Bug 300391

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:
- What I was doing when the application crashed:

I'm using Lubuntu but occasionally use kmix to use its feature of moving an active playback stream to another device. Currently kmix crashes when I try to start it though. pavucontrol works without problems.

The crash can be reproduced every 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 0x7f9d43c91780 (LWP 2101))]

Thread 3 (Thread 0x7f9d26e0f700 (LWP 2103)):
#0  0x00007f9d39ed4d63 in __pthread_getspecific (key=3) at pthread_getspecific.c:32
#1  0x00007f9d3938ae80 in g_thread_self () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9d393680ab in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9d39368ec4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9d3936945a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9d2d38a2c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007f9d3938a9a5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f9d39ecfe9a in start_thread (arg=0x7f9d26e0f700) at pthread_create.c:308
#8  0x00007f9d435684bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f9d1d40d700 (LWP 2131)):
#0  0x00007f9d39ed1f4a in __pthread_mutex_lock (mutex=0x7f9d00000a60) at pthread_mutex_lock.c:87
#1  0x00007f9d393a4561 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f9d39368824 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9d39368f6a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9d39369124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9d402e3426 in QEventDispatcherGlib::processEvents (this=0x7f9d000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f9d402b2c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f9d402b2ed7 in QEventLoop::exec (this=0x7f9d1d40cdd0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f9d401b1fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f9d402929ff in QInotifyFileSystemWatcherEngine::run (this=0x170e6e0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f9d401b4fcb in QThreadPrivate::start (arg=0x170e6e0) at thread/qthread_unix.cpp:298
#11 0x00007f9d39ecfe9a in start_thread (arg=0x7f9d1d40d700) at pthread_create.c:308
#12 0x00007f9d435684bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9d43c91780 (LWP 2101)):
[KCrash Handler]
#6  0x00007f9d419eac00 in typeinfo for QGesture () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#7  0x00007f9d43888e26 in MDWSlider::update (this=0x1704630) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007f9d4388464b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007f9d402c8281 in QMetaObject::activate (sender=0x15019b0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007f9d402c8281 in QMetaObject::activate (sender=0x1540f30, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x00007f9d4385db0c in Mixer_Backend::readSetFromHW (this=0x1540f30) at ../../kmix/backends/mixer_backend.cpp:155
#12 0x00007f9d4386ddf5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#13 0x00007f9d41c45944 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#14 0x00007f9d39887693 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#15 0x00007f9d39887a03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#16 0x00007f9d41c3bbdd in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007f9d3988c2a9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#18 0x00007f9d41a29ab3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#19 0x00007f9d39368c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f9d39369060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f9d39369124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f9d402e33bf in QEventDispatcherGlib::processEvents (this=0x11fbad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f9d40fcdd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f9d402b2c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f9d402b2ed7 in QEventLoop::exec (this=0x7fff1ce658f0, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f9d402b7f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#27 0x00007f9d438753e2 in kdemain (argc=1, argv=0x7fff1ce65e78) at ../../kmix/apps/main.cpp:76
#28 0x00007f9d4349776d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff1ce65e78, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1ce65e68) at libc-start.c:226
#29 0x0000000000400661 in _start ()

Possible duplicates by query: bug 300302, bug 299650, bug 298757, bug 298324, bug 298116.

Reported using DrKonqi