Bug 282629

Application: amarok (2.4.0)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
Just surfing the web. When amarok is running form around 10 minutes , more or less, the system start to go slowly and after some seconds it completely freezes. 
After a lot of time (2/4 minutes) a windows appear show me some script on the web have stopped. Amarok window became light grey.
As soon as I'm able to force quit amarok the system run without any problem.

The crash can be reproduced every time.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
[Current thread is 1 (Thread 0xb6541770 (LWP 2928))]

Thread 13 (Thread 0xb62adb70 (LWP 2929)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x07cbff76 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x0545084b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x054401af in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x0544092b in g_main_loop_run () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x026aa304 in ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
#6  0x054692df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#7  0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#8  0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 12 (Thread 0xa6dc0b70 (LWP 3414)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x0708148c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x07cdc3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x02a9a817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x2bae1c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x02a9a851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x2bae1c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 11 (Thread 0xa473fb70 (LWP 3416)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x0708148c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x07cdc3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x00909467 in wait (this=0xaac2708, mutex=0x121c8b78, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0xaac2708, mutex=0x121c8b78, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00b417e0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xaac26f0, th=0x121eba60) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00b4447c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x10181ac0, th=0x121eba60) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x00b4142b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xaac26f0, th=0x121eba60) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00b4456a in ThreadWeaver::WorkingHardState::applyForWork (this=0x10181ac0, th=0x121eba60) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00b41373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xaac26f0, th=0x121eba60, previous=0x1046e9b8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00b42f9e in ThreadWeaver::ThreadRunHelper::run (this=0xa473f294, parent=0xaac26f0, th=0x121eba60) at ../../../threadweaver/Weaver/Thread.cpp:87
#11 0x00b4305b in ThreadWeaver::Thread::run (this=0x121eba60) at ../../../threadweaver/Weaver/Thread.cpp:142
#12 0x00908da2 in QThreadPrivate::start (arg=0x121eba60) at thread/qthread_unix.cpp:320
#13 0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#14 0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 10 (Thread 0xa363db70 (LWP 3436)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x0708148c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x07cdc3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x00909467 in wait (this=0xaac2708, mutex=0x121c8b78, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0xaac2708, mutex=0x121c8b78, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00b417e0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xaac26f0, th=0x128f98a8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00b4447c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x10181ac0, th=0x128f98a8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x00b4142b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xaac26f0, th=0x128f98a8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00b4456a in ThreadWeaver::WorkingHardState::applyForWork (this=0x10181ac0, th=0x128f98a8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00b41373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xaac26f0, th=0x128f98a8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00b44589 in ThreadWeaver::WorkingHardState::applyForWork (this=0x10181ac0, th=0x128f98a8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0x00b41373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xaac26f0, th=0x128f98a8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0x00b44589 in ThreadWeaver::WorkingHardState::applyForWork (this=0x10181ac0, th=0x128f98a8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#13 0x00b41373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xaac26f0, th=0x128f98a8, previous=0xf490c40) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#14 0x00b42f9e in ThreadWeaver::ThreadRunHelper::run (this=0xa363d294, parent=0xaac26f0, th=0x128f98a8) at ../../../threadweaver/Weaver/Thread.cpp:87
#15 0x00b4305b in ThreadWeaver::Thread::run (this=0x128f98a8) at ../../../threadweaver/Weaver/Thread.cpp:142
#16 0x00908da2 in QThreadPrivate::start (arg=0x128f98a8) at thread/qthread_unix.cpp:320
#17 0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#18 0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 9 (Thread 0xa3e3eb70 (LWP 3455)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x0708148c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x07cdc3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x00909467 in wait (this=0xaac2708, mutex=0x121c8b78, time=4294967295) at thread/qwaitcondition_unix.cpp:88
#4  QWaitCondition::wait (this=0xaac2708, mutex=0x121c8b78, time=4294967295) at thread/qwaitcondition_unix.cpp:160
#5  0x00b417e0 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0xaac26f0, th=0xebfa1d8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#6  0x00b4447c in ThreadWeaver::WorkingHardState::waitForAvailableJob (this=0x10181ac0, th=0xebfa1d8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:80
#7  0x00b4142b in ThreadWeaver::WeaverImpl::waitForAvailableJob (this=0xaac26f0, th=0xebfa1d8) at ../../../threadweaver/Weaver/WeaverImpl.cpp:356
#8  0x00b4456a in ThreadWeaver::WorkingHardState::applyForWork (this=0x10181ac0, th=0xebfa1d8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#9  0x00b41373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xaac26f0, th=0xebfa1d8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#10 0x00b44589 in ThreadWeaver::WorkingHardState::applyForWork (this=0x10181ac0, th=0xebfa1d8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#11 0x00b41373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xaac26f0, th=0xebfa1d8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#12 0x00b44589 in ThreadWeaver::WorkingHardState::applyForWork (this=0x10181ac0, th=0xebfa1d8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#13 0x00b41373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xaac26f0, th=0xebfa1d8, previous=0x0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#14 0x00b44589 in ThreadWeaver::WorkingHardState::applyForWork (this=0x10181ac0, th=0xebfa1d8) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#15 0x00b41373 in ThreadWeaver::WeaverImpl::applyForWork (this=0xaac26f0, th=0xebfa1d8, previous=0x10234398) at ../../../threadweaver/Weaver/WeaverImpl.cpp:351
#16 0x00b42f9e in ThreadWeaver::ThreadRunHelper::run (this=0xa3e3e294, parent=0xaac26f0, th=0xebfa1d8) at ../../../threadweaver/Weaver/Thread.cpp:87
#17 0x00b4305b in ThreadWeaver::Thread::run (this=0xebfa1d8) at ../../../threadweaver/Weaver/Thread.cpp:142
#18 0x00908da2 in QThreadPrivate::start (arg=0xebfa1d8) at thread/qthread_unix.cpp:320
#19 0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#20 0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 8 (Thread 0xa9bd5b70 (LWP 3462)):
[KCrash Handler]
#7  0x010360e3 in ConstraintTypes::TagMatch::matches (this=0x9fc1860, track=...) at ../../src/playlistgenerator/constraints/TagMatch.cpp:523
#8  0x01036b31 in ConstraintTypes::TagMatch::vote (this=0x9fc1860, playlist=..., domain=...) at ../../src/playlistgenerator/constraints/TagMatch.cpp:403
#9  0x00fe9751 in ConstraintGroup::vote (this=0xa5b6cc0, playlist=..., domain=...) at ../../src/playlistgenerator/ConstraintGroup.cpp:465
#10 0x00fe9751 in ConstraintGroup::vote (this=0xa5b5578, playlist=..., domain=...) at ../../src/playlistgenerator/ConstraintGroup.cpp:465
#11 0x00ffdbec in APG::ConstraintSolver::mutateByVote (this=0x103a65f8, temperature=4.5) at ../../src/playlistgenerator/ConstraintSolver.cpp:332
#12 0x00fff69a in APG::ConstraintSolver::run (this=0x103a65f8) at ../../src/playlistgenerator/ConstraintSolver.cpp:182
#13 0x00b437f4 in ThreadWeaver::JobRunHelper::runTheJob (this=0xa9bd520c, th=0x10988810, job=0x103a65f8) at ../../../threadweaver/Weaver/Job.cpp:106
#14 0x00b43941 in ThreadWeaver::Job::execute (this=0x103a65f8, th=0x10988810) at ../../../threadweaver/Weaver/Job.cpp:135
#15 0x00b42f6a in ThreadWeaver::ThreadRunHelper::run (this=0xa9bd5294, parent=0xaac26f0, th=0x10988810) at ../../../threadweaver/Weaver/Thread.cpp:95
#16 0x00b4305b in ThreadWeaver::Thread::run (this=0x10988810) at ../../../threadweaver/Weaver/Thread.cpp:142
#17 0x00908da2 in QThreadPrivate::start (arg=0x10988810) at thread/qthread_unix.cpp:320
#18 0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#19 0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 7 (Thread 0xa07ffb70 (LWP 3463)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x0708148c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x07cdc3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb72f4b57 in ?? () from /usr/lib/libQtWebKit.so.4
#4  0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#5  0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 6 (Thread 0x97afcb70 (LWP 4702)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x0708148c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x07cdc3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x039e893e in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#4  0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#5  0x037e8b5d in ?? () from /usr/lib/libgstreamer-0.10.so.0
#6  0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#7  0x037e8b5d in ?? () from /usr/lib/libgstreamer-0.10.so.0
#8  0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#9  0x044366b5 in ?? () from /usr/lib/gstreamer-0.10/libgstflump3dec.so
#10 0x044377d7 in ?? () from /usr/lib/gstreamer-0.10/libgstflump3dec.so
#11 0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#12 0x0842b1c2 in ?? () from /usr/lib/gstreamer-0.10/libgstaudioparsersbad.so
#13 0x0842bee3 in ?? () from /usr/lib/gstreamer-0.10/libgstaudioparsersbad.so
#14 0x0842f0f3 in ?? () from /usr/lib/gstreamer-0.10/libgstaudioparsersbad.so
#15 0x03828bba in ?? () from /usr/lib/libgstreamer-0.10.so.0
#16 0x03829ef7 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#17 0x0546ba39 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#18 0x054692df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#19 0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#20 0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 5 (Thread 0x98afeb70 (LWP 5057)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x07cbff76 in poll () from /lib/i386-linux-gnu/libc.so.6
#2  0x07ed64a2 in ?? () from /usr/lib/libpulse.so.0
#3  0x07ec53a9 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#4  0x07ec5b84 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#5  0x07ec5c64 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#6  0x07ed6443 in ?? () from /usr/lib/libpulse.so.0
#7  0x0554fa75 in ?? () from /usr/lib/libpulsecommon-0.9.22.so
#8  0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#9  0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 4 (Thread 0xaea29b70 (LWP 5058)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x0708148c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x07cdc3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x03560f5e in gst_base_sink_wait_preroll () from /usr/lib/libgstbase-0.10.so.0
#4  0x035610d7 in gst_base_sink_do_preroll () from /usr/lib/libgstbase-0.10.so.0
#5  0x03563a9c in ?? () from /usr/lib/libgstbase-0.10.so.0
#6  0x03566ef9 in ?? () from /usr/lib/libgstbase-0.10.so.0
#7  0x03567382 in ?? () from /usr/lib/libgstbase-0.10.so.0
#8  0x0356785a in ?? () from /usr/lib/libgstbase-0.10.so.0
#9  0x037fb77e in ?? () from /usr/lib/libgstreamer-0.10.so.0
#10 0x037fc10e in ?? () from /usr/lib/libgstreamer-0.10.so.0
#11 0x037ff2e8 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#12 0x0357778d in ?? () from /usr/lib/libgstbase-0.10.so.0
#13 0x037fb77e in ?? () from /usr/lib/libgstreamer-0.10.so.0
#14 0x037fc10e in ?? () from /usr/lib/libgstreamer-0.10.so.0
#15 0x037ff2e8 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#16 0x0357778d in ?? () from /usr/lib/libgstbase-0.10.so.0
#17 0x037fb77e in ?? () from /usr/lib/libgstreamer-0.10.so.0
#18 0x037fc10e in ?? () from /usr/lib/libgstreamer-0.10.so.0
#19 0x037ff2e8 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#20 0x0357778d in ?? () from /usr/lib/libgstbase-0.10.so.0
#21 0x037fb77e in ?? () from /usr/lib/libgstreamer-0.10.so.0
#22 0x037fc10e in ?? () from /usr/lib/libgstreamer-0.10.so.0
#23 0x037ff2e8 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#24 0x039e9bb9 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#25 0x03828bba in ?? () from /usr/lib/libgstreamer-0.10.so.0
#26 0x03829ef7 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#27 0x0546ba39 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#28 0x054692df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#29 0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#30 0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 3 (Thread 0x982fdb70 (LWP 5059)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x0708148c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x07cdc3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x039e893e in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#4  0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#5  0x037e8b5d in ?? () from /usr/lib/libgstreamer-0.10.so.0
#6  0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#7  0x039f6b46 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#8  0x039f6dc6 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#9  0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#10 0x037e8b5d in ?? () from /usr/lib/libgstreamer-0.10.so.0
#11 0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#12 0x0357778d in ?? () from /usr/lib/libgstbase-0.10.so.0
#13 0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#14 0x0357778d in ?? () from /usr/lib/libgstbase-0.10.so.0
#15 0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#16 0x039e9bb9 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#17 0x03828bba in ?? () from /usr/lib/libgstreamer-0.10.so.0
#18 0x03829ef7 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#19 0x0546ba39 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#20 0x054692df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#21 0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#22 0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0x992ffb70 (LWP 5060)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x0708148c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x07cdc3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x039e893e in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#4  0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#5  0x037e8b5d in ?? () from /usr/lib/libgstreamer-0.10.so.0
#6  0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#7  0x039f68d7 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#8  0x039f6dc6 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#9  0x037ff3a0 in gst_pad_push () from /usr/lib/libgstreamer-0.10.so.0
#10 0x039e9bb9 in ?? () from /usr/lib/gstreamer-0.10/libgstcoreelements.so
#11 0x03828bba in ?? () from /usr/lib/libgstreamer-0.10.so.0
#12 0x03829ef7 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#13 0x0546ba39 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#14 0x054692df in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#15 0x0707ce99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#16 0x07cce73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb6541770 (LWP 2928)):
#0  0x00b54416 in __kernel_vsyscall ()
#1  0x070840b9 in __lll_lock_wait () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x0707f54b in _L_lock_791 () from /lib/i386-linux-gnu/libpthread.so.0
#3  0x0707f371 in pthread_mutex_lock () from /lib/i386-linux-gnu/libpthread.so.0
#4  0x07cdc616 in pthread_mutex_lock () from /lib/i386-linux-gnu/libc.so.6
#5  0x0546975e in g_static_rec_mutex_lock () from /lib/i386-linux-gnu/libglib-2.0.so.0
#6  0x037f51b8 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#7  0x037fe412 in gst_pad_activate_push () from /usr/lib/libgstreamer-0.10.so.0
#8  0x037e8615 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#9  0x037fe2ff in gst_pad_activate_push () from /usr/lib/libgstreamer-0.10.so.0
#10 0x037ff0f0 in gst_pad_set_active () from /usr/lib/libgstreamer-0.10.so.0
#11 0x037caaee in ?? () from /usr/lib/libgstreamer-0.10.so.0
#12 0x037f0ba7 in gst_iterator_fold () from /usr/lib/libgstreamer-0.10.so.0
#13 0x037ca99f in ?? () from /usr/lib/libgstreamer-0.10.so.0
#14 0x037cdd54 in ?? () from /usr/lib/libgstreamer-0.10.so.0
#15 0x037e1d05 in gst_element_change_state () from /usr/lib/libgstreamer-0.10.so.0
#16 0x037e27bb in ?? () from /usr/lib/libgstreamer-0.10.so.0
#17 0x037e1a50 in gst_element_set_state () from /usr/lib/libgstreamer-0.10.so.0
#18 0x032c76a1 in ?? () from /usr/lib/qt4/plugins/phonon_backend/phonon_gstreamer.so
#19 0x032de811 in ?? () from /usr/lib/qt4/plugins/phonon_backend/phonon_gstreamer.so
#20 0x032de882 in ?? () from /usr/lib/qt4/plugins/phonon_backend/phonon_gstreamer.so
#21 0x052f749c in Phonon::MediaNodePrivate::deleteBackendObject() () from /usr/lib/libphonon.so.4
#22 0x052e4ab3 in ?? () from /usr/lib/libphonon.so.4
#23 0x052e4da2 in ?? () from /usr/lib/libphonon.so.4
#24 0x052e30f5 in ?? () from /usr/lib/libphonon.so.4
#25 0x052df63b in ?? () from /usr/lib/libphonon.so.4
#26 0x07c2da6f in ?? () from /lib/i386-linux-gnu/libc.so.6
#27 0x07c2dacf in exit () from /lib/i386-linux-gnu/libc.so.6
#28 0x02f6ea90 in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#29 0x0046c11a in KApplication::xioErrhandler (this=0xbf9ee008, dpy=0x9255688) at ../../kdeui/kernel/kapplication.cpp:419
#30 0x0046c156 in kde_xio_errhandler (dpy=0x9255688) at ../../kdeui/kernel/kapplication.cpp:126
#31 0x0432d166 in _XIOError () from /usr/lib/i386-linux-gnu/libX11.so.6
#32 0x0432a81f in _XEventsQueued () from /usr/lib/i386-linux-gnu/libX11.so.6
#33 0x0431b4eb in XEventsQueued () from /usr/lib/i386-linux-gnu/libX11.so.6
#34 0x05d45fc5 in x11EventSourceCheck (s=0x9245df8) at kernel/qguieventdispatcher_glib.cpp:85
#35 0x0543f71d in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#36 0x0544003a in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#37 0x05440524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#38 0x00a2a53c in QEventDispatcherGlib::processEvents (this=0x911f440, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#39 0x05d461e5 in QGuiEventDispatcherGlib::processEvents (this=0x911f440, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x009fc289 in QEventLoop::processEvents (this=0xbf9ecc80, flags=...) at kernel/qeventloop.cpp:149
#41 0x009fc522 in QEventLoop::exec (this=0xbf9ecc80, flags=...) at kernel/qeventloop.cpp:201
#42 0x061afa93 in QDialog::exec (this=0xa044878) at dialogs/qdialog.cpp:552
#43 0x010147d2 in APG::PresetModel::editPreset (this=0xf19c9e8, index=...) at ../../src/playlistgenerator/PresetModel.cpp:141
#44 0x00c216dd in APG::PresetModel::qt_metacall (this=0xf19c9e8, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0xbf9ece08) at moc_PresetModel.cpp:92
#45 0x00a036ba in QMetaObject::metacall (object=0xf19c9e8, cl=QMetaObject::InvokeMetaMethod, idx=27, argv=0xbf9ece08) at kernel/qmetaobject.cpp:237
#46 0x00a134ff in QMetaObject::activate (sender=0xed79d08, m=0x65cf164, local_signal_index=2, argv=0xbf9ece08) at kernel/qobject.cpp:3287
#47 0x0620cde3 in QAbstractItemView::doubleClicked (this=0xed79d08, _t1=...) at .moc/release-shared/moc_qabstractitemview.cpp:338
#48 0x06255c67 in QTreeView::mouseDoubleClickEvent (this=0xed79d08, event=0xbf9ed794) at itemviews/qtreeview.cpp:1861
#49 0x05ce8156 in QWidget::event (this=0xed79d08, event=0xbf9ed794) at kernel/qwidget.cpp:8263
#50 0x060dc9f3 in QFrame::event (this=0xed79d08, e=0xbf9ed794) at widgets/qframe.cpp:557
#51 0x0616b062 in QAbstractScrollArea::viewportEvent (this=0xed79d08, e=0xbf9ed794) at widgets/qabstractscrollarea.cpp:1043
#52 0x0620a227 in QAbstractItemView::viewportEvent (this=0xed79d08, event=0xbf9ed794) at itemviews/qabstractitemview.cpp:1628
#53 0x06251e83 in QTreeView::viewportEvent (this=0xed79d08, event=0xbf9ed794) at itemviews/qtreeview.cpp:1256
#54 0x0616d965 in viewportEvent (this=0x12840d78, o=0xef64078, e=0xbf9ed794) at widgets/qabstractscrollarea_p.h:100
#55 QAbstractScrollAreaFilter::eventFilter (this=0x12840d78, o=0xef64078, e=0xbf9ed794) at widgets/qabstractscrollarea_p.h:116
#56 0x009fd25a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x9240348, receiver=0xef64078, event=0xbf9ed794) at kernel/qcoreapplication.cpp:846
#57 0x05c8fd00 in QApplicationPrivate::notify_helper (this=0x9240348, receiver=0xef64078, e=0xbf9ed794) at kernel/qapplication.cpp:4458
#58 0x05c95201 in QApplication::notify (this=0xbf9ee008, receiver=0xef64078, e=0xbf9ed794) at kernel/qapplication.cpp:4023
#59 0x0046d3ca in KApplication::notify (this=0xbf9ee008, receiver=0xef64078, event=0xbf9ed794) at ../../kdeui/kernel/kapplication.cpp:311
#60 0x009fd0bb in QCoreApplication::notifyInternal (this=0xbf9ee008, receiver=0xef64078, event=0xbf9ed794) at kernel/qcoreapplication.cpp:731
#61 0x05c90c3b in sendSpontaneousEvent (receiver=0xef64078, event=0xbf9ed794, alienWidget=0xef64078, nativeWidget=0xf2b5030, buttonDown=0x65dec60, lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#62 QApplicationPrivate::sendMouseEvent (receiver=0xef64078, event=0xbf9ed794, alienWidget=0xef64078, nativeWidget=0xf2b5030, buttonDown=0x65dec60, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3120
#63 0x05d1c04c in QETWidget::translateMouseEvent (this=0xf2b5030, event=0xbf9edcbc) at kernel/qapplication_x11.cpp:4558
#64 0x05d1a9b5 in QApplication::x11ProcessEvent (this=0xbf9ee008, event=0xbf9edcbc) at kernel/qapplication_x11.cpp:3680
#65 0x05d465f4 in x11EventSourceDispatch (s=0x9245df8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#66 0x0543faa8 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#67 0x05440270 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#68 0x05440524 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#69 0x00a2a53c in QEventDispatcherGlib::processEvents (this=0x911f440, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#70 0x05d461e5 in QGuiEventDispatcherGlib::processEvents (this=0x911f440, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#71 0x009fc289 in QEventLoop::processEvents (this=0xbf9edf84, flags=...) at kernel/qeventloop.cpp:149
#72 0x009fc522 in QEventLoop::exec (this=0xbf9edf84, flags=...) at kernel/qeventloop.cpp:201
#73 0x00a00ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#74 0x05c8d8e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#75 0x08050cf0 in main (argc=) at ../../src/main.cpp:268

Reported using DrKonqi