Bug 297857

Application: kmix (4)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-22-generic x86_64
Distribution: Ubuntu precise (development branch)

-- Information about the crash:
KMix crashed when changing sound profile from HDMI to Internal and vice versa. This happen 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 0x7f472121f780 (LWP 3686))]

Thread 3 (Thread 0x7f4701e84700 (LWP 3687)):
#0  0x00007f4720ad8b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f47168e3ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f47168e4124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f471d85f426 in QEventDispatcherGlib::processEvents (this=0x7f46fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f471d82ec82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f471d82eed7 in QEventLoop::exec (this=0x7f4701e83dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f471d72dfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f471d80e9ff in QInotifyFileSystemWatcherEngine::run (this=0x1fd6920) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f471d730fcb in QThreadPrivate::start (arg=0x1fd6920) at thread/qthread_unix.cpp:298
#9  0x00007f471744ae9a in start_thread (arg=0x7f4701e84700) at pthread_create.c:308
#10 0x00007f4720ae44bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f4701477700 (LWP 3688)):
#0  0x00007f4720ad8b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f47168e3ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f47168e4124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f471d85f426 in QEventDispatcherGlib::processEvents (this=0x7f46f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f471d82ec82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f471d82eed7 in QEventLoop::exec (this=0x7f4701476dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f471d72dfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f471d80e9ff in QInotifyFileSystemWatcherEngine::run (this=0x1e17da0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f471d730fcb in QThreadPrivate::start (arg=0x1e17da0) at thread/qthread_unix.cpp:298
#9  0x00007f471744ae9a in start_thread (arg=0x7f4701477700) at pthread_create.c:308
#10 0x00007f4720ae44bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f472121f780 (LWP 3686)):
[KCrash Handler]
#6  0x00007f4720da88b8 in main_arena () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x00007f4720e04e26 in MDWSlider::update (this=0x20abe00) at ../../kmix/gui/mdwslider.cpp:1001
#8  0x00007f4720e0064b in ViewDockAreaPopup::refreshVolumeLevels (this=<optimized out>) at ../../kmix/gui/viewdockareapopup.cpp:168
#9  0x00007f471d844281 in QMetaObject::activate (sender=0x1ffba10, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007f471d844281 in QMetaObject::activate (sender=0x204ce90, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#11 0x00007f4720dd9b0c in Mixer_Backend::readSetFromHW (this=0x204ce90) at ../../kmix/backends/mixer_backend.cpp:155
#12 0x00007f4720de9df5 in sink_cb (c=<optimized out>, i=<optimized out>, eol=<optimized out>) at ../../kmix/backends/mixer_pulse.cpp:191
#13 0x00007f471f1c1944 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#14 0x00007f4716e02693 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#15 0x00007f4716e02a03 in pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#16 0x00007f471f1b7bdd in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#17 0x00007f4716e072a9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.1.so
#18 0x00007f471efa5ab3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse-mainloop-glib.so.0
#19 0x00007f47168e3c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f47168e4060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f47168e4124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f471d85f3bf in QEventDispatcherGlib::processEvents (this=0x1c0cad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#23 0x00007f471e549d6e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#24 0x00007f471d82ec82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#25 0x00007f471d82eed7 in QEventLoop::exec (this=0x7fff77790920, flags=...) at kernel/qeventloop.cpp:204
#26 0x00007f471d833f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#27 0x00007f4720df13e2 in kdemain (argc=1, argv=0x7fff77790ea8) at ../../kmix/apps/main.cpp:76
#28 0x00007f4720a1376d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff77790ea8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff77790e98) at libc-start.c:226
#29 0x0000000000400661 in _start ()

This bug may be a duplicate of or related to bug 296449.

Possible duplicates by query: bug 297834, bug 297754, bug 297751, bug 297574, bug 297547.

Reported using DrKonqi