Bug 300631

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: unplugged iMic from USB, I've been trying various things to make the event sounds use the iMic and not the internal speakers.

-- 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 0x7f7131e1f7c0 (LWP 2259))]

Thread 3 (Thread 0x7f7110458700 (LWP 2271)):
#0  0x00007f712805a05d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7f7108000a80) at pthread_mutex_unlock.c:290
#2  0x00007f712752b591 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f71274ef713 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f71274eff1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f71274f0124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f712e46a426 in QEventDispatcherGlib::processEvents (this=0x7f71080008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007f712e439c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f712e439ed7 in QEventLoop::exec (this=0x7f7110457cd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f712e338fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007f712e4199ff in QInotifyFileSystemWatcherEngine::run (this=0x25f9bf0) at io/qfilesystemwatcher_inotify.cpp:248
#11 0x00007f712e33bfcb in QThreadPrivate::start (arg=0x25f9bf0) at thread/qthread_unix.cpp:298
#12 0x00007f712340ab74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#13 0x00007f7128056e9a in start_thread (arg=0x7f7110458700) at pthread_create.c:308
#14 0x00007f71316ef4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f710fa4b700 (LWP 2353)):
#0  0x00007f71316e3b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f71274efff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f71274f0124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f712e46a426 in QEventDispatcherGlib::processEvents (this=0x7f70fc0008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f712e439c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f712e439ed7 in QEventLoop::exec (this=0x7f710fa4acd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f712e338fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f712e4199ff in QInotifyFileSystemWatcherEngine::run (this=0x23d7400) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f712e33bfcb in QThreadPrivate::start (arg=0x23d7400) at thread/qthread_unix.cpp:298
#9  0x00007f712340ab74 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f7128056e9a in start_thread (arg=0x7f710fa4b700) at pthread_create.c:308
#11 0x00007f71316ef4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7131e1f7c0 (LWP 2259)):
[KCrash Handler]
#6  0x00007f712fb71c00 in typeinfo for QGesture () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#7  0x00007f7131a0fe26 in MDWSlider::update (this=0x288bc50) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007f7131a0b64b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007f712e44f281 in QMetaObject::activate (sender=0x263bb30, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007f712e44f281 in QMetaObject::activate (sender=0x26381c0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x00007f71319e4b0c in Mixer_Backend::readSetFromHW (this=0x26381c0) at ../../kmix/backends/mixer_backend.cpp:155
#12 0x00007f71319f4df5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#13 0x00007f712fdcc944 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#14 0x00007f7127a0e693 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#15 0x00007f7127a0ea03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#16 0x00007f712fdc2bdd in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007f7127a132a9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#18 0x00007f712fbb0ab3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#19 0x00007f71274efc9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f71274f0060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f71274f0124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f712e46a3bf in QEventDispatcherGlib::processEvents (this=0x21faad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f712f154d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f712e439c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f712e439ed7 in QEventLoop::exec (this=0x7fff343dc140, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f712e43ef67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#27 0x00007f71319fc3e2 in kdemain (argc=3, argv=0x7fff343dc6c8) at ../../kmix/apps/main.cpp:76
#28 0x00007f713161e76d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=3, ubp_av=0x7fff343dc6c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff343dc6b8) at libc-start.c:226
#29 0x0000000000400661 in _start ()

Possible duplicates by query: bug 300391, bug 300302, bug 299650, bug 298757, bug 298324.

Reported using DrKonqi