Application: amarok (2.4.3)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-12-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed:
* I was trying to change the volume. 
* I was listening mp3 file.
* Same issue when trying to increase or decrease the volume.
* Changing the volume using Pulse Audio is ok.
* It was working on Ubuntu 11.04
* Same issue if I am using phonon-backend-gstreamer or phonon-backend-vlc

- Custom settings of the application:
* Ubuntu 11.10 x64 (Gnome Shell)
* Amarok V2.4.3
* KDE 4.7.2 (4.7.2)
* pulseaudio 1:1.0-0ubuntu3
* phonon-backend-gstreamer 4:4.7.0really4.5.1-1ubuntu3
* phonon-backend-vlc 0.4.1-1

The crash can be reproduced every time.

-- Backtrace:
Application: Amarok (amarok), signal: Aborted
[Current thread is 1 (Thread 0x7f292ea657c0 (LWP 2743))]

Thread 18 (Thread 0x7f291180c700 (LWP 2745)):
#0  0x00007f2927bc4034 in __pthread_mutex_lock (mutex=0x16fc968) at pthread_mutex_lock.c:61
#1  0x00007f292611c361 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f292611ce6a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f292611d792 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f2917d6b516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f29261422b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#7  0x00007f2927bc1efc in start_thread (arg=0x7f291180c700) at pthread_create.c:304
#8  0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 17 (Thread 0x7f28ff187700 (LWP 2750)):
#0  0x00007f292611c093 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f292611cdfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f292611d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f292bd2ff3e in QEventDispatcherGlib::processEvents (this=0x2004b20, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f292bd03cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f292bd03ef7 in QEventLoop::exec (this=0x7f28ff186cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f292bc1b27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f292bce6cbf in QInotifyFileSystemWatcherEngine::run (this=0x1fd50c0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f292bc1dd05 in QThreadPrivate::start (arg=0x1fd50c0) at thread/qthread_unix.cpp:331
#9  0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f2927bc1efc in start_thread (arg=0x7f28ff187700) at pthread_create.c:304
#11 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 16 (Thread 0x7f28f80b1700 (LWP 2751)):
#0  0x00007f292b3b1773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f292611cf68 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f292611d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f292bd2ff3e in QEventDispatcherGlib::processEvents (this=0x2214120, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f292bd03cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f292bd03ef7 in QEventLoop::exec (this=0x7f28f80b0d00, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f292bc1b27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f292bc1dd05 in QThreadPrivate::start (arg=0x22137c0) at thread/qthread_unix.cpp:331
#8  0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f2927bc1efc in start_thread (arg=0x7f28f80b1700) at pthread_create.c:304
#10 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7f28f686c700 (LWP 2753)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f292bc1e1ab in wait (time=18446744073709551615, this=0x22676d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x22678f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f2929152864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2267530, th=0x2267de0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f2929154e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x2267de0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f2929154e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x2267de0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f2929154e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x2267de0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f2929153ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f28f686bd20, parent=0x2267530, th=0x2267de0) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007f2929153d5b in ThreadWeaver::Thread::run (this=0x2267de0) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007f292bc1dd05 in QThreadPrivate::start (arg=0x2267de0) at thread/qthread_unix.cpp:331
#10 0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#11 0x00007f2927bc1efc in start_thread (arg=0x7f28f686c700) at pthread_create.c:304
#12 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7f28f5580700 (LWP 2754)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f292bc1e1ab in wait (time=18446744073709551615, this=0x22676d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x22678f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f2929152864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2267530, th=0x23bf1a0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f2929154e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x23bf1a0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f2929153ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f28f557fd20, parent=0x2267530, th=0x23bf1a0) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f2929153d5b in ThreadWeaver::Thread::run (this=0x23bf1a0) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f292bc1dd05 in QThreadPrivate::start (arg=0x23bf1a0) at thread/qthread_unix.cpp:331
#8  0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f2927bc1efc in start_thread (arg=0x7f28f5580700) at pthread_create.c:304
#10 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7f28f4ac4700 (LWP 2755)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f292bc1e1ab in wait (time=18446744073709551615, this=0x22676d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x22678f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f2929152864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2267530, th=0x23ef740) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f2929154e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x23ef740) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f2929153ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f28f4ac3d20, parent=0x2267530, th=0x23ef740) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007f2929153d5b in ThreadWeaver::Thread::run (this=0x23ef740) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007f292bc1dd05 in QThreadPrivate::start (arg=0x23ef740) at thread/qthread_unix.cpp:331
#8  0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#9  0x00007f2927bc1efc in start_thread (arg=0x7f28f4ac4700) at pthread_create.c:304
#10 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7f28effff700 (LWP 2756)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f292bc1e1ab in wait (time=18446744073709551615, this=0x22676d0) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x22678f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f2929152864 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2267530, th=0x7f28f00067e0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007f2929154e0b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x7f28f00067e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007f2929154e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x7f28f00067e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007f2929154e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x7f28f00067e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007f2929154e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x7f28f00067e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007f2929154e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x7f28f00067e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#9  0x00007f2929154e24 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2267a10, th=0x7f28f00067e0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#10 0x00007f2929153ccf in ThreadWeaver::ThreadRunHelper::run (this=0x7f28efffed20, parent=0x2267530, th=0x7f28f00067e0) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00007f2929153d5b in ThreadWeaver::Thread::run (this=0x7f28f00067e0) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x00007f292bc1dd05 in QThreadPrivate::start (arg=0x7f28f00067e0) at thread/qthread_unix.cpp:331
#13 0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#14 0x00007f2927bc1efc in start_thread (arg=0x7f28effff700) at pthread_create.c:304
#15 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#16 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7f28ef3d9700 (LWP 2757)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f2922b77c2c in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f2922b77d59 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f2927bc1efc in start_thread (arg=0x7f28ef3d9700) at pthread_create.c:304
#5  0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7f28e89b9700 (LWP 2760)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f292819dfe2 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f292819e019 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#4  0x00007f2927bc1efc in start_thread (arg=0x7f28e89b9700) at pthread_create.c:304
#5  0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f291200d700 (LWP 2764)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f291e0eb1cf in gst_base_sink_wait_preroll () from /usr/lib/libgstbase-0.10.so.0
#2  0x00007f291e0eb34d in gst_base_sink_do_preroll () from /usr/lib/libgstbase-0.10.so.0
#3  0x00007f291e0ed18b in ?? () from /usr/lib/libgstbase-0.10.so.0
#4  0x00007f291e0ef3df in ?? () from /usr/lib/libgstbase-0.10.so.0
#5  0x00007f291e0ef737 in ?? () from /usr/lib/libgstbase-0.10.so.0
#6  0x00007f291e0efb1f in ?? () from /usr/lib/libgstbase-0.10.so.0
#7  0x00007f291de43452 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#8  0x00007f291de46cf6 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#9  0x00007f291e0fce87 in ?? () from /usr/lib/libgstbase-0.10.so.0
#10 0x00007f291de43452 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#11 0x00007f291de46cf6 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#12 0x00007f291e0fce87 in ?? () from /usr/lib/libgstbase-0.10.so.0
#13 0x00007f291de43452 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#14 0x00007f291de46cf6 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#15 0x00007f291e0fce87 in ?? () from /usr/lib/libgstbase-0.10.so.0
#16 0x00007f291de43452 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#17 0x00007f291de46cf6 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#18 0x00007f28fd8d76ea in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#19 0x00007f291de6d064 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#20 0x00007f29261447d8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f29261422b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#23 0x00007f2927bc1efc in start_thread (arg=0x7f291200d700) at pthread_create.c:304
#24 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#25 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f28de548700 (LWP 2765)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f28fd8d67dd in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#2  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#3  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#4  0x00007f28fd8e1200 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#5  0x00007f28fd8e164f in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#6  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#7  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#8  0x00007f291e0fce87 in ?? () from /usr/lib/libgstbase-0.10.so.0
#9  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#10 0x00007f291e0fce87 in ?? () from /usr/lib/libgstbase-0.10.so.0
#11 0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#12 0x00007f28fd8d76ea in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#13 0x00007f291de6d064 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#14 0x00007f29261447d8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f29261422b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#17 0x00007f2927bc1efc in start_thread (arg=0x7f28de548700) at pthread_create.c:304
#18 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f28ddd47700 (LWP 2766)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f28fd8d67dd in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#2  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#3  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#4  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#5  0x00007f28de7dbc9c in ?? () from /usr/lib/gstreamer-0.10/libgstflump3dec.so
#6  0x00007f28de7dcb7f in ?? () from /usr/lib/gstreamer-0.10/libgstflump3dec.so
#7  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#8  0x00007f291e0e0c7f in gst_base_parse_push_frame () from /usr/lib/libgstbase-0.10.so.0
#9  0x00007f291e0e188e in ?? () from /usr/lib/libgstbase-0.10.so.0
#10 0x00007f291e0e3b6d in ?? () from /usr/lib/libgstbase-0.10.so.0
#11 0x00007f291de6d064 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#12 0x00007f29261447d8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f29261422b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#15 0x00007f2927bc1efc in start_thread (arg=0x7f28ddd47700) at pthread_create.c:304
#16 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#17 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f28dd546700 (LWP 2767)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f28fd8d67dd in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#2  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#3  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#4  0x00007f28fd8e1200 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#5  0x00007f28fd8e164f in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#6  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#7  0x00007f28fd8d76ea in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#8  0x00007f291de6d064 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#9  0x00007f29261447d8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f29261422b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#12 0x00007f2927bc1efc in start_thread (arg=0x7f28dd546700) at pthread_create.c:304
#13 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#14 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f28f7477700 (LWP 2780)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f292bc1e1ab in wait (time=18446744073709551615, this=0x7f290c76f930) at thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x7f290cf220f8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f292cbf47d4 in QFileInfoGatherer::run (this=0x7f290cf220e8) at dialogs/qfileinfogatherer.cpp:214
#4  0x00007f292bc1dd05 in QThreadPrivate::start (arg=0x7f290cf220e8) at thread/qthread_unix.cpp:331
#5  0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007f2927bc1efc in start_thread (arg=0x7f28f7477700) at pthread_create.c:304
#7  0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f289b4be700 (LWP 2781)):
#0  pthread_mutex_lock (mutex=0x7f28f009fc28) at forward.c:182
#1  0x00007f292611cfcc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f292611d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f292bd2ff3e in QEventDispatcherGlib::processEvents (this=0x15deb10, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f292bd03cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f292bd03ef7 in QEventLoop::exec (this=0x7f289b4bdcd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f292bc1b27f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x00007f292bce6cbf in QInotifyFileSystemWatcherEngine::run (this=0x7f290cf23470) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f292bc1dd05 in QThreadPrivate::start (arg=0x7f290cf23470) at thread/qthread_unix.cpp:331
#9  0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007f2927bc1efc in start_thread (arg=0x7f289b4be700) at pthread_create.c:304
#11 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f28dcd45700 (LWP 2881)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f28fd8d67dd in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#2  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#3  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#4  0x00007f28fd8e164f in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#5  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#6  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#7  0x00007f291e0fce87 in ?? () from /usr/lib/libgstbase-0.10.so.0
#8  0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#9  0x00007f291e0fce87 in ?? () from /usr/lib/libgstbase-0.10.so.0
#10 0x00007f291de46e0a in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#11 0x00007f28fd8d76ea in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#12 0x00007f291de6d064 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#13 0x00007f29261447d8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f29261422b6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#16 0x00007f2927bc1efc in start_thread (arg=0x7f28dcd45700) at pthread_create.c:304
#17 0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#18 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f2902990700 (LWP 3103)):
#0  0x00007f292b3b1773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f292378703f in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f292377845c in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f2923778ac9 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f2923778b80 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f2923786fef in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f291ee46c78 in ?? () from /usr/lib/x86_64-linux-gnu/libpulsecommon-1.0.so
#7  0x00007f291d2dc56c in ?? () from /usr/lib/nvidia-current/libGL.so.1
#8  0x00007f2927bc1efc in start_thread (arg=0x7f2902990700) at pthread_create.c:304
#9  0x00007f292b3bd89d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f292ea657c0 (LWP 2743)):
[KCrash Handler]
#6  0x00007f292b3123a5 in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007f292b315b0b in __GI_abort () at abort.c:92
#8  0x00007f292bc1443b in qt_message_output (msgType=<optimized out>, buf=0x2d31da8 "ASSERT: \"interface->valueInterface()\" in file accessible.cpp, line 280") at global/qglobal.cpp:2315
#9  0x00007f292bc147ef in qt_message(QtMsgType, const char *, typedef __va_list_tag __va_list_tag *) (msgType=QtFatalMsg, msg=0x7f292bd63a58 "ASSERT: \"%s\" in file %s, line %d", ap=0x7fffc561b188) at global/qglobal.cpp:2361
#10 0x00007f292bc14994 in qFatal (msg=<optimized out>) at global/qglobal.cpp:2544
#11 0x00007f29018cc76c in QSpiAccessible::accessibleEvent(QAccessible::Event) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#12 0x00007f29018b10d8 in QSpiAccessibleBridge::notifyAccessibilityUpdate(int, QAccessibleInterface*, int) () from /usr/lib/qt4/plugins/accessiblebridge/libqspiaccessiblebridge.so
#13 0x00007f292cc0b299 in QAccessible::updateAccessibility (o=<optimized out>, who=0, reason=QAccessible::ValueChanged) at accessible/qaccessible_unix.cpp:107
#14 0x00007f292cabf4ad in QAbstractSlider::setValue (this=0x7f290c118500, value=<optimized out>) at widgets/qabstractslider.cpp:540
#15 0x00007f292cd76d27 in QAbstractSlider::qt_metacall (this=0x7f290c118500, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0x7fffc561b860) at .moc/release-shared/moc_qabstractslider.cpp:122
#16 0x00007f292cd78b35 in QDial::qt_metacall (this=0x7f290c118500, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffc561b860) at .moc/release-shared/moc_qdial.cpp:84
#17 0x00007f292dba1340 in VolumeDial::qt_metacall (this=0x7f290c118500, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffc561b860) at ./VolumeDial.moc:76
#18 0x00007f292bd17eba in QMetaObject::activate (sender=0x182ec60, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffc561b860) at kernel/qobject.cpp:3278
#19 0x00007f292da658b1 in EngineController::volumeChanged (this=<optimized out>, _t1=64) at ./EngineController.moc:289
#20 0x00007f292da65aca in EngineController::setVolume (this=0x182ec60, percent=64) at ../../src/EngineController.cpp:718
#21 0x00007f292da71bfa in EngineController::qt_metacall (this=0x182ec60, _c=QMetaObject::InvokeMetaMethod, _id=33, _a=0x7fffc561baa0) at ./EngineController.moc:197
#22 0x00007f292bd17eba in QMetaObject::activate (sender=0x7f290c122f90, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffc561baa0) at kernel/qobject.cpp:3278
#23 0x00007f292cd76ab1 in QAbstractSlider::sliderMoved (this=<optimized out>, _t1=64) at .moc/release-shared/moc_qabstractslider.cpp:195
#24 0x00007f292db98a0e in mouseMoveEvent (e=0x7fffc561c1e0, this=0x7f290c122f90) at ../../src/widgets/SliderWidget.cpp:134
#25 Amarok::Slider::mouseMoveEvent (this=0x7f290c122f90, e=0x7fffc561c1e0) at ../../src/widgets/SliderWidget.cpp:113
#26 0x00007f292db99135 in Amarok::Slider::mousePressEvent (this=0x7f290c122f90, e=0x7fffc561c1e0) at ../../src/widgets/SliderWidget.cpp:179
#27 0x00007f292db9924f in mousePressEvent (e=0x7fffc561c1e0, this=0x7f290c122f90) at ../../src/widgets/SliderWidget.cpp:236
#28 Amarok::VolumeSlider::mousePressEvent (this=0x7f290c122f90, e=0x7fffc561c1e0) at ../../src/widgets/SliderWidget.cpp:232
#29 0x00007f292c755f79 in QWidget::event (this=0x7f290c122f90, event=0x7fffc561c1e0) at kernel/qwidget.cpp:8291
#30 0x00007f292c705424 in notify_helper (e=0x7fffc561c1e0, receiver=0x7f290c122f90, this=0x1582510) at kernel/qapplication.cpp:4486
#31 QApplicationPrivate::notify_helper (this=0x1582510, receiver=0x7f290c122f90, e=0x7fffc561c1e0) at kernel/qapplication.cpp:4458
#32 0x00007f292c70ac6b in QApplication::notify (this=<optimized out>, receiver=0x7f290c122f90, e=0x7fffc561c1e0) at kernel/qapplication.cpp:4047
#33 0x00007f292e466126 in KApplication::notify (this=0x7fffc561e140, receiver=0x7f290c122f90, event=0x7fffc561c1e0) at ../../kdeui/kernel/kapplication.cpp:311
#34 0x00007f292bd04afc in QCoreApplication::notifyInternal (this=0x7fffc561e140, receiver=0x7f290c122f90, event=0x7fffc561c1e0) at kernel/qcoreapplication.cpp:787
#35 0x00007f292c7063f2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#36 QApplicationPrivate::sendMouseEvent (receiver=0x7f290c122f90, event=0x7fffc561c1e0, alienWidget=0x7f290c122f90, nativeWidget=0x7f290c121a80, buttonDown=0x7f290c122f90, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#37 0x00007f292c786001 in QETWidget::translateMouseEvent (this=0x7f290c121a80, event=<optimized out>) at kernel/qapplication_x11.cpp:4502
#38 0x00007f292c7848be in QApplication::x11ProcessEvent (this=0x7fffc561e140, event=0x7fffc561ca00) at kernel/qapplication_x11.cpp:3690
#39 0x00007f292c7ad412 in x11EventSourceDispatch (s=0x158fc70, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#40 0x00007f292611ca5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007f292611d258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007f292611d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007f292bd2fed6 in QEventDispatcherGlib::processEvents (this=0x13c9f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#44 0x00007f292c7ad07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#45 0x00007f292bd03cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#46 0x00007f292bd03ef7 in QEventLoop::exec (this=0x7fffc561cdd0, flags=...) at kernel/qeventloop.cpp:201
#47 0x00007f292cb3c711 in QMenu::exec (this=<optimized out>, p=..., action=0x0) at widgets/qmenu.cpp:2049
#48 0x00007f292db79568 in VolumePopupButton::mouseReleaseEvent (this=0x7f290c121660, event=0x7fffc561d4e0) at ../../src/toolbar/VolumePopupButton.cpp:138
#49 0x00007f292c755c9a in QWidget::event (this=0x7f290c121660, event=0x7fffc561d4e0) at kernel/qwidget.cpp:8295
#50 0x00007f292c705424 in notify_helper (e=0x7fffc561d4e0, receiver=0x7f290c121660, this=0x1582510) at kernel/qapplication.cpp:4486
#51 QApplicationPrivate::notify_helper (this=0x1582510, receiver=0x7f290c121660, e=0x7fffc561d4e0) at kernel/qapplication.cpp:4458
#52 0x00007f292c70ac6b in QApplication::notify (this=<optimized out>, receiver=0x7f290c121660, e=0x7fffc561d4e0) at kernel/qapplication.cpp:4047
#53 0x00007f292e466126 in KApplication::notify (this=0x7fffc561e140, receiver=0x7f290c121660, event=0x7fffc561d4e0) at ../../kdeui/kernel/kapplication.cpp:311
#54 0x00007f292bd04afc in QCoreApplication::notifyInternal (this=0x7fffc561e140, receiver=0x7f290c121660, event=0x7fffc561d4e0) at kernel/qcoreapplication.cpp:787
#55 0x00007f292c7063f2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#56 QApplicationPrivate::sendMouseEvent (receiver=0x7f290c121660, event=0x7fffc561d4e0, alienWidget=0x7f290c121660, nativeWidget=0x7f290c086900, buttonDown=0x7f290c121660, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3146
#57 0x00007f292c785945 in QETWidget::translateMouseEvent (this=0x7f290c086900, event=<optimized out>) at kernel/qapplication_x11.cpp:4568
#58 0x00007f292c7848be in QApplication::x11ProcessEvent (this=0x7fffc561e140, event=0x7fffc561dd00) at kernel/qapplication_x11.cpp:3690
#59 0x00007f292c7ad412 in x11EventSourceDispatch (s=0x158fc70, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#60 0x00007f292611ca5d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#61 0x00007f292611d258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#62 0x00007f292611d429 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#63 0x00007f292bd2fed6 in QEventDispatcherGlib::processEvents (this=0x13c9f40, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#64 0x00007f292c7ad07e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#65 0x00007f292bd03cf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#66 0x00007f292bd03ef7 in QEventLoop::exec (this=0x7fffc561e0d0, flags=...) at kernel/qeventloop.cpp:201
#67 0x00007f292bd08789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#68 0x000000000040916e in main (argc=1, argv=0x7fffc5620748) at ../../src/main.cpp:289

Reported using DrKonqi