Bug 524937 – [playbin2] Playing local mp3 crashes playbin2

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Bug 524937 - [playbin2] Playing local mp3 crashes playbin2


Summary:	[playbin2] Playing local mp3 crashes playbin2


Status:	RESOLVED OBSOLETE

Product:	GStreamer
Classification:	Platform
Component:	gst-plugins-base
Version:	0.10.18
Hardware:	Other Linux

Importance:	Normal normal
Target Milestone:	git master
Assigned To:	GStreamer Maintainers
QA Contact:	GStreamer Maintainers

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2008-03-29 10:55 UTC by Alex Hixon
Modified:	2010-02-09 10:13 UTC

See Also:
GNOME target:	---
GNOME version:	---

Description Alex Hixon 2008-03-29 10:55:07 UTC

Playing a local MP3 file causes a crash within playbin2.
Running the same example pipeline below with filesrc location=xyz ! decodebin2 ! audioconvert ! alsasink works fine.

For example:

$ gst-launch-0.10 playbin2 uri="file:///home/alex/smallworld101806.mp3"
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Caught SIGSEGV accessing address (nil)

+ Trace 193601

#0 __kernel_vsyscall
#1 poll
from /lib/i686/cmov/libc.so.6
#2 ??
from /usr/lib/libglib-2.0.so.0
#3 ??
#4 ??
#5 ??
#6 ??
#7 ??
#8 ??
from /usr/lib/libglib-2.0.so.0
#9 ??
from /usr/lib/libglib-2.0.so.0
#10 ??
#11 ??
#12 ??
#13 ??
#14 ??
#15 ??
from /lib/i686/cmov/libc.so.6
#16 ??
from /lib/i686/cmov/libpthread.so.0
#17 ??
from /lib/i686/cmov/libpthread.so.0
#18 g_thread_self
from /usr/lib/libglib-2.0.so.0
#19 g_main_loop_run
from /usr/lib/libglib-2.0.so.0
#20 gst_bus_poll
#21 event_loop
#22 main
at gst-launch.c line 729
#23 __libc_start_main
from /lib/i686/cmov/libc.so.6
#24 _start
#0 __kernel_vsyscall
#1 __lll_unlock_wake
from /lib/i686/cmov/libpthread.so.0
#2 _L_unlock_90
from /lib/i686/cmov/libpthread.so.0
#3 __pthread_mutex_unlock_usercnt
#4 g_static_rec_mutex_unlock
from /usr/lib/libglib-2.0.so.0
#5 gst_base_src_perform_seek
#6 gst_base_src_activate_push
#7 gst_pad_activate_push
#8 gst_pad_activate_default
at gstpad.c line 569
#9 gst_pad_set_active
at gstpad.c line 658
#10 activate_pads
#11 gst_iterator_fold
#12 iterator_activate_fold_with_resync
#13 gst_element_pads_activate
#14 gst_element_change_state_func
#15 gst_base_src_change_state
#16 gst_element_change_state
#17 gst_element_continue_state
#18 gst_element_change_state
#19 gst_element_set_state_func
#20 gst_element_set_state
#21 gst_bin_change_state_func
#22 gst_uri_decode_bin_change_state
#23 gst_element_change_state
#24 gst_element_continue_state
#25 gst_element_change_state
#26 gst_element_set_state_func
#27 gst_element_set_state
#28 setup_next_source
at gstplaybin2.c line 1697
#29 gst_play_bin_change_state
#30 gst_element_change_state
#31 gst_element_continue_state
#32 gst_element_change_state
#33 gst_element_set_state_func
#34 gst_element_set_state
#35 main
at gst-launch.c line 715
#36 __libc_start_main
from /lib/i686/cmov/libc.so.6
#37 _start


I'll see if I can get any other filetypes to test in the meantime. OGGs seem to work OK.

Comment 1 Alex Hixon 2008-03-31 10:58:55 UTC

(gdb) bt

+ Trace 193755

#0 gst_base_sink_pad_getcaps
at gstbasesink.c line 421
#1 gst_pad_get_caps_unlocked
at gstpad.c line 1977
#2 gst_pad_get_caps
at gstpad.c line 2061
#3 gst_proxy_pad_do_getcaps
at gstghostpad.c line 230
#4 gst_pad_get_caps_unlocked
at gstpad.c line 1977
#5 gst_pad_get_caps
at gstpad.c line 2061
#6 gst_pad_peer_get_caps
at gstpad.c line 2101
#7 gst_base_transform_getcaps
at gstbasetransform.c line 555
#8 gst_pad_get_caps_unlocked
at gstpad.c line 1977
#9 gst_pad_get_caps
at gstpad.c line 2061
#10 gst_pad_peer_get_caps
at gstpad.c line 2101
#11 gst_base_transform_getcaps
at gstbasetransform.c line 555
#12 gst_pad_get_caps_unlocked
at gstpad.c line 1977
#13 gst_pad_get_caps
at gstpad.c line 2061
#14 gst_pad_peer_get_caps
at gstpad.c line 2101
#15 gst_base_transform_getcaps
at gstbasetransform.c line 555
#16 gst_pad_get_caps_unlocked
at gstpad.c line 1977
#17 gst_pad_get_caps
at gstpad.c line 2061
#18 gst_proxy_pad_do_getcaps
at gstghostpad.c line 230
#19 gst_pad_get_caps_unlocked
at gstpad.c line 1977
#20 gst_pad_get_caps
at gstpad.c line 2061
#21 gst_pad_peer_get_caps
at gstpad.c line 2101
#22 intersect_caps_func
at gstutils.c line 2449
#23 gst_iterator_fold
at gstiterator.c line 503
#24 gst_pad_proxy_getcaps
at gstutils.c line 2497
#25 gst_pad_get_caps_unlocked
at gstpad.c line 1977

Comment 2 Wim Taymans 2008-04-01 14:06:48 UTC

please do in gdb:

thr apply all bt

to get a complete stacktrace of all threads.

Comment 3 Alex Hixon 2008-04-02 06:20:08 UTC

Appears to be due to the Bluez GStreamer element - removing libgstbluetooth.so from /usr/lib/gstreamer-0.10 seems to fix things.

Here's the requested stacktrace of all threads with the .so in place:

+ Trace 193973

Thread 2 (Thread 0xb77e2b90 (LWP 30341))

#0 strncpy
from /lib/i686/cmov/libc.so.6
#1 ??
from /usr/lib/gstreamer-0.10/libgstbluetooth.so
#2 ??
#3 ??


I can also provide the GST_DEBUG output if you need, though, I think this bug needs to get reassigned and/or description modified.

Thanks for looking into this.

Comment 4 Alex Hixon 2009-09-20 05:37:09 UTC

Closing, fixed in trunk.

Comment 5 Tim-Philipp Müller 2010-02-09 10:13:18 UTC

Fixed in bluez-gstreamer I presume?