[Bug 699518] Segfault inside either GStreamer or gst-plugins-base.

Mon Jul 21 13:56:52 PDT 2014

https://bugzilla.gnome.org/show_bug.cgi?id=699518
  GStreamer | gstreamer (core) | git

--- Comment #15 from Stirling Westrup <swestrup at gmail.com> 2014-07-21 20:56:48 UTC ---
$ gdb --args gst-launch-1.0 --gst-fatal-warnings videotestsrc pattern=black !
video/x-raw,width=1920,height=1080 ! clockoverlay valignment=top
halignment=left font-desc="Sans 8" time-format="%T %T %T %T %T %T %T %T %T %T
%T %T %T %T %T %T %T %T %T %T %T %T %T" ! videocrop right=540 bottom=540 !
xvimagesink display=:1.3
GNU gdb (GDB) 7.6.2 (Debian 7.6.2-1.1+b1)
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
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This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/local/bin/gst-launch-1.0...done.
(gdb) r
Starting program: /usr/local/bin/gst-launch-1.0 --gst-fatal-warnings
videotestsrc pattern=black \! video/x-raw,width=1920,height=1080 \!
clockoverlay valignment=top halignment=left font-desc=Sans\ 8 time-format=%T\
%T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\ %T\
%T\ %T \! videocrop right=540 bottom=540 \! xvimagesink display=:1.3
warning: no loadable sections found in added symbol-file system-supplied DSO at
0x7ffff7ffa000
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Setting pipeline to PAUSED ...
[New Thread 0x7fffef41f700 (LWP 20841)]
[New Thread 0x7fffeec1e700 (LWP 20842)]
Pipeline is PREROLLING ...
[New Thread 0x7fffee41d700 (LWP 20843)]
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock

(gst-launch-1.0:20837): GStreamer-CRITICAL **: gst_mini_object_lock: assertion
'GST_MINI_OBJECT_IS_LOCKABLE (object)' failed

Program received signal SIGTRAP, Trace/breakpoint trap.
[Switching to Thread 0x7fffeec1e700 (LWP 20842)]
g_logv (log_domain=0x7ffff7b81a93 <g_log_domain_gstreamer> "GStreamer",
log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>,
args=args at entry=0x7fffeec1d1d8)
    at /tmp/buildd/glib2.0-2.40.0/./glib/gmessages.c:1038
1038    /tmp/buildd/glib2.0-2.40.0/./glib/gmessages.c: No such file or
directory.
(gdb) bt
#0  g_logv (log_domain=0x7ffff7b81a93 <g_log_domain_gstreamer> "GStreamer",
log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>,
args=args at entry=0x7fffeec1d1d8)
    at /tmp/buildd/glib2.0-2.40.0/./glib/gmessages.c:1038
#1  0x00007ffff73bed72 in g_log (log_domain=<optimized out>,
log_level=log_level at entry=G_LOG_LEVEL_CRITICAL,
format=format at entry=0x7ffff7406742 "%s: assertion '%s' failed")
    at /tmp/buildd/glib2.0-2.40.0/./glib/gmessages.c:1071
#2  0x00007ffff73bed99 in g_return_if_fail_warning (log_domain=<optimized out>,
pretty_function=pretty_function at entry=0x7ffff7b912b0 <__func__.17637>
"gst_mini_object_lock", 
    expression=expression at entry=0x7ffff7b90ea8 "GST_MINI_OBJECT_IS_LOCKABLE
(object)") at /tmp/buildd/glib2.0-2.40.0/./glib/gmessages.c:1080
#3  0x00007ffff7b2d9da in gst_mini_object_lock (object=0x7fffed791010,
flags=<optimized out>) at gstminiobject.c:177
#4  0x00007ffff7b2d17c in gst_memory_map (mem=0x7fffed791010,
info=0x7fffeec1d628, flags=GST_MAP_READ) at gstmemory.c:292
#5  0x00007ffff7b2d4a9 in gst_memory_make_mapped (mem=0x7fffed791010,
info=0x7fffeec1d628, flags=GST_MAP_READ) at gstmemory.c:236
#6  0x00007ffff7b03816 in gst_buffer_map_range (buffer=0x817800, idx=0,
length=1, info=0x7fffeec1d628, flags=GST_MAP_READ) at gstbuffer.c:1560
#7  0x00007ffff6004b99 in default_map (meta=0x8005d8, plane=<optimized out>,
info=0x7fffeec1d628, data=0x7fffeec1d608, stride=0x7fffeec1d5b8,
flags=GST_MAP_READ) at gstvideometa.c:144
#8  0x00007ffff60012cf in gst_video_frame_map_id (frame=0x7fffe0000020,
info=0x800608, buffer=0x0, id=0, flags=(unknown: 0)) at video-frame.c:83
#9  0x00007ffff60177c1 in gst_video_overlay_composition_blend
(comp=0x7fffe0026c60, video_buf=0x7fffeec1d860) at
video-overlay-composition.c:489
#10 0x00007ffff56f9a6d in gst_base_text_overlay_push_frame (overlay=0x7fe030,
video_frame=0x8176f0) at gstbasetextoverlay.c:1890
#11 0x00007ffff56fbe90 in gst_base_text_overlay_video_chain (pad=0x7dc300,
parent=0x7fe030, buffer=0x0) at gstbasetextoverlay.c:2366
#12 0x00007ffff7b3210e in gst_pad_chain_data_unchecked (data=<optimized out>,
type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#13 gst_pad_push_data (pad=0x7dd020, type=4117736640, data=0x8176f0) at
gstpad.c:4069
#14 0x00007ffff5dc23e5 in gst_base_transform_chain (pad=0x7fffe0000020,
parent=0x8100d0, buffer=0x0) at gstbasetransform.c:2260
#15 0x00007ffff7b3210e in gst_pad_chain_data_unchecked (data=<optimized out>,
type=<optimized out>, pad=<optimized out>) at gstpad.c:3836
#16 gst_pad_push_data (pad=0x7dc0d0, type=4124844480, data=0x8176f0) at
gstpad.c:4069
#17 0x00007ffff5dba045 in gst_base_src_loop (pad=0x7dc0d0) at gstbasesrc.c:2835
#18 0x00007ffff7b5f477 in gst_task_func (task=0x82d050) at gsttask.c:317
#19 0x00007ffff73dd89c in g_thread_pool_thread_proxy (data=<optimized out>) at
/tmp/buildd/glib2.0-2.40.0/./glib/gthreadpool.c:307
#20 0x00007ffff73dcf15 in g_thread_proxy (data=0x812000) at
/tmp/buildd/glib2.0-2.40.0/./glib/gthread.c:764
#21 0x00007ffff6f560a4 in start_thread (arg=0x7fffeec1e700) at
pthread_create.c:309
#22 0x00007ffff6c8b04d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
(gdb)

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