[Bug 771092] [avenc] Got Caught SIGSEGV when using avenc_xxx

Mon Sep 12 09:02:57 UTC 2016

https://bugzilla.gnome.org/show_bug.cgi?id=771092

--- Comment #4 from Lyon <lyon.wang at nxp.com> ---
root at imx6qdlsolo:~# gdb gst-launch-1.0 3286
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Reading symbols from gst-launch-1.0...done.
Attaching to program: /usr/bin/gst-launch-1.0, process 3286
Reading symbols from /usr/lib/libgstreamer-1.0.so.0...done.
Reading symbols from /usr/lib/libgobject-2.0.so.0...done.
Reading symbols from /usr/lib/libglib-2.0.so.0...done.
Reading symbols from /lib/libpthread.so.0...Reading symbols from
/lib/.debug/libpthread-2.23.so...done.
done.
[New LWP 3289]
[New LWP 3288]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/libthread_db.so.1".
Reading symbols from /lib/libc.so.6...Reading symbols from
/lib/.debug/libc-2.23.so...done.
done.
Reading symbols from /usr/lib/libffi.so.6...(no debugging symbols
found)...done.
Reading symbols from /usr/lib/libgmodule-2.0.so.0...done.
Reading symbols from /usr/lib/libpcre.so.1...(no debugging symbols
found)...done.
Reading symbols from /lib/libm.so.6...Reading symbols from
/lib/.debug/libm-2.23.so...done.
done.
Reading symbols from /lib/librt.so.1...Reading symbols from
/lib/.debug/librt-2.23.so...done.
done.
Reading symbols from /lib/libdl.so.2...Reading symbols from
/lib/.debug/libdl-2.23.so...done.
done.
Reading symbols from /lib/ld-linux-armhf.so.3...Reading symbols from
/lib/.debug/ld-2.23.so...done.
done.
Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols found)...done.
Reading symbols from /usr/lib/gstreamer-1.0/libgstvideotestsrc.so...(no
debugging symbols found)...done.
Reading symbols from /usr/lib/libgstvideo-1.0.so.0...(no debugging symbols
found)...done.
Reading symbols from /usr/lib/libgstbase-1.0.so.0...done.
Reading symbols from /usr/lib/liborc-0.4.so.0...(no debugging symbols
found)...done.
Reading symbols from /usr/lib/gstreamer-1.0/libgstlibav.so...(no debugging
symbols found)...done.
Reading symbols from /usr/lib/libgstpbutils-1.0.so.0...(no debugging symbols
found)...done.
Reading symbols from /usr/lib/libgstaudio-1.0.so.0...(no debugging symbols
found)...done.
Reading symbols from /usr/lib/libgsttag-1.0.so.0...(no debugging symbols
found)...done.
Reading symbols from /lib/libz.so.1...(no debugging symbols found)...done.
Reading symbols from /usr/lib/libbz2.so.1...(no debugging symbols
found)...done.
Reading symbols from /usr/lib/liblzma.so.5...(no debugging symbols
found)...done.
Reading symbols from /usr/lib/gstreamer-1.0/libgstcoreelements.so...done.
0x76bbe1a4 in poll () at ../sysdeps/unix/syscall-template.S:84
84    T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
(gdb) thread apply all backtrace

Thread 3 (Thread 0x753cc470 (LWP 3288)):
#0  0x76c43d84 in nanosleep () at ../sysdeps/unix/syscall-template.S:84
#1  0x76cccff8 in g_usleep (microseconds=<optimized out>) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/gtimer.c:259
#2  0x00013518 in fault_handler_sighandler () at
/usr/src/debug/gstreamer1.0/1.8.1-r0/gstreamer-1.8.1/tools/gst-launch.c:112
#3  0x00013518 in fault_handler_sighandler (signum=<optimized out>) at
/usr/src/debug/gstreamer1.0/1.8.1-r0/gstreamer-1.8.1/tools/gst-launch.c:93
#4  0x76b25b30 in <signal handler called> () at
../sysdeps/unix/sysv/linux/arm/sigrestorer.S
#5  0x76c923c8 in g_str_hash (v=0x493e0) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/ghash.c:1875
#6  0x76c916f4 in g_hash_table_lookup (hash_return=<synthetic pointer>,
key=0x493e0, hash_table=0xc4e278 = {...}) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/ghash.c:375
#7  0x76c916f4 in g_hash_table_lookup (hash_table=0xc4e278 = {...},
key=key at entry=0x493e0) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/ghash.c:1147
#8  0x76e53fec in gst_tag_lookup (tag_name=tag_name at entry=0x493e0 <error:
Cannot access memory at address 0x493e0>) at
/usr/src/debug/gstreamer1.0/1.8.1-r0/gstreamer-1.8.1/gst/gsttaglist.c:466
#9  0x76e57384 in gst_tag_list_add_valist (list=list at entry=0xdaa8c0,
mode=mode at entry=GST_TAG_MERGE_REPLACE, tag=0x493e0 <error: Cannot access memory
at address 0x493e0>, tag at entry=0x0, var_args=..., var_args at entry=...)
    at
/usr/src/debug/gstreamer1.0/1.8.1-r0/gstreamer-1.8.1/gst/gsttaglist.c:1287
#10 0x76e577b4 in gst_tag_list_add (list=0xdaa8c0, mode=GST_TAG_MERGE_REPLACE,
tag=0x75eb5c6c "nominal-bitrate") at
/usr/src/debug/gstreamer1.0/1.8.1-r0/gstreamer-1.8.1/gst/gsttaglist.c:1230
#11 0x7561b48c in  () at /usr/lib/gstreamer-1.0/libgstlibav.so

Thread 2 (Thread 0x749ff470 (LWP 3289)):
#0  0x76bbe1a4 in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x76ca3cb4 in g_main_context_iterate (priority=<optimized out>, n_fds=1,
fds=0x74000470, timeout=<optimized out>, context=0xdde718) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/gmain.c:4135
#2  0x76ca3cb4 in g_main_context_iterate (context=context at entry=0xdde718,
block=block at entry=1, dispatch=dispatch at entry=1, self=<optimized out>) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/gmain.c:3835
#3  0x76ca3dc0 in g_main_context_iteration (context=0xdde718,
may_block=may_block at entry=1) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/gmain.c:3901
#4  0x76ca3dfc in glib_worker_main (data=<optimized out>) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/gmain.c:5672
#5  0x76ccb544 in g_thread_proxy (data=0xdaa7b0) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/gthread.c:778
#6  0x76c38f00 in start_thread (arg=0x749ff470) at
/usr/src/debug/glibc/2.23-r0/git/nptl/pthread_create.c:335
#7  0x76bc7520 in  () at ../sysdeps/unix/sysv/linux/arm/clone.S:89

Thread 1 (Thread 0x76f083b0 (LWP 3286)):
#0  0x76bbe1a4 in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x76ca3cb4 in g_main_context_iterate (priority=<optimized out>, n_fds=2,
fds=0xddc3a0, timeout=<optimized out>, context=0xddce18) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/gmain.c:4135
#2  0x76ca3cb4 in g_main_context_iterate (context=0xddce18,
block=block at entry=1, dispatch=dispatch at entry=1, self=<optimized out>) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/gmain.c:3835
#3  0x76ca4070 in g_main_loop_run (loop=0xddcf30) at
/usr/src/debug/glib-2.0/1_2.46.2-r0/glib-2.46.2/glib/gmain.c:4034
#4  0x76de9fbc in gst_bus_poll (bus=bus at entry=0xd88428 [GstBus],
events=events at entry=GST_MESSAGE_ANY, timeout=<optimized out>) at
/usr/src/debug/gstreamer1.0/1.8.1-r0/gstreamer-1.8.1/gst/gstbus.c:1157
#5  0x00013da4 in event_loop (pipeline=0xddd0d0 [GstPipeline],
blocking=blocking at entry=1, do_progress=1995493376, do_progress at entry=1,
target_state=GST_STATE_VOID_PENDING, target_state at entry=GST_STATE_PAUSED)
    at
/usr/src/debug/gstreamer1.0/1.8.1-r0/gstreamer-1.8.1/tools/gst-launch.c:532
#6  0x00012edc in main (argc=2123172340, argv=0x76f0bbe0) at
/usr/src/debug/gstreamer1.0/1.8.1-r0/gstreamer-1.8.1/tools/gst-launch.c:1074
(gdb)

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