Application: kmix (4.3)
KDE Platform Version: 4.10.00
Qt Version: 4.8.2
Operating System: Linux 3.5.0-23-generic i686
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
Kmix crash when I transfer of a sound to headphones through pulseaudio. I have two virtual devices: headphones and speakers. Kmix crash when I sink to headphones or speakers

The crash can be reproduced every time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xafdc8740 (LWP 5227))]

Thread 3 (Thread 0xa81ccb40 (LWP 5228)):
#0  0xb2f2acd1 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#1  0xb762f904 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2def3d0 in g_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2db008c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2db0201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5c24db7 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#6  0xb5bf067d in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#7  0xb5bf0919 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#8  0xb5ad99ec in QThread::exec() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#9  0xb5bcdccd in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#10 0xb5adce80 in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#11 0xb22e1ef1 in ?? () from /usr/lib/nvidia-experimental-310/libGL.so.1
#12 0x5c8b0824 in ?? ()
#13 0xbab80424 in ?? ()
#14 0x65000000 in ?? ()
#15 0x001015ff in ?? ()
#16 0xd3890000 in ?? ()
#17 0xfff0013d in ?? ()
#18 0xc30173ff in ?? ()
#19 0x0fc442e8 in ?? ()
#20 0xafc18100 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 2 (Thread 0xa37feb40 (LWP 5229)):
#0  0xb779e424 in __kernel_vsyscall ()
#1  0xb7613690 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0xb2dbda7b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb2db00ae in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb2db0201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb5c24db7 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#6  0xb5bf067d in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#7  0xb5bf0919 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#8  0xb5ad99ec in QThread::exec() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#9  0xb5bcdccd in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#10 0xb5adce80 in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#11 0xb22e1ef1 in ?? () from /usr/lib/nvidia-experimental-310/libGL.so.1
#12 0x5c8b0824 in ?? ()
#13 0xbab80424 in ?? ()
#14 0x65000000 in ?? ()
#15 0x001015ff in ?? ()
#16 0xd3890000 in ?? ()
#17 0xfff0013d in ?? ()
#18 0xc30173ff in ?? ()
#19 0x0fc442e8 in ?? ()
#20 0xafc18100 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 0xafdc8740 (LWP 5227)):
[KCrash Handler]
#7  0xb5c06de5 in QMetaObject::changeGuard(QObject**, QObject*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#8  0xb66a28d9 in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#9  0xb66a5595 in QMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#10 0xb72d60ec in KMenu::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libkdeui.so.5
#11 0xb623affc in QWidget::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#12 0xb66a401c in QMenu::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#13 0xb61e0df4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#14 0xb61e6e74 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#15 0xb71f79a1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#16 0xb5bf1dde in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#17 0xb61e1db5 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#18 0xb626e6f2 in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#19 0xb626cb2d in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#20 0xb6299e1c in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#21 0xb2dafd86 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#22 0xb2db0125 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#23 0xb2db0201 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#24 0xb5c24d57 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#25 0xb6299a1a in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#26 0xb5bf067d in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#27 0xb5bf0919 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#28 0xb5bf631a in QCoreApplication::exec() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
#29 0xb61de9c4 in QApplication::exec() () from /usr/lib/i386-linux-gnu/libQtGui.so.4
#30 0xb77369eb in kdemain (argc=5, argv=0xbfd87bd4) at ../apps/main.cpp:76
#31 0x080484fb in main (argc=5, argv=0xbfd87bd4) at kmix_dummy.cpp:3

Possible duplicates by query: bug 301418.

Reported using DrKonqi