Application: kmix (4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-23-generic x86_64
Distribution: Ubuntu precise (development branch)

-- Information about the crash:
- What I was doing when the application crashed:

KMix (KDE 4.8.2, Kubuntu 12.04, 64 bit) has crashed when changing volume with the volume keys of a Thinkpad. The KMix window had been iconified at the time of crash. Using the latest Kubuntu 12.04 beta (all updates installed, April 18, 2012).

-- 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 0x7f8563d45780 (LWP 10514))]

Thread 3 (Thread 0x7f8543aa0700 (LWP 10515)):
#0  g_mutex_unlock (mutex=0x7f853c0009a0) at /build/buildd/glib2.0-2.32.1/./glib/gthread-posix.c:224
#1  0x00007f855941da09 in g_main_context_check (context=0x7f853c0009a0, max_priority=2147483647, fds=<optimized out>, n_fds=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3034
#2  0x00007f855941df96 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f853c0009a0, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3120
#3  g_main_context_iterate (context=0x7f853c0009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#4  0x00007f855941e124 in g_main_context_iteration (context=0x7f853c0009a0, may_block=1) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3184
#5  0x00007f8560398426 in QEventDispatcherGlib::processEvents (this=0x7f853c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f8560367c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f8560367ed7 in QEventLoop::exec (this=0x7f8543a9fdd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f8560266fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f85603479ff in QInotifyFileSystemWatcherEngine::run (this=0xf44690) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f8560269fcb in QThreadPrivate::start (arg=0xf44690) at thread/qthread_unix.cpp:298
#11 0x00007f8559f84e9a in start_thread (arg=0x7f8543aa0700) at pthread_create.c:308
#12 0x00007f856361d4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f8543093700 (LWP 10516)):
#0  0x00007f85636100bd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f855945888f in read (__nbytes=16, __buf=0x7f8543092c50, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:45
#2  g_wakeup_acknowledge (wakeup=0x7f853c001fb0) at /build/buildd/glib2.0-2.32.1/./glib/gwakeup.c:212
#3  0x00007f855941dabd in g_main_context_check (context=0x7f85300009a0, max_priority=2147483647, fds=0x7f85300029b0, n_fds=1) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:2957
#4  0x00007f855941df96 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7f85300009a0, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3120
#5  g_main_context_iterate (context=0x7f85300009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#6  0x00007f855941e124 in g_main_context_iteration (context=0x7f85300009a0, may_block=1) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3184
#7  0x00007f8560398426 in QEventDispatcherGlib::processEvents (this=0x7f85300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#8  0x00007f8560367c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#9  0x00007f8560367ed7 in QEventLoop::exec (this=0x7f8543092dd0, flags=...) at kernel/qeventloop.cpp:204
#10 0x00007f8560266fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#11 0x00007f85603479ff in QInotifyFileSystemWatcherEngine::run (this=0x1006670) at io/qfilesystemwatcher_inotify.cpp:248
#12 0x00007f8560269fcb in QThreadPrivate::start (arg=0x1006670) at thread/qthread_unix.cpp:298
#13 0x00007f8559f84e9a in start_thread (arg=0x7f8543093700) at pthread_create.c:308
#14 0x00007f856361d4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f8563d45780 (LWP 10514)):
[KCrash Handler]
#6  0x00007f856393de23 in MDWSlider::update (this=0xfda320) at ../../kmix/gui/mdwslider.cpp:1001
#7  0x00007f856393964b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#8  0x00007f856037d281 in QMetaObject::activate (sender=0xf4db30, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#9  0x00007f856037d281 in QMetaObject::activate (sender=0xf57680, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007f8563912b0c in Mixer_Backend::readSetFromHW (this=0xf57680) at ../../kmix/backends/mixer_backend.cpp:155
#11 0x00007f8563922df5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#12 0x00007f8561cfa944 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#13 0x00007f855993c693 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#14 0x00007f855993ca03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#15 0x00007f8561cf0bdd in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#16 0x00007f85599412a9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#17 0x00007f8561adeab3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#18 0x00007f855941dc9a in g_main_dispatch (context=0xba89e0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:2515
#19 g_main_context_dispatch (context=0xba89e0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3052
#20 0x00007f855941e060 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0xba89e0, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3123
#21 g_main_context_iterate (context=0xba89e0, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
#22 0x00007f855941e124 in g_main_context_iteration (context=0xba89e0, may_block=1) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3184
#23 0x00007f85603983bf in QEventDispatcherGlib::processEvents (this=0xb6bad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#24 0x00007f8561082d6e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#25 0x00007f8560367c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#26 0x00007f8560367ed7 in QEventLoop::exec (this=0x7fff0bae3a60, flags=...) at kernel/qeventloop.cpp:204
#27 0x00007f856036cf67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#28 0x00007f856392a3e2 in kdemain (argc=1, argv=0x7fff0bae3fe8) at ../../kmix/apps/main.cpp:76
#29 0x00007f856354c76d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff0bae3fe8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff0bae3fd8) at libc-start.c:226
#30 0x0000000000400661 in _start ()

Possible duplicates by query: bug 298324, bug 298305, bug 298279, bug 298272, bug 298269.

Reported using DrKonqi