible duplicates by query: bug 301221, bug 300652, bug 299167, bug 298661, bug 298495.

Reported using DrKonqi