Application: kalarm (2.10.10-ak)
KDE Platform Version: 4.13.3
Qt Version: 4.8.6
Operating System: Linux 3.13.0-52-generic x86_64
Distribution: Ubuntu 14.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed:
 The screen was locked, kalarm was configured to go off with a repeating-sound alarm, and when I unlocked my screen 20 minutes later, I found this crash report waiting. I don't know if the alarm had been going off.

-- Backtrace:
Application: KAlarm (kalarm), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
__lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
[Current thread is 1 (Thread 0x7efcb3aef800 (LWP 2419))]

Thread 9 (Thread 0x7efc7cdec700 (LWP 16935)):
#0  0x00007efcaa4fb7ee in __pthread_mutex_unlock_usercnt (decr=1, mutex=0x7efc64001110) at pthread_mutex_unlock.c:57
#1  __GI___pthread_mutex_unlock (mutex=0x7efc64001110) at pthread_mutex_unlock.c:310
#2  0x00007efca90c69b1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007efca90848f9 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efca9084f52 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007efca90850ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007efcaec067be in QEventDispatcherGlib::processEvents (this=0x7efc6400b820, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#7  0x00007efcaebd80af in QEventLoop::processEvents (this=this@entry=0x7efc7cdebcd0, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007efcaebd83a5 in QEventLoop::exec (this=this@entry=0x7efc7cdebcd0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007efcaead4c5f in QThread::exec (this=this@entry=0x2565cf0) at thread/qthread.cpp:537
#10 0x00000000004b4255 in AudioThread::run (this=0x2565cf0) at ../../kalarm/messagewin.cpp:1730
#11 0x00007efcaead732f in QThreadPrivate::start (arg=0x2565cf0) at thread/qthread_unix.cpp:349
#12 0x00007efcaa4f8182 in start_thread (arg=0x7efc7cdec700) at pthread_create.c:312
#13 0x00007efcae27747d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 8 (Thread 0x7efc7e5ef700 (LWP 16938)):
[KCrash Handler]
#6  0x00007efca90a0297 in g_slice_alloc () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007efc9575b02f in gst_caps_new_empty () at gstcaps.c:236
#8  0x00007efc9575d3f5 in gst_caps_intersect_first (caps2=0x7efc901a18f0, caps1=0x7efc680e6190) at gstcaps.c:1581
#9  gst_caps_intersect_full (caps1=caps1@entry=0x7efc680e6190, caps2=caps2@entry=0x7efc901a18f0, mode=mode@entry=GST_CAPS_INTERSECT_FIRST) at gstcaps.c:1634
#10 0x00007efc9491b138 in gst_base_transform_query_caps (filter=0x7efc74191940, pad=0x7efc9017e710, trans=0x7efc6401e790) at gstbasetransform.c:743
#11 gst_base_transform_default_query (trans=0x7efc6401e790, direction=<optimized out>, query=0x7efc7014b2d0) at gstbasetransform.c:1512
#12 0x00007efc957854ea in gst_pad_query (pad=pad@entry=0x7efc9017e710, query=query@entry=0x7efc7014b2d0) at gstpad.c:3511
#13 0x00007efc95785ad0 in gst_pad_peer_query (pad=pad@entry=0x7efc740342a0, query=query@entry=0x7efc7014b2d0) at gstpad.c:3642
#14 0x00007efc957b6d54 in gst_pad_peer_query_caps (pad=pad@entry=0x7efc740342a0, filter=filter@entry=0x7efc74191940) at gstutils.c:2810
#15 0x00007efc9491af64 in gst_base_transform_query_caps (filter=0x7efc60110ad0, pad=0x7efc9017e2b0, trans=0x7efc64020000) at gstbasetransform.c:715
#16 gst_base_transform_default_query (trans=0x7efc64020000, direction=<optimized out>, query=0x7efc782121e0) at gstbasetransform.c:1512
#17 0x00007efc957854ea in gst_pad_query (pad=pad@entry=0x7efc9017e2b0, query=query@entry=0x7efc782121e0) at gstpad.c:3511
#18 0x00007efc95785ad0 in gst_pad_peer_query (pad=pad@entry=0x7efc9017f430, query=query@entry=0x7efc782121e0) at gstpad.c:3642
#19 0x00007efc957b6d54 in gst_pad_peer_query_caps (pad=pad@entry=0x7efc9017f430, filter=filter@entry=0x7efc60110ad0) at gstutils.c:2810
#20 0x00007efc9491af64 in gst_base_transform_query_caps (filter=0x7efc7819c940, pad=0x7efc9017f660, trans=0x7efc64017c50) at gstbasetransform.c:715
#21 gst_base_transform_default_query (trans=0x7efc64017c50, direction=<optimized out>, query=0x7efc6009f9e0) at gstbasetransform.c:1512
#22 0x00007efc957854ea in gst_pad_query (pad=pad@entry=0x7efc9017f660, query=query@entry=0x7efc6009f9e0) at gstpad.c:3511
#23 0x00007efc957b4914 in gst_pad_query_caps (pad=0x7efc9017f660, filter=filter@entry=0x7efc7819c940) at gstutils.c:2764
#24 0x00007efc9491b5f4 in gst_base_transform_acceptcaps_default (trans=0x7efc64017c50, direction=GST_PAD_SINK, caps=0x7efc7819c940) at gstbasetransform.c:1261
#25 0x00007efc9491b251 in gst_base_transform_default_query (trans=0x7efc64017c50, direction=GST_PAD_SINK, query=0x7efc780eb000) at gstbasetransform.c:1500
#26 0x00007efc957854ea in gst_pad_query (pad=pad@entry=0x7efc9017f660, query=query@entry=0x7efc780eb000) at gstpad.c:3511
#27 0x00007efc957b6f36 in gst_pad_query_accept_caps (pad=pad@entry=0x7efc9017f660, caps=<optimized out>) at gstutils.c:2847
#28 0x00007efc9577e7fa in pre_eventfunc_check (event=0x7efc74023cc0, pad=0x7efc9017f660) at gstpad.c:4914
#29 gst_pad_send_event_unchecked (pad=pad@entry=0x7efc9017f660, event=event@entry=0x7efc74023cc0, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:5029
#30 0x00007efc9577eec4 in gst_pad_push_event_unchecked (pad=pad@entry=0x7efc9017e080, event=0x7efc74023cc0, type=type@entry=GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM) at gstpad.c:4731
#31 0x00007efc9577f348 in push_sticky (pad=0x7efc9017e080, ev=0x7efc7e5eec10, user_data=0x7efc7e5eec70) at gstpad.c:3370
#32 0x00007efc9577d632 in events_foreach (pad=pad@entry=0x7efc9017e080, func=func@entry=0x7efc9577f1f0 <push_sticky>, user_data=user_data@entry=0x7efc7e5eec70) at gstpad.c:530
#33 0x00007efc95787618 in check_sticky (event=0x7efc74023cc0, pad=0x7efc9017e080) at gstpad.c:3426
#34 gst_pad_push_event (pad=0x7efc9017e080, event=event@entry=0x7efc74023cc0) at gstpad.c:4849
#35 0x00007efc892972c7 in gst_queue_push_one (queue=0x7efc78116110) at gstqueue.c:1167
#36 gst_queue_loop (pad=<optimized out>) at gstqueue.c:1244
#37 0x00007efc957ad549 in gst_task_func (task=0x7efc60185830) at gsttask.c:316
#38 0x00007efca90aa88c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007efca90a9f05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007efcaa4f8182 in start_thread (arg=0x7efc7e5ef700) at pthread_create.c:312
#41 0x00007efcae27747d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 7 (Thread 0x7efc7d5ed700 (LWP 16939)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efca90c6bf7 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efc957ad70c in gst_task_func (task=0x7efc60185950) at gsttask.c:301
#3  0x00007efca90aa88c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efca90a9f05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007efcaa4f8182 in start_thread (arg=0x7efc7d5ed700) at pthread_create.c:312
#6  0x00007efcae27747d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7efc96bb7700 (LWP 16940)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efca90c6bf7 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efc957ad70c in gst_task_func (task=0x7efc60185a70) at gsttask.c:301
#3  0x00007efca90aa88c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efca90a9f05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007efcaa4f8182 in start_thread (arg=0x7efc96bb7700) at pthread_create.c:312
#6  0x00007efcae27747d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7efc8a76c700 (LWP 16941)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efca90c6bf7 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efc957ad70c in gst_task_func (task=0x7efc601853b0) at gsttask.c:301
#3  0x00007efca90aa88c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efca90a9f05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007efcaa4f8182 in start_thread (arg=0x7efc8a76c700) at pthread_create.c:312
#6  0x00007efcae27747d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7efc7fffe700 (LWP 16942)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efca90c6bf7 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efc94928142 in _gst_data_queue_wait_non_empty (queue=queue@entry=0x7efc64001c50) at gstdataqueue.c:551
#3  0x00007efc94929556 in gst_data_queue_pop (queue=0x7efc64001c50, item=item@entry=0x7efc7fffdd38) at gstdataqueue.c:593
#4  0x00007efc892930f4 in gst_multi_queue_loop (pad=<optimized out>) at gstmultiqueue.c:1218
#5  0x00007efc957ad549 in gst_task_func (task=0x7efc90305ef0) at gsttask.c:316
#6  0x00007efca90aa88c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007efca90a9f05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007efcaa4f8182 in start_thread (arg=0x7efc7fffe700) at pthread_create.c:312
#9  0x00007efcae27747d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7efc7f7fd700 (LWP 16943)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007efca90c6bf7 in g_cond_wait () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007efc957ad70c in gst_task_func (task=0x7efc60185ef0) at gsttask.c:301
#3  0x00007efca90aa88c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007efca90a9f05 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007efcaa4f8182 in start_thread (arg=0x7efc7f7fd700) at pthread_create.c:312
#6  0x00007efcae27747d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7efc7ddee700 (LWP 17155)):
#0  0x00007efcae26a12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007efcabd62031 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#2  0x00007efcabd5383c in pa_mainloop_poll () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007efcabd53ece in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007efcabd53f80 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007efcabd61fe3 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007efca65aef08 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-4.0.so
#7  0x00007efcaa4f8182 in start_thread (arg=0x7efc7ddee700) at pthread_create.c:312
#8  0x00007efcae27747d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7efcb3aef800 (LWP 2419)):
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007efcaa4fa672 in _L_lock_953 () from /lib/x86_64-linux-gnu/libpthread.so.0
#2  0x00007efcaa4fa4da in __GI___pthread_mutex_lock (mutex=0x7efc64016af0) at ../nptl/pthread_mutex_lock.c:114
#3  0x00007efc9491c5f8 in gst_base_transform_activate (trans=0x7efc64017c50, active=<optimized out>) at gstbasetransform.c:2334
#4  0x00007efc9491c765 in gst_base_transform_sink_activate_mode (pad=0x7efc64016af0, parent=0x7efc64017c50, mode=GST_PAD_MODE_NONE, active=0) at gstbasetransform.c:2367
#5  0x00007efc95783b5d in gst_pad_activate_mode (pad=pad@entry=0x7efc9017f660, mode=mode@entry=GST_PAD_MODE_PUSH, active=active@entry=0) at gstpad.c:1083
#6  0x00007efc957842a0 in gst_pad_set_active (pad=0x7efc9017f660, active=0) at gstpad.c:969
#7  0x00007efc9576843b in activate_pads (vpad=<optimized out>, ret=0x7ffd22285770, active=0x7ffd222857cc) at gstelement.c:2687
#8  0x00007efc9577745c in gst_iterator_fold (it=it@entry=0x7efc6400d660, func=func@entry=0x7efc95768420 <activate_pads>, ret=ret@entry=0x7ffd22285770, user_data=user_data@entry=0x7ffd222857cc) at gstiterator.c:614
#9  0x00007efc957687ea in iterator_activate_fold_with_resync (iter=iter@entry=0x7efc6400d660, user_data=user_data@entry=0x7ffd222857cc, func=0x7efc95768420 <activate_pads>) at gstelement.c:2707
#10 0x00007efc9576a3a6 in gst_element_pads_activate (element=element@entry=0x7efc64017c50, active=0) at gstelement.c:2751
#11 0x00007efc9576a6ba in gst_element_change_state_func (element=0x7efc64017c50, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstelement.c:2815
#12 0x00007efc9576c232 in gst_element_change_state (element=element@entry=0x7efc64017c50, transition=transition@entry=GST_STATE_CHANGE_PAUSED_TO_READY) at gstelement.c:2602
#13 0x00007efc9576c90c in gst_element_set_state_func (element=0x7efc64017c50, state=GST_STATE_READY) at gstelement.c:2558
#14 0x00007efc95752659 in gst_bin_element_set_state (next=GST_STATE_READY, current=GST_STATE_PAUSED, start_time=673924000, base_time=118672558000, element=0x7efc64017c50, bin=0x7efc901803d0) at gstbin.c:2325
#15 gst_bin_change_state_func (element=0x7efc901803d0, transition=GST_STATE_CHANGE_PAUSED_TO_READY) at gstbin.c:2648
#16 0x00007efc9576c232 in gst_element_change_state (element=element@entry=0x7efc901803d0, transition=transition@entry=GST_STATE_CHANGE_PAUSED_TO_READY) at gstelement.c:2602
#17 0x00007efc9576c90c in gst_element_set_state_func (element=0x7efc901803d0, state=GST_STATE_NULL) at gstelement.c:2558
#18 0x00007efc95a382fa in ?? () from /usr/lib/x86_64-linux-gnu/qt4/plugins/phonon_backend/phonon_gstreamer.so
#19 0x00007efc95a383a9 in ?? () from /usr/lib/x86_64-linux-gnu/qt4/plugins/phonon_backend/phonon_gstreamer.so
#20 0x00007efcb14da524 in Phonon::MediaNodePrivate::deleteBackendObject() () from /usr/lib/x86_64-linux-gnu/libphonon.so.4
#21 0x00007efcb14c7cce in ?? () from /usr/lib/x86_64-linux-gnu/libphonon.so.4
#22 0x00007efcb14c7f89 in ?? () from /usr/lib/x86_64-linux-gnu/libphonon.so.4
#23 0x00007efcae1b9259 in __run_exit_handlers (status=1, listp=0x7efcae53b6c8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
#24 0x00007efcae1b92a5 in __GI_exit (status=<optimized out>) at exit.c:104
#25 0x00007efcaf8ad878 in qt_xio_errhandler () at kernel/qapplication_x11.cpp:783
#26 0x00007efcb05508d0 in KApplication::xioErrhandler (this=0x1f702d0, dpy=0x1fb22c0) at ../../kdeui/kernel/kapplication.cpp:419
#27 0x00007efcb11a65ee in _XIOError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#28 0x00007efcb11a3fed in _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#29 0x00007efcb11960db in XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#30 0x00007efcaf8e862c in x11EventSourceCheck (s=0x1f7f6c0) at kernel/qguieventdispatcher_glib.cpp:85
#31 0x00007efca9084a61 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007efca9084f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007efca90850ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007efcaec067be in QEventDispatcherGlib::processEvents (this=0x1f1ba00, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#35 0x00007efcaf8e8bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007efcaebd80af in QEventLoop::processEvents (this=this@entry=0x7ffd22285e50, flags=...) at kernel/qeventloop.cpp:149
#37 0x00007efcaebd83a5 in QEventLoop::exec (this=this@entry=0x7ffd22285e50, flags=...) at kernel/qeventloop.cpp:204
#38 0x00007efcaebddb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#39 0x00007efcaf84537c in QApplication::exec () at kernel/qapplication.cpp:3828
#40 0x000000000044d7f4 in main (argc=3, argv=0x7ffd22286cf8) at ../../kalarm/main.cpp:131


Reproducible: Didn't try

Steps to Reproduce:
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