Bug 311123

Application: kmix (4.3)
KDE Platform Version: 4.9.80
Qt Version: 4.8.3
Operating System: Linux 3.7.0-4-generic x86_64
Distribution: Ubuntu Raring Ringtail (development branch)

-- Information about the crash:
kmix/Mixer/Capture Devices: trying to move the slide bar (sound volume) for "Built-in Audo Analog Stereo" -- the only device listed -- causes immediate crash.

-- 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 0x7fc20ea717c0 (LWP 3457))]

Thread 2 (Thread 0x7fc1fdd6d700 (LWP 3915)):
#0  0x00007fc2232e144d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc218fd5d64 in g_main_context_poll (n_fds=1, fds=0x7fc1f8002be0, timeout=-1, context=0x7fc1f80009d0, priority=<optimized out>) at /build/buildd/glib2.0-2.34.2/./glib/gmain.c:3584
#2  g_main_context_iterate (context=context@entry=0x7fc1f80009d0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.34.2/./glib/gmain.c:3285
#3  0x00007fc218fd5e84 in g_main_context_iteration (context=0x7fc1f80009d0, may_block=1) at /build/buildd/glib2.0-2.34.2/./glib/gmain.c:3351
#4  0x00007fc22013bc16 in QEventDispatcherGlib::processEvents (this=0x7fc1f80008f0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fc22010c2bf in QEventLoop::processEvents (this=this@entry=0x7fc1fdd6ccd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fc22010c548 in QEventLoop::exec (this=0x7fc1fdd6ccd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fc22000db10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fc2200ec9af in QInotifyFileSystemWatcherEngine::run (this=0x10f9530) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fc220010aec in QThreadPrivate::start (arg=0x10f9530) at thread/qthread_unix.cpp:338
#10 0x00007fc2148ce2e4 in ?? () from /usr/lib/nvidia-experimental-310/libGL.so.1
#11 0x00007fc219b3ff9f in start_thread (arg=0x7fc1fdd6d700) at pthread_create.c:311
#12 0x00007fc2232ed0cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:114

Thread 1 (Thread 0x7fc20ea717c0 (LWP 3457)):
[KCrash Handler]
#6  QAbstractSlider::value (this=0x81) at widgets/qabstractslider.cpp:524
#7  0x00007fc223614eb6 in MDWSlider::volumeChange (this=0x13f5d50) at ../gui/mdwslider.cpp:867
#8  0x00007fc223617ef3 in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=<optimized out>, _c=<optimized out>) at ./mdwslider.moc:101
#9  MDWSlider::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./mdwslider.moc:81
#10 0x00007fc220122f5f in QMetaObject::activate (sender=0x132c780, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff08287e90) at kernel/qobject.cpp:3547
#11 0x00007fc2213d48ce in QAbstractSlider::valueChanged (this=<optimized out>, _t1=13419) at .moc/release-shared/moc_qabstractslider.cpp:196
#12 0x00007fc2211ba60a in QSlider::mouseMoveEvent (this=0x132c780, ev=<optimized out>) at widgets/qslider.cpp:514
#13 0x00007fc220db9884 in QWidget::event (this=0x132c780, event=0x7fff08288750) at kernel/qwidget.cpp:8356
#14 0x00007fc220d69e9c in QApplicationPrivate::notify_helper (this=this@entry=0xf07170, receiver=receiver@entry=0x132c780, e=e@entry=0x7fff08288750) at kernel/qapplication.cpp:4562
#15 0x00007fc220d6eb6b in QApplication::notify (this=<optimized out>, receiver=0x132c780, e=0x7fff08288750) at kernel/qapplication.cpp:4105
#16 0x00007fc222aed386 in KApplication::notify (this=0xeab550, receiver=0x132c780, event=0x7fff08288750) at ../../kdeui/kernel/kapplication.cpp:311
#17 0x00007fc22010d56e in QCoreApplication::notifyInternal (this=0xeab550, receiver=0x132c780, event=0x7fff08288750) at kernel/qcoreapplication.cpp:915
#18 0x00007fc220d6acd3 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#19 QApplicationPrivate::sendMouseEvent (receiver=0x132c780, event=0x7fff08288750, alienWidget=0x132c780, nativeWidget=0x13efaf0, buttonDown=0x7fc221846308 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3173
#20 0x00007fc220de8554 in QETWidget::translateMouseEvent (this=this@entry=0x13efaf0, event=event@entry=0x7fff08288ed0) at kernel/qapplication_x11.cpp:4622
#21 0x00007fc220de744f in QApplication::x11ProcessEvent (this=0xeab550, event=0x7fff08288ed0) at kernel/qapplication_x11.cpp:3737
#22 0x00007fc220e0efa2 in x11EventSourceDispatch (s=s@entry=0xf0b000, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#23 0x00007fc218fd5a95 in g_main_dispatch (context=0xf04a10) at /build/buildd/glib2.0-2.34.2/./glib/gmain.c:2715
#24 g_main_context_dispatch (context=context@entry=0xf04a10) at /build/buildd/glib2.0-2.34.2/./glib/gmain.c:3219
#25 0x00007fc218fd5dc8 in g_main_context_iterate (context=context@entry=0xf04a10, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.34.2/./glib/gmain.c:3290
#26 0x00007fc218fd5e84 in g_main_context_iteration (context=0xf04a10, may_block=1) at /build/buildd/glib2.0-2.34.2/./glib/gmain.c:3351
#27 0x00007fc22013bc16 in QEventDispatcherGlib::processEvents (this=0xefdbf0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#28 0x00007fc220e0ec1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x00007fc22010c2bf in QEventLoop::processEvents (this=this@entry=0x7fff082892a0, flags=...) at kernel/qeventloop.cpp:149
#30 0x00007fc22010c548 in QEventLoop::exec (this=0x7fff082892a0, flags=...) at kernel/qeventloop.cpp:204
#31 0x00007fc220111708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#32 0x00007fc2235fa89a in kdemain (argc=3, argv=0x7fff082894e8) at ../apps/main.cpp:76
#33 0x00007fc223217c15 in __libc_start_main (main=0x4006d0 <main(int, char**)>, argc=3, ubp_av=0x7fff082894e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff082894d8) at libc-start.c:227
#34 0x0000000000400701 in _start ()

Possible duplicates by query: bug 290742, bug 290197.

Reported using DrKonqi