Bug 360406

Summary: Amarok crashed after I tried to play mp3 file
Product: [Applications] amarok Reporter: Tom Kijas <t.kijas>
Component: generalAssignee: Amarok Bugs <amarok-bugs-null>
Status: RESOLVED NOT A BUG    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 2.8.90 (2.9 beta)   
Target Milestone: 2.9   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Tom Kijas 2016-03-11 11:36:35 UTC 
Application: amarok (2.8.90)
KDE Platform Version: 4.14.15
Qt Version: 4.8.6
Operating System: Linux 4.2.0-30-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
Amarok crashed after I tried to play mp3 file
- Unusual behavior I noticed:
All work with files (to play, to open, to save) is terribly slow and so was playing the mp3 file... few minutes after I clicked "Play with amarok" it opened and played a bit but the window of Amarok was messy - without content, so I had to kill it.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f24451c2840 (LWP 3843))]

Thread 20 (Thread 0x7f242335b700 (LWP 4017)):
#0  0x00007f2441e0d88d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f243aae24e1 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007f243aad3be1 in pa_mainloop_poll () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007f243aad427e in pa_mainloop_iterate () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007f243aad4330 in pa_mainloop_run () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007f243aae2476 in  () at /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007f24350434d8 in  () at /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-6.0.so
#7  0x00007f24404a86aa in start_thread (arg=0x7f242335b700) at pthread_create.c:333
#8  0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f24112a6700 (LWP 4018)):
#0  0x00007f24404ae149 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f24424d9264 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007f2444b2bb0f in AbstractDirectoryWatcher::run() () at /usr/lib/libamaroklib.so.1
#3  0x00007f243f4f0d22 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007f243f4f0f2e in ThreadWeaver::Job::execute(ThreadWeaver::Thread*) () at /usr/lib/libthreadweaver.so.4
#5  0x00007f243f4f05fb in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#6  0x00007f24424d8d1c in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f24404a86aa in start_thread (arg=0x7f24112a6700) at pthread_create.c:333
#8  0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f2410aa5700 (LWP 4019)):
#0  0x00007f243bad6869 in g_mutex_lock (mutex=mutex@entry=0x7f24040009a0) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1338
#1  0x00007f243ba91789 in g_main_context_prepare (context=context@entry=0x7f24040009a0, priority=priority@entry=0x7f2410aa4c00) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3444
#2  0x00007f243ba9211b in g_main_context_iterate (context=context@entry=0x7f24040009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3820
#3  0x00007f243ba922fc in g_main_context_iteration (context=0x7f24040009a0, may_block=1) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3901
#4  0x00007f244261920e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007f24425e70d1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f24425e7445 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f24424d64f9 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f24425c7133 in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f24424d8d1c in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f24404a86aa in start_thread (arg=0x7f2410aa5700) at pthread_create.c:333
#11 0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f240bfff700 (LWP 4020)):
#0  0x00007f24404adda0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f24424d9286 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007f243f4eecfc in  () at /usr/lib/libthreadweaver.so.4
#3  0x00007f243f4f1a03 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007f243f4f1a1c in  () at /usr/lib/libthreadweaver.so.4
#5  0x00007f243f4f1a1c in  () at /usr/lib/libthreadweaver.so.4
#6  0x00007f243f4f1a1c in  () at /usr/lib/libthreadweaver.so.4
#7  0x00007f243f4f055f in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#8  0x00007f24424d8d1c in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f24404a86aa in start_thread (arg=0x7f240bfff700) at pthread_create.c:333
#10 0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f240b7fe700 (LWP 4021)):
#0  0x00007f24404adda0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f24424d9286 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007f243f4eecfc in  () at /usr/lib/libthreadweaver.so.4
#3  0x00007f243f4f1a03 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007f243f4f1a1c in  () at /usr/lib/libthreadweaver.so.4
#5  0x00007f243f4f1a1c in  () at /usr/lib/libthreadweaver.so.4
#6  0x00007f243f4f1a1c in  () at /usr/lib/libthreadweaver.so.4
#7  0x00007f243f4f055f in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#8  0x00007f24424d8d1c in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f24404a86aa in start_thread (arg=0x7f240b7fe700) at pthread_create.c:333
#10 0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f240affd700 (LWP 4022)):
#0  0x00007f24404adda0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f24424d9286 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007f243f4eecfc in  () at /usr/lib/libthreadweaver.so.4
#3  0x00007f243f4f1a03 in  () at /usr/lib/libthreadweaver.so.4
#4  0x00007f243f4f055f in ThreadWeaver::Thread::run() () at /usr/lib/libthreadweaver.so.4
#5  0x00007f24424d8d1c in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f24404a86aa in start_thread (arg=0x7f240affd700) at pthread_create.c:333
#7  0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f2409f74700 (LWP 4023)):
#0  0x00007f2441e0944d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f243bad54e0 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f2409f73b30, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  0x00007f243bad54e0 in g_wakeup_acknowledge (wakeup=0x7f23fc001b40) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gwakeup.c:210
#3  0x00007f243ba91cd4 in g_main_context_check (context=context@entry=0x7f23e80009a0, max_priority=2147483647, fds=fds@entry=0x7f23e8002c10, n_fds=n_fds@entry=1) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3632
#4  0x00007f243ba92190 in g_main_context_iterate (context=context@entry=0x7f23e80009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3837
#5  0x00007f243ba922fc in g_main_context_iteration (context=0x7f23e80009a0, may_block=1) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3901
#6  0x00007f244261920e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f24425e70d1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f24425e7445 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f24424d64f9 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f24425c7133 in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007f24424d8d1c in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#12 0x00007f24404a86aa in start_thread (arg=0x7f2409f74700) at pthread_create.c:333
#13 0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f23ec882700 (LWP 4024)):
#0  0x00007f24404adda0 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2439e028cd in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f2439e02929 in  () at /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f24404a86aa in start_thread (arg=0x7f23ec882700) at pthread_create.c:333
#4  0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f23a675d700 (LWP 4061)):
#0  0x00007f2441e0d88d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f243ba921ec in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f23980013e0, timeout=<optimized out>, context=0x7f23980009a0) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:4135
#2  0x00007f243ba921ec in g_main_context_iterate (context=context@entry=0x7f23980009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3835
#3  0x00007f243ba922fc in g_main_context_iteration (context=0x7f23980009a0, may_block=1) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3901
#4  0x00007f244261920e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007f24425e70d1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f24425e7445 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f24424d64f9 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f24424d8d1c in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f24404a86aa in start_thread (arg=0x7f23a675d700) at pthread_create.c:333
#10 0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f23f2773700 (LWP 4080)):
#0  0x00007f2441e13559 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f243bad69cf in g_cond_wait (cond=0x25cb0b0, mutex=0x25cb068) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1397
#2  0x00007f24339b7fed in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#3  0x00007f243bab92fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthreadpool.c:307
#4  0x00007f243bab8965 in g_thread_proxy (data=0x259a400) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread.c:778
#5  0x00007f24404a86aa in start_thread (arg=0x7f23f2773700) at pthread_create.c:333
#6  0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f23f1b56700 (LWP 4081)):
#0  0x00007f2441e13559 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f243bad69cf in g_cond_wait (cond=0x25cb650, mutex=0x25cb608) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1397
#2  0x00007f24339b7fed in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#3  0x00007f243bab92fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthreadpool.c:307
#4  0x00007f243bab8965 in g_thread_proxy (data=0x7f239c0fa320) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread.c:778
#5  0x00007f24404a86aa in start_thread (arg=0x7f23f1b56700) at pthread_create.c:333
#6  0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f23f1150700 (LWP 4082)):
#0  0x00007f2441e13559 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f243bad69cf in g_cond_wait (cond=0x25cbd10, mutex=0x25cbcc8) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1397
#2  0x00007f24339b7fed in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#3  0x00007f243bab92fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthreadpool.c:307
#4  0x00007f243bab8965 in g_thread_proxy (data=0x15862d0) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread.c:778
#5  0x00007f24404a86aa in start_thread (arg=0x7f23f1150700) at pthread_create.c:333
#6  0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f23f072f700 (LWP 4083)):
#0  0x00007f2441e13559 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f243bad69cf in g_cond_wait (cond=0x7f238c008410, mutex=0x7f238c0083c8) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1397
#2  0x00007f24339b7fed in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#3  0x00007f243bab92fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthreadpool.c:307
#4  0x00007f243bab8965 in g_thread_proxy (data=0x1574050) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread.c:778
#5  0x00007f24404a86aa in start_thread (arg=0x7f23f072f700) at pthread_create.c:333
#6  0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f23efae5700 (LWP 4084)):
#0  0x00007f2441e13559 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f243bad69cf in g_cond_wait (cond=0x172a6b0, mutex=0x172a6a0) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1397
#2  0x00007f2421a180ee in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#3  0x00007f24339b7e51 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#4  0x00007f243bab92fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthreadpool.c:307
#5  0x00007f243bab8965 in g_thread_proxy (data=0x12180f0) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread.c:778
#6  0x00007f24404a86aa in start_thread (arg=0x7f23efae5700) at pthread_create.c:333
#7  0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f23ef2e4700 (LWP 4085)):
#0  0x00007f2441e13559 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f243bad69cf in g_cond_wait (cond=0x171f3b0, mutex=0x171f3a8) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1397
#2  0x00007f2433c636bd in gst_base_sink_wait_preroll () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#3  0x00007f2433eca079 in  () at /usr/lib/x86_64-linux-gnu/libgstaudio-1.0.so.0
#4  0x00007f2433c65a42 in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#5  0x00007f2433c66eb0 in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#6  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#7  0x00007f2433c70b5d in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#8  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#9  0x00007f2433c70b5d in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#10 0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#11 0x00007f2433c70b5d in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#12 0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#13 0x00007f2421a189c9 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#14 0x00007f24339b7e51 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#15 0x00007f243bab92fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthreadpool.c:307
#16 0x00007f243bab8965 in g_thread_proxy (data=0x15831e0) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread.c:778
#17 0x00007f24404a86aa in start_thread (arg=0x7f23ef2e4700) at pthread_create.c:333
#18 0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f23eeae3700 (LWP 4086)):
#0  0x00007f2441e13559 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f243bad69cf in g_cond_wait (cond=0x172a3d8, mutex=0x172a3b0) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1397
#2  0x00007f2421a199d6 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#3  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#4  0x00007f2433978e83 in gst_proxy_pad_chain_default () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#5  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#6  0x00007f2421a26ba2 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#7  0x00007f2421a27069 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#8  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#9  0x00007f2433978e83 in gst_proxy_pad_chain_default () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#10 0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#11 0x00007f2433c70b5d in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#12 0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#13 0x00007f2433c70b5d in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#14 0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#15 0x00007f2421a189c9 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#16 0x00007f24339b7e51 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#17 0x00007f243bab92fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthreadpool.c:307
#18 0x00007f243bab8965 in g_thread_proxy (data=0x156b0f0) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread.c:778
#19 0x00007f24404a86aa in start_thread (arg=0x7f23eeae3700) at pthread_create.c:333
#20 0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f23a5834700 (LWP 4087)):
#0  0x00007f2441e13559 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f243bad69cf in g_cond_wait (cond=0x172b578, mutex=0x172b550) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1397
#2  0x00007f2421a199d6 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#3  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#4  0x00007f2433978e83 in gst_proxy_pad_chain_default () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#5  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#6  0x00007f2421a26ba2 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#7  0x00007f2421a27069 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#8  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#9  0x00007f2433978e83 in gst_proxy_pad_chain_default () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#10 0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#11 0x00007f2433c70b5d in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#12 0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#13 0x00007f2433c70b5d in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#14 0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#15 0x00007f2421a189c9 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#16 0x00007f24339b7e51 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#17 0x00007f243bab92fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthreadpool.c:307
#18 0x00007f243bab8965 in g_thread_proxy (data=0x1218680) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread.c:778
#19 0x00007f24404a86aa in start_thread (arg=0x7f23a5834700) at pthread_create.c:333
#20 0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f23a5033700 (LWP 4088)):
#0  0x00007f2441e13559 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f243bad69cf in g_cond_wait (cond=0x172b288, mutex=0x172b260) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1397
#2  0x00007f2421a199d6 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#3  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#4  0x00007f2433978e83 in gst_proxy_pad_chain_default () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#5  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#6  0x00007f2421a26ba2 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#7  0x00007f2421a27069 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#8  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#9  0x00007f2421a189c9 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#10 0x00007f24339b7e51 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#11 0x00007f243bab92fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthreadpool.c:307
#12 0x00007f243bab8965 in g_thread_proxy (data=0x7f238c002a30) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread.c:778
#13 0x00007f24404a86aa in start_thread (arg=0x7f23a5033700) at pthread_create.c:333
#14 0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f23a4832700 (LWP 4089)):
#0  0x00007f2441e13559 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f243bad69cf in g_cond_wait (cond=0x172a9b8, mutex=0x172a990) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread-posix.c:1397
#2  0x00007f2421a199d6 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#3  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#4  0x00007f2433978e83 in gst_proxy_pad_chain_default () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#5  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#6  0x00007f2433978e83 in gst_proxy_pad_chain_default () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#7  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#8  0x00007f2433c70b5d in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#9  0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#10 0x00007f2433c70b5d in  () at /usr/lib/x86_64-linux-gnu/libgstbase-1.0.so.0
#11 0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#12 0x00007f2433978e83 in gst_proxy_pad_chain_default () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#13 0x00007f2433987aa8 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#14 0x00007f2421a189c9 in  () at /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so
#15 0x00007f24339b7e51 in  () at /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
#16 0x00007f243bab92fe in g_thread_pool_thread_proxy (data=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthreadpool.c:307
#17 0x00007f243bab8965 in g_thread_proxy (data=0x7f238c002c50) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gthread.c:778
#18 0x00007f24404a86aa in start_thread (arg=0x7f23a4832700) at pthread_create.c:333
#19 0x00007f2441e18e9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f24451c2840 (LWP 3843)):
[KCrash Handler]
#6  0x00007f24425fb7a0 in QObject::thread() const () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f24437894ee in KDBusConnectionPool::threadConnection() () at /usr/lib/libkdecore.so.5
#8  0x00007f243ef0cdc2 in  () at /usr/lib/libkio.so.5
#9  0x00007f243ef0d755 in OrgKdeKDirNotifyInterface::emitLeftDirectory(QString const&) () at /usr/lib/libkio.so.5
#10 0x00007f243eef3850 in  () at /usr/lib/libkio.so.5
#11 0x00007f243eef39f9 in  () at /usr/lib/libkio.so.5
#12 0x00007f2441d4bd32 in __run_exit_handlers (status=1, listp=0x7f24420d6698 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
#13 0x00007f2441d4bd85 in __GI_exit (status=<optimized out>) at exit.c:104
#14 0x00007f2442b816a8 in  () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#15 0x00007f2443d59370 in KApplication::xioErrhandler(_XDisplay*) () at /usr/lib/libkdeui.so.5
#16 0x00007f2444479cee in _XIOError () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#17 0x00007f2444477d4a in _XReply () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#18 0x00007f244446259f in XInternAtom () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#19 0x00007f244448ddeb in  () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#20 0x00007f244448de6b in _XmbTextListToTextProperty () at /usr/lib/x86_64-linux-gnu/libX11.so.6
#21 0x00007f2442bab9ac in  () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#22 0x00007f2442bac4cf in QWidgetPrivate::setWindowTitle_sys(QString const&) () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#23 0x00007f2442b59639 in QWidgetPrivate::setWindowTitle_helper(QString const&) () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#24 0x00007f2442b5e886 in QWidget::setWindowTitle(QString const&) () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#25 0x00007f2444c2c267 in MainWindow::slotMetadataChanged(KSharedPtr<Meta::Track>) () at /usr/lib/libamaroklib.so.1
#26 0x00007f2444c2c434 in MainWindow::slotNewTrackPlaying() () at /usr/lib/libamaroklib.so.1
#27 0x00007f2444c36d4d in  () at /usr/lib/libamaroklib.so.1
#28 0x00007f24425fcf60 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#29 0x00007f2444c1f305 in EngineController::trackPlaying(KSharedPtr<Meta::Track>) () at /usr/lib/libamaroklib.so.1
#30 0x00007f2444c2751d in EngineController::slotNewTrackPlaying(Phonon::MediaSource const&) () at /usr/lib/libamaroklib.so.1
#31 0x00007f2444c28e19 in  () at /usr/lib/libamaroklib.so.1
#32 0x00007f24425fcf60 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#33 0x00007f2441824de5 in Phonon::MediaObject::currentSourceChanged(Phonon::MediaSource const&) () at /usr/lib/x86_64-linux-gnu/libphonon.so.4
#34 0x00007f24418255ed in  () at /usr/lib/x86_64-linux-gnu/libphonon.so.4
#35 0x00007f2442602d01 in QObject::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#36 0x00007f2442b14cdc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#37 0x00007f2442b1bc16 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#38 0x00007f2443d5aa2a in KApplication::notify(QObject*, QEvent*) () at /usr/lib/libkdeui.so.5
#39 0x00007f24425e885d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#40 0x00007f24425ec316 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#41 0x00007f244261907e in  () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#42 0x00007f243ba91ff7 in g_main_context_dispatch (context=0x12f3600) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3154
#43 0x00007f243ba91ff7 in g_main_context_dispatch (context=context@entry=0x12f3600) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3769
#44 0x00007f243ba92250 in g_main_context_iterate (context=context@entry=0x12f3600, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3840
#45 0x00007f243ba922fc in g_main_context_iteration (context=0x12f3600, may_block=1) at /build/glib2.0-MuyBSS/glib2.0-2.46.2/./glib/gmain.c:3901
#46 0x00007f24426191ee in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#47 0x00007f2442bbfc26 in  () at /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#48 0x00007f24425e70d1 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#49 0x00007f24425e7445 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#50 0x00007f24425ed429 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#51 0x000000000040869d in  ()
#52 0x00007f2441d32a40 in __libc_start_main (main=0x401970, argc=2, argv=0x7ffe4044c5b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe4044c5a8) at libc-start.c:289
#53 0x000000000040a2c9 in _start ()

Reported using DrKonqi
Comment 1 Myriam Schweingruber 2016-03-11 12:49:59 UTC 
Unfortunately your backtrace doesn't have debugging symbols, please install those and provide a better backtrace. See also https://techbase.kde.org/Development/Tutorials/Debugging/How_to_create_useful_crash_reports
Comment 2 Myriam Schweingruber 2016-06-12 12:50:00 UTC 
Closing for lack of feedback. Please feel free to reopen this report if you can provide the requested feedback.