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:
I started Kubuntu
This Bug persists since 3 month.
Upgrading from 11.10 to 12.04 didn't stop this Bug.

The crash can be reproduced some of the time.

-- 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 0x7fe78b164780 (LWP 3420))]

Thread 3 (Thread 0x7fe76add3700 (LWP 3438)):
#0  0x00007fe78aa360bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fe78087e88f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe780843abd in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe780843f96 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe780844124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe7877be426 in QEventDispatcherGlib::processEvents (this=0x7fe7640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fe78778dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fe78778ded7 in QEventLoop::exec (this=0x7fe76add2dd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fe78768cfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fe78776d9ff in QInotifyFileSystemWatcherEngine::run (this=0x11050e0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fe78768ffcb in QThreadPrivate::start (arg=0x11050e0) at thread/qthread_unix.cpp:298
#11 0x00007fe7813aae9a in start_thread (arg=0x7fe76add3700) at pthread_create.c:308
#12 0x00007fe78aa434bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fe76a3c6700 (LWP 3441)):
#0  0x00007fff639328de in ?? ()
#1  0x00007fe78119f15d in __GI_clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:116
#2  0x00007fe7876e6bb4 in do_gettime (frac=0x7fe76a3c5b98, sec=0x7fe76a3c5b90) at tools/qelapsedtimer_unix.cpp:123
#3  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#4  0x00007fe7877beb8d in QTimerInfoList::updateCurrentTime (this=0x7fe758002660) at kernel/qeventdispatcher_unix.cpp:343
#5  0x00007fe7877beec3 in QTimerInfoList::timerWait (this=0x7fe758002660, tm=...) at kernel/qeventdispatcher_unix.cpp:450
#6  0x00007fe7877bd97c in timerSourcePrepareHelper (src=<optimized out>, timeout=0x7fe76a3c5c6c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007fe7877bda25 in timerSourcePrepare (source=<optimized out>, timeout=<optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007fe78084371e in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fe780843f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fe780844124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fe7877be426 in QEventDispatcherGlib::processEvents (this=0x7fe7580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#12 0x00007fe78778dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#13 0x00007fe78778ded7 in QEventLoop::exec (this=0x7fe76a3c5dd0, flags=...) at kernel/qeventloop.cpp:204
#14 0x00007fe78768cfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#15 0x00007fe78776d9ff in QInotifyFileSystemWatcherEngine::run (this=0x1393ce0) at io/qfilesystemwatcher_inotify.cpp:248
#16 0x00007fe78768ffcb in QThreadPrivate::start (arg=0x1393ce0) at thread/qthread_unix.cpp:298
#17 0x00007fe7813aae9a in start_thread (arg=0x7fe76a3c6700) at pthread_create.c:308
#18 0x00007fe78aa434bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe78b164780 (LWP 3420)):
[KCrash Handler]
#6  0x00007fe788ec5c00 in typeinfo for QGesture () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#7  0x00007fe78ad63e26 in MDWSlider::update (this=0x137e0e0) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007fe78ad5f64b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007fe7877a3281 in QMetaObject::activate (sender=0x10a5510, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007fe7877a3281 in QMetaObject::activate (sender=0x112a010, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x00007fe78ad38b0c in Mixer_Backend::readSetFromHW (this=0x112a010) at ../../kmix/backends/mixer_backend.cpp:155
#12 0x00007fe78ad48df5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#13 0x00007fe789120944 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#14 0x00007fe780d62693 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#15 0x00007fe780d62a03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#16 0x00007fe789116bdd in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007fe780d672a9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#18 0x00007fe788f04ab3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#19 0x00007fe780843c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fe780844060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fe780844124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fe7877be3bf in QEventDispatcherGlib::processEvents (this=0xe99ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007fe7884a8d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007fe78778dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007fe78778ded7 in QEventLoop::exec (this=0x7fff638959a0, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007fe787792f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#27 0x00007fe78ad503e2 in kdemain (argc=3, argv=0x7fff63895f28) at ../../kmix/apps/main.cpp:76
#28 0x00007fe78a97276d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=3, ubp_av=0x7fff63895f28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff63895f18) at libc-start.c:226
#29 0x0000000000400661 in _start ()

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

Possible duplicates by query: bug 298757, bug 298324, bug 298116, bug 297754, bug 297515.

Reported using DrKonqi