Bug 296639

Application: kmix (4)
KDE Platform Version: 4.8.1 (4.8.1)
Qt Version: 4.8.0
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:
After the Logon I did nothing.
It doesn't happen every time but most times.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f4e1236d7a0 (LWP 3159))]

Thread 3 (Thread 0x7f4df279c700 (LWP 3178)):
#0  0x00007f4e11c50473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f4e07d88f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4e07d89429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4e0e9fdc26 in QEventDispatcherGlib::processEvents (this=0x17f82a0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f4e0e9cd402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f4e0e9cd657 in QEventLoop::exec (this=0x7f4df279bdb0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f4e0e8cd067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f4e0e9ad17f in QInotifyFileSystemWatcherEngine::run (this=0x17d9ee0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f4e0e8d008b in QThreadPrivate::start (arg=0x17d9ee0) at thread/qthread_unix.cpp:298
#9  0x00007f4e088f2efc in start_thread (arg=0x7f4df279c700) at pthread_create.c:304
#10 0x00007f4e11c5c59d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f4dedd8f700 (LWP 3187)):
#0  0x00007f4e088f61fd in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x19e3a88) at pthread_mutex_unlock.c:290
#2  0x00007f4e07d88900 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4e07d89258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4e07d89429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4e0e9fdc26 in QEventDispatcherGlib::processEvents (this=0x19e2b50, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f4e0e9cd402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f4e0e9cd657 in QEventLoop::exec (this=0x7f4dedd8edb0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f4e0e8cd067 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f4e0e9ad17f in QInotifyFileSystemWatcherEngine::run (this=0x19e1690) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f4e0e8d008b in QThreadPrivate::start (arg=0x19e1690) at thread/qthread_unix.cpp:298
#11 0x00007f4e088f2efc in start_thread (arg=0x7f4dedd8f700) at pthread_create.c:304
#12 0x00007f4e11c5c59d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f4e1236d7a0 (LWP 3159)):
[KCrash Handler]
#6  0x00007f4e10101c20 in typeinfo for QGesture () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#7  0x00007f4e11f6f756 in MDWSlider::update (this=0x19cc540) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007f4e11f6b00b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007f4e11f68311 in ViewBase::qt_metacall (this=0x19bcd30, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff8f111c00) at ./viewbase.moc:87
#10 0x00007f4e11f6a9e0 in ViewDockAreaPopup::qt_metacall (this=0x19bcd30, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff8f111c00) at ./viewdockareapopup.moc:73
#11 0x00007f4e0e9e2c09 in QMetaObject::activate (sender=0x1781ee0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3566
#12 0x00007f4e11f870cc in Mixer::qt_metacall (this=0x1781ee0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff8f111d50) at ./mixer.moc:82
#13 0x00007f4e0e9e2c09 in QMetaObject::activate (sender=0x179b6f0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3566
#14 0x00007f4e11f4438c in Mixer_Backend::readSetFromHW (this=0x179b6f0) at ../../kmix/backends/mixer_backend.cpp:155
#15 0x00007f4e11f54725 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#16 0x00007f4e1035cce4 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007f4e082aa5f3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#18 0x00007f4e082aa963 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#19 0x00007f4e10352c1d in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#20 0x00007f4e082af209 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#21 0x00007f4e10140b23 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#22 0x00007f4e07d88a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f4e07d89258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f4e07d89429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007f4e0e9fdbbf in QEventDispatcherGlib::processEvents (this=0x14abad0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#26 0x00007f4e0f6e428e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007f4e0e9cd402 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007f4e0e9cd657 in QEventLoop::exec (this=0x7fff8f112920, flags=...) at kernel/qeventloop.cpp:204
#29 0x00007f4e0e9d26e7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#30 0x00007f4e11f5bcc2 in kdemain (argc=3, argv=0x7fff8f112ea8) at ../../kmix/apps/main.cpp:76
#31 0x00007f4e11b9a30d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=3, ubp_av=0x7fff8f112ea8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff8f112e98) at libc-start.c:226
#32 0x0000000000400661 in _start ()

Possible duplicates by query: bug 296628, bug 296592, bug 296392, bug 296102.

Reported using DrKonqi