[gstreamer-bugs] [Bug 592864] New: deadlocks from recent inputselector/streamselector change

Mon Aug 24 01:46:47 PDT 2009

http://bugzilla.gnome.org/show_bug.cgi?id=592864

           Summary: deadlocks from recent inputselector/streamselector
                    change
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: thaytan at mad.scientist.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


--- Comment #0 from Jan Schmidt <thaytan at mad.scientist.com> 2009-08-24 08:46:43 UTC ---
I'm seeing deadlocks playing files with Totem. Reverting this commit fixes
them:

commit 0c1fa2e8abc66b80ae37581160e28ae39210ba13
Author: Sebastian Dröge <sebastian.droege at collabora.co.uk>
Date:   Tue Aug 18 21:45:31 2009 +0200

    streamselector/inputselector: Use iterate internal links instead of
deprecated get internal links

Backtrace:

Thread 8 (Thread 0xb6283b90 (LWP 14592)):
#0  0xb7f0d430 in __kernel_vsyscall ()
#1  0xb79938f6 in nanosleep () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb71e4b52 in g_usleep () from /usr/lib/libglib-2.0.so.0
#3  0xb62a89ee in gst_xvimagesink_event_thread (xvimagesink=0x92ac190) at
xvimagesink.c:1633
#4  0xb71e27bf in ?? () from /usr/lib/libglib-2.0.so.0
#5  0xb798c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#6  0xb6ffb49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 7 (Thread 0xb59fab90 (LWP 14594)):
#0  0xb7f0d430 in __kernel_vsyscall ()
#1  0xb79900e5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb62d4174 in gst_queue_chain (pad=0x9be9bf8, buffer=0xb5021500) at
gstqueue.c:934
#3  0xb7e16567 in gst_pad_chain_data_unchecked (pad=0x9be9bf8, is_buffer=1,
data=0xb5021500) at gstpad.c:4042
#4  0xb7e17199 in gst_pad_push_data (pad=0x9be9b30, is_buffer=1,
data=0xb5021500) at gstpad.c:4271
#5  0xb3ed24a4 in gst_qtdemux_loop_state_movie (qtdemux=0x9be8060) at
qtdemux.c:2316
#6  0xb3ed58c3 in gst_qtdemux_loop (pad=0x92eecb8) at qtdemux.c:2371
#7  0xb7e3c9b3 in gst_task_func (task=0x9beb800) at gsttask.c:234
#8  0xb7e3e337 in default_func (tdata=0x9b43908, pool=0x8e5a010) at
gsttaskpool.c:70
#9  0xb71e3e26 in ?? () from /usr/lib/libglib-2.0.so.0
#10 0xb71e27bf in ?? () from /usr/lib/libglib-2.0.so.0
#11 0xb798c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0xb6ffb49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 6 (Thread 0xb31afb90 (LWP 14595)):
#0  0xb7f0d430 in __kernel_vsyscall ()
#1  0xb7992cf9 in __lll_lock_wait () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb798e129 in _L_lock_89 () from /lib/tls/i686/cmov/libpthread.so.0
#3  0xb798da32 in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0
#4  0xb6319b72 in gst_stream_selector_activate_sinkpad (sel=0x9b5aed0,
pad=0x9b5d020) at gststreamselector.c:670
#5  0xb631ad1f in gst_selector_pad_event (pad=0x9b5d020, event=0x9c00e00) at
gststreamselector.c:245
#6  0xb7e1dcdc in gst_pad_send_event (pad=0x9b5d020, event=0x9c00e00) at
gstpad.c:4962
#7  0xb7e1e435 in gst_pad_push_event (pad=0x9b5ade8, event=0x9c00e00) at
gstpad.c:4818
#8  0xb7e0800d in gst_proxy_pad_do_event (pad=0x92ba478, event=0x9c00e00) at
gstghostpad.c:128
#9  0xb7e1dcdc in gst_pad_send_event (pad=0x92ba478, event=0x9c00e00) at
gstpad.c:4962
#10 0xb7e1e435 in gst_pad_push_event (pad=0x9be9e50, event=0x9c00e00) at
gstpad.c:4818
#11 0xb3f6f32c in gst_ffmpegdec_sink_event (pad=0x9be9d88, event=0x9c00e00) at
gstffmpegdec.c:2361
#12 0xb7e1dcdc in gst_pad_send_event (pad=0x9be9d88, event=0x9c00e00) at
gstpad.c:4962
#13 0xb7e1e435 in gst_pad_push_event (pad=0x9be9cc0, event=0x9c00e00) at
gstpad.c:4818
#14 0xb62d56af in gst_queue_loop (pad=0x9be9cc0) at gstqueue.c:1094
#15 0xb7e3c9b3 in gst_task_func (task=0x9bebe60) at gsttask.c:234
#16 0xb7e3e337 in default_func (tdata=0x9b38910, pool=0x8e5a010) at
gsttaskpool.c:70
#17 0xb71e3e26 in ?? () from /usr/lib/libglib-2.0.so.0
#18 0xb71e27bf in ?? () from /usr/lib/libglib-2.0.so.0
#19 0xb798c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#20 0xb6ffb49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 5 (Thread 0xb1e53b90 (LWP 14596)):
#0  0xb7f0d430 in __kernel_vsyscall ()
#1  0xb79900e5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb62d4ee4 in gst_queue_loop (pad=0xb5005b28) at gstqueue.c:1139
#3  0xb7e3c9b3 in gst_task_func (task=0x9bebee8) at gsttask.c:234
#4  0xb7e3e337 in default_func (tdata=0x9a11a38, pool=0x8e5a010) at
gsttaskpool.c:70
#5  0xb71e3e26 in ?? () from /usr/lib/libglib-2.0.so.0
#6  0xb71e27bf in ?? () from /usr/lib/libglib-2.0.so.0
#7  0xb798c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb6ffb49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 4 (Thread 0xb163cb90 (LWP 14597)):
#0  0xb7f0d430 in __kernel_vsyscall ()
#1  0xb6ff0ae7 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0xb5a31912 in ?? () from /usr/lib/libpulse.so.0
#3  0xb5a213c0 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#4  0xb5a22d43 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#5  0xb5a22e14 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#6  0xb5a316c3 in ?? () from /usr/lib/libpulse.so.0
#7  0xb5a5bef2 in ?? () from /usr/lib/libpulse.so.0
#8  0xb798c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9  0xb6ffb49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xace3ab90 (LWP 14598)):
#0  0xb7f0d430 in __kernel_vsyscall ()
#1  0xb79900e5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7ed730c in gst_base_sink_wait_preroll (sink=0x92c0e98) at
gstbasesink.c:2031
#3  0xb7ed7e8e in gst_base_sink_do_preroll (sink=0x92c0e98, obj=0x9b75b80) at
gstbasesink.c:2088
#4  0xb7edceba in gst_base_sink_render_object (basesink=0x92c0e98,
pad=0xb5007718, is_list=0, obj=0x9b75b80) at gstbasesink.c:2261
#5  0xb7edef37 in gst_base_sink_queue_object_unlocked (basesink=0x92c0e98,
pad=0xb5007718, is_list=0, obj=0x9b75b80, prerollable=1)
    at gstbasesink.c:2948
#6  0xb7ee0fec in gst_base_sink_chain_unlocked (basesink=0x92c0e98,
pad=0xb5007718, is_list=0, obj=0x9b75b80) at gstbasesink.c:3318
#7  0xb7ee1554 in gst_base_sink_chain_main (basesink=0x92c0e98, pad=0xb5007718,
is_list=0, obj=0x9b75b80) at gstbasesink.c:3356
#8  0xb7e16567 in gst_pad_chain_data_unchecked (pad=0xb5007718, is_buffer=1,
data=0x9b75b80) at gstpad.c:4042
#9  0xb7e17199 in gst_pad_push_data (pad=0x9b8a848, is_buffer=1,
data=0x9b75b80) at gstpad.c:4271
#10 0xb7e05bed in gst_proxy_pad_do_chain (pad=0x9b8a438, buffer=0x9b75b80) at
gstghostpad.c:179
#11 0xb7e16567 in gst_pad_chain_data_unchecked (pad=0x9b8a438, is_buffer=1,
data=0x9b75b80) at gstpad.c:4042
#12 0xb7e17199 in gst_pad_push_data (pad=0x9b8a920, is_buffer=1,
data=0x9b75b80) at gstpad.c:4271
#13 0xb7e05bed in gst_proxy_pad_do_chain (pad=0x9b8a520, buffer=0x9b75b80) at
gstghostpad.c:179
#14 0xb7e16567 in gst_pad_chain_data_unchecked (pad=0x9b8a520, is_buffer=1,
data=0x9b75b80) at gstpad.c:4042
#15 0xb7e17199 in gst_pad_push_data (pad=0x929e000, is_buffer=1,
data=0x9b75b80) at gstpad.c:4271
#16 0xb7e05bed in gst_proxy_pad_do_chain (pad=0x929d010, buffer=0x9b75b80) at
gstghostpad.c:179
#17 0xb7e16567 in gst_pad_chain_data_unchecked (pad=0x929d010, is_buffer=1,
data=0x9b75b80) at gstpad.c:4042
#18 0xb7e17199 in gst_pad_push_data (pad=0x92a21a0, is_buffer=1,
data=0x9b75b80) at gstpad.c:4271
#19 0xb7ef5dcf in gst_base_transform_chain (pad=0x92a23f8, buffer=0x9b75b80) at
gstbasetransform.c:2081
#20 0xb7e16567 in gst_pad_chain_data_unchecked (pad=0x92a23f8, is_buffer=1,
data=0x9b75b80) at gstpad.c:4042
#21 0xb7e17199 in gst_pad_push_data (pad=0x929e6c0, is_buffer=1,
data=0x9b75b80) at gstpad.c:4271
#22 0xb7e05bed in gst_proxy_pad_do_chain (pad=0x929d580, buffer=0x9b75b80) at
gstghostpad.c:179
#23 0xb7e16567 in gst_pad_chain_data_unchecked (pad=0x929d580, is_buffer=1,
data=0x9b75b80) at gstpad.c:4042
#24 0xb7e17199 in gst_pad_push_data (pad=0xb50074c0, is_buffer=1,
data=0x9b75b80) at gstpad.c:4271
#25 0xb7ef5dcf in gst_base_transform_chain (pad=0xb50073f8, buffer=0x9b75b80)
at gstbasetransform.c:2081
#26 0xb7e16567 in gst_pad_chain_data_unchecked (pad=0xb50073f8, is_buffer=1,
data=0x9b75b80) at gstpad.c:4042
#27 0xb7e17199 in gst_pad_push_data (pad=0xb5007330, is_buffer=1,
data=0x9b75b80) at gstpad.c:4271
#28 0xb7ef5dcf in gst_base_transform_chain (pad=0xb5007268, buffer=0x9b75b80)
at gstbasetransform.c:2081
#29 0xb7e16567 in gst_pad_chain_data_unchecked (pad=0xb5007268, is_buffer=1,
data=0x9b75b80) at gstpad.c:4042
#30 0xb7e17199 in gst_pad_push_data (pad=0xb50071a0, is_buffer=1,
data=0x9b75b80) at gstpad.c:4271
#31 0xb7ef5dcf in gst_base_transform_chain (pad=0xb50070d8, buffer=0x9b75b80)
at gstbasetransform.c:2081
#32 0xb7e16567 in gst_pad_chain_data_unchecked (pad=0xb50070d8, is_buffer=1,
data=0x9b75b80) at gstpad.c:4042
#33 0xb7e17199 in gst_pad_push_data (pad=0x92ba628, is_buffer=1,
data=0x9b75b80) at gstpad.c:4271
#34 0xb7e05bed in gst_proxy_pad_do_chain (pad=0x9b8a350, buffer=0x9b75b80) at
gstghostpad.c:179
#35 0xb7e16567 in gst_pad_chain_data_unchecked (pad=0x9b8a350, is_buffer=1,
data=0x9b75b80) at gstpad.c:4042
#36 0xb7e17199 in gst_pad_push_data (pad=0xb5005f10, is_buffer=1,
data=0x9b75b80) at gstpad.c:4271
#37 0xb62d5272 in gst_queue_loop (pad=0xb5005f10) at gstqueue.c:1048
#38 0xb7e3c9b3 in gst_task_func (task=0x9b8b828) at gsttask.c:234
#39 0xb7e3e337 in default_func (tdata=0x9a11a00, pool=0x8e5a010) at
gsttaskpool.c:70
#40 0xb71e3e26 in ?? () from /usr/lib/libglib-2.0.so.0
#41 0xb71e27bf in ?? () from /usr/lib/libglib-2.0.so.0
#42 0xb798c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#43 0xb6ffb49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xac5f2b90 (LWP 14599)):
#0  0xb7f0d430 in __kernel_vsyscall ()
#1  0xb79900e5 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb62d4ee4 in gst_queue_loop (pad=0xb50058d0) at gstqueue.c:1139
#3  0xb7e3c9b3 in gst_task_func (task=0x9b8b8b0) at gsttask.c:234
#4  0xb7e3e337 in default_func (tdata=0x9a25498, pool=0x8e5a010) at
gsttaskpool.c:70
#5  0xb71e3e26 in ?? () from /usr/lib/libglib-2.0.so.0
#6  0xb71e27bf in ?? () from /usr/lib/libglib-2.0.so.0
#7  0xb798c4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb6ffb49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb6724760 (LWP 14590)):
#0  0xb7f0d430 in __kernel_vsyscall ()
#1  0xb7992cf9 in __lll_lock_wait () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb798e129 in _L_lock_89 () from /lib/tls/i686/cmov/libpthread.so.0
#3  0xb798da32 in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0
#4  0xb631983f in gst_stream_selector_get_linked_pad (pad=0x9be9f18, strict=1)
at gststreamselector.c:608
#5  0xb6319ad5 in _iterate_next (it=0x9c09ab0, result=0xbf8275b8) at
gststreamselector.c:706
#6  0xb7e0d874 in gst_iterator_next (it=0x9c09ab0, elem=0xbf8275b8) at
gstiterator.c:306
#7  0xb7e153ca in gst_pad_dispatcher (pad=0x9be9f18, dispatch=0xb7e145b0
<gst_pad_query>, data=0x8e87800) at gstpad.c:3479
#8  0xb7e1563e in gst_pad_query_default (pad=0x9be9f18, query=0x8e87800) at
gstpad.c:3629
#9  0xb7e14676 in gst_pad_query (pad=0x9be9f18, query=0x8e87800) at
gstpad.c:3545
#10 0xb62d2947 in gst_queue_handle_src_query (pad=0xb50058d0, query=0x8e87800)
at gstqueue.c:1210
#11 0xb7e14676 in gst_pad_query (pad=0xb50058d0, query=0x8e87800) at
gstpad.c:3545
#12 0xb7e07fb9 in gst_proxy_pad_do_query (pad=0x9b8a9f8, query=0x8e87800) at
gstghostpad.c:140
#13 0xb7e14676 in gst_pad_query (pad=0x9b8a9f8, query=0x8e87800) at
gstpad.c:3545
#14 0xb7e15555 in gst_pad_dispatcher (pad=0x92a2010, dispatch=0xb7e145b0
<gst_pad_query>, data=0x8e87800) at gstpad.c:3488
#15 0xb7e1563e in gst_pad_query_default (pad=0x92a2010, query=0x8e87800) at
gstpad.c:3629
#16 0xb7e14676 in gst_pad_query (pad=0x92a2010, query=0x8e87800) at
gstpad.c:3545
#17 0xb7e15555 in gst_pad_dispatcher (pad=0xb5010998, dispatch=0xb7e145b0
<gst_pad_query>, data=0x8e87800) at gstpad.c:3488
#18 0xb7e1563e in gst_pad_query_default (pad=0xb5010998, query=0x8e87800) at
gstpad.c:3629
#19 0xb7e14676 in gst_pad_query (pad=0xb5010998, query=0x8e87800) at
gstpad.c:3545
#20 0xb7e15555 in gst_pad_dispatcher (pad=0xb5010b28, dispatch=0xb7e145b0
<gst_pad_query>, data=0x8e87800) at gstpad.c:3488
#21 0xb7e1563e in gst_pad_query_default (pad=0xb5010b28, query=0x8e87800) at
gstpad.c:3629
#22 0xb7e14676 in gst_pad_query (pad=0xb5010b28, query=0x8e87800) at
gstpad.c:3545
#23 0xb7e07fb9 in gst_proxy_pad_do_query (pad=0x929e0d8, query=0x8e87800) at
gstghostpad.c:140
#24 0xb7e14676 in gst_pad_query (pad=0x929e0d8, query=0x8e87800) at
gstpad.c:3545
#25 0xb7e07fb9 in gst_proxy_pad_do_query (pad=0x929e360, query=0x8e87800) at
gstghostpad.c:140
#26 0xb7e14676 in gst_pad_query (pad=0x929e360, query=0x8e87800) at
gstpad.c:3545
#27 0xb7e07fb9 in gst_proxy_pad_do_query (pad=0x929e288, query=0x8e87800) at
gstghostpad.c:140
#28 0xb7e14676 in gst_pad_query (pad=0x929e288, query=0x8e87800) at
gstpad.c:3545
#29 0xb7ed85c2 in gst_base_sink_peer_query (sink=<value optimized out>,
query=0x8e87800) at gstbasesink.c:4179
#30 0xb7ee29be in gst_base_sink_query (element=0x92ac190, query=0x8e87800) at
gstbasesink.c:4557
#31 0xb7dfc6f5 in gst_element_query (element=0x92ac190, query=0x8e87800) at
gstelement.c:1613
#32 0xb7de94ee in bin_query_duration_fold (item=0x92ac190, ret=0xbf827da8,
fold=0xbf827d90) at gstbin.c:3219
#33 0xb7e0d987 in gst_iterator_fold (it=0x9c0a290, func=0xb7de94c0
<bin_query_duration_fold>, ret=0xbf827da8, user_data=0xbf827d90)
    at gstiterator.c:545
#34 0xb7de8dcd in gst_bin_query (element=0x929e1b0, query=0x8e87800) at
gstbin.c:3440
#35 0xb7dfc6f5 in gst_element_query (element=0x929e1b0, query=0x8e87800) at
gstelement.c:1613
#36 0xb7de94ee in bin_query_duration_fold (item=0x929e1b0, ret=0xbf827ee8,
fold=0xbf827ed0) at gstbin.c:3219
#37 0xb7e0d987 in gst_iterator_fold (it=0x9c0a200, func=0xb7de94c0
<bin_query_duration_fold>, ret=0xbf827ee8, user_data=0xbf827ed0)
    at gstiterator.c:545
#38 0xb7de8dcd in gst_bin_query (element=0x92a2268, query=0x8e87800) at
gstbin.c:3440
#39 0xb7dfc6f5 in gst_element_query (element=0x92a2268, query=0x8e87800) at
gstelement.c:1613
#40 0xb7de94ee in bin_query_duration_fold (item=0x92a2268, ret=0xbf828028,
fold=0xbf828010) at gstbin.c:3219
#41 0xb7e0d987 in gst_iterator_fold (it=0x9c00920, func=0xb7de94c0
<bin_query_duration_fold>, ret=0xbf828028, user_data=0xbf828010)
#42 0xb7de8dcd in gst_bin_query (element=0x8fe1d40, query=0x8e87800) at
gstbin.c:3440
#43 0xb7dfc6f5 in gst_element_query (element=0x8fe1d40, query=0x8e87800) at
gstelement.c:1613
#44 0xb7de94ee in bin_query_duration_fold (item=0x8fe1d40, ret=0xbf828168,
fold=0xbf828150) at gstbin.c:3219
#45 0xb7e0d987 in gst_iterator_fold (it=0x9c00890, func=0xb7de94c0
<bin_query_duration_fold>, ret=0xbf828168, user_data=0xbf828150)
    at gstiterator.c:545
#46 0xb7de8dcd in gst_bin_query (element=0xb5010808, query=0x8e87800) at
gstbin.c:3440
#47 0xb7dfc6f5 in gst_element_query (element=0xb5010808, query=0x8e87800) at
gstelement.c:1613
#48 0xb7de94ee in bin_query_duration_fold (item=0xb5010808, ret=0xbf8282a8,
fold=0xbf828290) at gstbin.c:3219
#49 0xb7e0d987 in gst_iterator_fold (it=0x9c00800, func=0xb7de94c0
<bin_query_duration_fold>, ret=0xbf8282a8, user_data=0xbf828290)
    at gstiterator.c:545
#50 0xb7de8dcd in gst_bin_query (element=0x929b010, query=0x8e87800) at
gstbin.c:3440
#51 0xb7dfc6f5 in gst_element_query (element=0x929b010, query=0x8e87800) at
gstelement.c:1613
#52 0xb7e439ca in gst_element_query_duration (element=0x929b010,
format=0xbf828354, duration=0xbf828348) at gstutils.c:2146
#53 0x0808488c in bacon_video_widget_get_stream_length ()
#54 0x080897e8 in bacon_video_widget_get_metadata ()
#55 0xb47d4d98 in bacon_video_widget_properties_update () from
/usr/lib/totem/plugins/properties/libmovie-properties.so
#56 0xb47d4827 in ?? () from
/usr/lib/totem/plugins/properties/libmovie-properties.so
#57 0x0809a7e1 in totemobject_marshal_VOID__STRING_STRING_STRING_UINT ()
#58 0xb7245c7b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#59 0xb725be57 in ?? () from /usr/lib/libgobject-2.0.so.0
#60 0xb725d4b9 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#61 0xb725d936 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#62 0x080656d0 in totem_metadata_updated ()
#63 0x08065858 in ?? ()
#64 0x08065954 in ?? ()
#65 0xb72533a4 in g_cclosure_marshal_VOID__VOID () from
/usr/lib/libgobject-2.0.so.0
#66 0xb7245c7b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#67 0xb725be57 in ?? () from /usr/lib/libgobject-2.0.so.0
#68 0xb725d4b9 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#69 0xb725d936 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#70 0x08085072 in ?? ()
#71 0x0808f6a0 in ?? ()
#72 0xb7defffa in marshal_VOID__MINIOBJECT (closure=0x8e488c0,
return_value=0x0, n_param_values=2, param_values=0x9b4af40,
invocation_hint=0xbf828dbc, 
    marshal_data=0xb7247c80) at gstbus.c:134
#73 0xb7245c7b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#74 0xb725be57 in ?? () from /usr/lib/libgobject-2.0.so.0
#75 0xb725d4b9 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#76 0xb725d936 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#77 0xb7dee38a in gst_bus_async_signal_func (bus=0x92848c8, message=0xb500b060,
data=0x0) at gstbus.c:1098
#78 0xb7def396 in gst_bus_source_dispatch (source=0x929ab70,
callback=0xb7dee2d0 <gst_bus_async_signal_func>, user_data=0x0) at gstbus.c:761
#79 0xb71b7b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#80 0xb71bb0eb in ?? () from /usr/lib/libglib-2.0.so.0
#81 0xb71bb5ba in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#82 0xb76ae7d9 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#83 0x08062085 in main ()
#0  0xb7f0d430 in __kernel_vsyscall ()

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