Bug 301221

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:
I watched videos with kaffeine and, when the videos changing, kmix crashed.

The crash can be reproduced every time.

-- Backtrace:
Application: KMix (kmix), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fcc1316a7a0 (LWP 6725))]

Thread 3 (Thread 0x7fcbf3e92700 (LWP 6726)):
#0  pthread_mutex_unlock (mutex=0x26fd438) at forward.c:184
#1  0x00007fcc08b77fe4 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc08b78dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc08b79429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcc0f7ed5a6 in QEventDispatcherGlib::processEvents (this=0x26fc5e0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fcc0f7bcd82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fcc0f7bcfd7 in QEventLoop::exec (this=0x7fcbf3e91db0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fcc0f6bc077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fcc0f79caff in QInotifyFileSystemWatcherEngine::run (this=0x26b72d0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fcc0f6bf09b in QThreadPrivate::start (arg=0x26b72d0) at thread/qthread_unix.cpp:298
#10 0x00007fcc096e2efc in start_thread (arg=0x7fcbf3e92700) at pthread_create.c:304
#11 0x00007fcc12a4c59d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fcbf3691700 (LWP 6727)):
#0  0x00007fcc12a40473 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fcc08b78f68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcc08b79429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcc0f7ed5a6 in QEventDispatcherGlib::processEvents (this=0x2788de0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fcc0f7bcd82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fcc0f7bcfd7 in QEventLoop::exec (this=0x7fcbf3690db0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fcc0f6bc077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fcc0f79caff in QInotifyFileSystemWatcherEngine::run (this=0x2444d50) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fcc0f6bf09b in QThreadPrivate::start (arg=0x2444d50) at thread/qthread_unix.cpp:298
#9  0x00007fcc096e2efc in start_thread (arg=0x7fcbf3691700) at pthread_create.c:304
#10 0x00007fcc12a4c59d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fcc1316a7a0 (LWP 6725)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007fcc12d5f756 in MDWSlider::update (this=0x2762c60) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007fcc12d5b00b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007fcc12d58311 in ViewBase::qt_metacall (this=0x275a5d0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff5bfa2280) at ./viewbase.moc:87
#10 0x00007fcc12d5a9e0 in ViewDockAreaPopup::qt_metacall (this=0x275a5d0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff5bfa2280) at ./viewdockareapopup.moc:73
#11 0x00007fcc0f7d2589 in QMetaObject::activate (sender=0x26ebd10, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3566
#12 0x00007fcc12d770cc in Mixer::qt_metacall (this=0x26ebd10, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff5bfa23d0) at ./mixer.moc:82
#13 0x00007fcc0f7d2589 in QMetaObject::activate (sender=0x26ec1d0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3566
#14 0x00007fcc12d3438c in Mixer_Backend::readSetFromHW (this=0x26ec1d0) at ../../kmix/backends/mixer_backend.cpp:155
#15 0x00007fcc12d44725 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#16 0x00007fcc1114cce4 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007fcc0909a5f3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#18 0x00007fcc0909a963 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#19 0x00007fcc11142c1d in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#20 0x00007fcc0909f209 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#21 0x00007fcc10f30b23 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#22 0x00007fcc08b78a5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fcc08b79258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fcc08b79429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fcc0f7ed53f in QEventDispatcherGlib::processEvents (this=0x2361ad0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#26 0x00007fcc104d44ee in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#27 0x00007fcc0f7bcd82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x00007fcc0f7bcfd7 in QEventLoop::exec (this=0x7fff5bfa2fa0, flags=...) at kernel/qeventloop.cpp:204
#29 0x00007fcc0f7c2067 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#30 0x00007fcc12d4bcc2 in kdemain (argc=1, argv=0x7fff5bfa3528) at ../../kmix/apps/main.cpp:76
#31 0x00007fcc1298a30d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff5bfa3528, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff5bfa3518) at libc-start.c:226
#32 0x0000000000400661 in _start ()

Possible duplicates by query: bug 300652, bug 299167, bug 298661, bug 298495, bug 298305.

Reported using DrKonqi