Bug 310528 – playbin deadlocks when switching text subtitle stream

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Bug 310528 - playbin deadlocks when switching text subtitle stream


Summary:	playbin deadlocks when switching text subtitle stream


Status:	RESOLVED OBSOLETE

Product:	GStreamer
Classification:	Platform
Component:	gst-plugins
Version:	0.8.10
Hardware:	Other Linux

Importance:	Normal normal
Target Milestone:	NONE
Assigned To:	GStreamer Maintainers
QA Contact:	GStreamer Maintainers

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2005-07-15 19:12 UTC by Arwed v. Merkatz
Modified:	2006-01-12 19:21 UTC

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

Description Arwed v. Merkatz 2005-07-15 19:12:41 UTC

Switching subtitle stream for matroska or ogm files (text subtitles) in playbin
leads to a deadlock. Reproducable with my own app and totem.

Backtrace:
Thread 10053:

+ Trace 61774

#0 ??
#1 ??
#2 ??
#3 ??
#4 poll
from /lib/libc.so.6
#5 g_main_context_iterate
from /usr/lib/libglib-2.0.so.0
#6 g_main_loop_run
from /usr/lib/libglib-2.0.so.0
#7 gtk_main
from /usr/lib/libgtk-x11-2.0.so.0
#8 main
at main.c line 198
#0 ??
#1 ??
#2 ??
#3 ??
#4 pthread_cond_wait
from /lib/libpthread.so.0
#5 gst_queue_chain
at gstqueue.c line 727
#6 gst_pad_call_chain_function
at gstpad.c line 4539
#7 gst_pad_push
at gstpad.c line 3335
#8 gst_stream_selector_chain
at gststreamselector.c line 290
#9 gst_pad_call_chain_function
at gstpad.c line 4539
#10 gst_pad_push
at gstpad.c line 3335
#11 gst_ffmpegdec_frame
at gstffmpegdec.c line 828
#12 gst_ffmpegdec_chain
at gstffmpegdec.c line 983
#13 gst_pad_call_chain_function
at gstpad.c line 4539
#14 gst_pad_push
at gstpad.c line 3335
#15 gst_matroska_demux_parse_cluster
at matroska-demux.c line 2144
#16 gst_matroska_demux_loop
at matroska-demux.c line 2505
#17 loop_group_schedule_function
at gstoptimalscheduler.c line 1451
#18 gst_opt_scheduler_schedule_run_queue
at gstoptimalscheduler.c line 1222
#19 gst_opt_scheduler_iterate
at gstoptimalscheduler.c line 1331
#20 gst_scheduler_iterate
at gstscheduler.c line 744
#21 gst_bin_iterate_func
at gstbin.c line 1281
#22 gst_marshal_BOOLEAN__VOID
at gstmarshal.c line 509
#23 g_type_class_meta_marshal
from /usr/lib/libgobject-2.0.so.0
#24 g_closure_invoke
from /usr/lib/libgobject-2.0.so.0
#25 signal_emit_unlocked_R
from /usr/lib/libgobject-2.0.so.0
#26 g_signal_emit_valist
from /usr/lib/libgobject-2.0.so.0
#27 g_signal_emit
from /usr/lib/libgobject-2.0.so.0
#28 gst_bin_iterate
at gstbin.c line 1341
#29 gst_thread_main_loop
at gstthread.c line 675
#30 g_thread_create_proxy
from /usr/lib/libglib-2.0.so.0
#31 __pthread_initialize_minimal
from /lib/libpthread.so.0
#32 clone
from /lib/libc.so.6
#0 ??
#1 ??
#2 ??
#3 ??
#4 pthread_cond_wait
from /lib/libpthread.so.0
#5 gst_queue_get
at gstqueue.c line 861
#6 gst_pad_call_get_function
at gstpad.c line 4562
#7 get_group_schedule_function
at gstoptimalscheduler.c line 1409
#8 gst_opt_scheduler_schedule_run_queue
at gstoptimalscheduler.c line 1222
#9 gst_opt_scheduler_iterate
at gstoptimalscheduler.c line 1331
#10 gst_scheduler_iterate
at gstscheduler.c line 744
#11 gst_bin_iterate_func
at gstbin.c line 1281
#12 gst_marshal_BOOLEAN__VOID
at gstmarshal.c line 509
#13 g_type_class_meta_marshal
from /usr/lib/libgobject-2.0.so.0
#14 g_closure_invoke
from /usr/lib/libgobject-2.0.so.0
#15 signal_emit_unlocked_R
from /usr/lib/libgobject-2.0.so.0
#16 g_signal_emit_valist
from /usr/lib/libgobject-2.0.so.0
#17 g_signal_emit
from /usr/lib/libgobject-2.0.so.0
#18 gst_bin_iterate
at gstbin.c line 1341
#19 gst_thread_main_loop
at gstthread.c line 675
#20 g_thread_create_proxy
from /usr/lib/libglib-2.0.so.0
#21 __pthread_initialize_minimal
from /lib/libpthread.so.0
#22 clone
from /lib/libc.so.6
#0 ??
#1 ??
#2 ??
#3 ??
#4 pthread_cond_wait
from /lib/libpthread.so.0
#5 gst_queue_get
at gstqueue.c line 861
#6 gst_pad_call_get_function
at gstpad.c line 4562
#7 get_group_schedule_function
at gstoptimalscheduler.c line 1409
#8 gst_opt_scheduler_schedule_run_queue
at gstoptimalscheduler.c line 1222
#9 gst_opt_scheduler_get_wrapper
at gstoptimalscheduler.c line 1575
#10 gst_pad_pull
at gstpad.c line 3393
#11 gst_image_mixer_blend_subpicture
at mixer.c line 640
#12 gst_image_mixer_loop
at mixer.c line 906
#13 loop_group_schedule_function
at gstoptimalscheduler.c line 1451
#14 gst_opt_scheduler_schedule_run_queue
at gstoptimalscheduler.c line 1222
#15 gst_opt_scheduler_iterate
at gstoptimalscheduler.c line 1331
#16 gst_scheduler_iterate
at gstscheduler.c line 744
#17 gst_bin_iterate_func
at gstbin.c line 1281
#18 gst_marshal_BOOLEAN__VOID
at gstmarshal.c line 509
#19 g_type_class_meta_marshal
from /usr/lib/libgobject-2.0.so.0
#20 g_closure_invoke
from /usr/lib/libgobject-2.0.so.0
#21 signal_emit_unlocked_R
from /usr/lib/libgobject-2.0.so.0
#22 g_signal_emit_valist
from /usr/lib/libgobject-2.0.so.0
#23 g_signal_emit
from /usr/lib/libgobject-2.0.so.0
#24 gst_bin_iterate
at gstbin.c line 1341
#25 gst_thread_main_loop
at gstthread.c line 675
#26 g_thread_create_proxy
from /usr/lib/libglib-2.0.so.0
#27 __pthread_initialize_minimal
from /lib/libpthread.so.0
#28 clone
from /lib/libc.so.6

Comment 1 Andy Wingo 2006-01-12 19:21:13 UTC

I'm going to go out on a limb here and claim this is unfixable. Deep dark threading and scheduling errors on 0.8 are not being looked at by anyone. Try with 0.10 and file new bugs :)