[FFmpeg-trac] #3526(undetermined:new): Segfault when computing MD5
FFmpeg
trac at avcodec.org
Thu Apr 3 13:30:18 CEST 2014
#3526: Segfault when computing MD5
-------------------------------------+-------------------------------------
Reporter: | Type: defect
ahthovaikied | Priority: normal
Status: new | Version: git-
Component: | master
undetermined | Blocked By:
Keywords: crash | Reproduced by developer: 0
SIGSEGV |
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
I am getting a segfault when computing MD5, with a build from git master
(commit fd2bcfc4d6967588168443849b9bc365c78bb9af).
Sample file is available here :
http://www.auby.no/files/video_tests/h264_720p_hp_3.1_600kbps_aac_mp3_dual_audio_harry_potter.mkv
(4.3M)
{{{
$ gdb --args ./ffmpeg -i
h264_720p_hp_3.1_600kbps_aac_mp3_dual_audio_harry_potter.mkv -f md5 -GNU
gdb (Ubuntu 7.7-0ubuntu3) 7.7
Copyright (C) 2014 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.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./ffmpeg...(no debugging symbols found)...done.
(gdb) run
Starting program: /tmp/ffmpeg/ffmpeg -i
h264_720p_hp_3.1_600kbps_aac_mp3_dual_audio_harry_potter.mkv -f md5 -
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
ffmpeg version N-62058-gfd2bcfc Copyright (c) 2000-2014 the FFmpeg
developers
built on Apr 3 2014 13:21:04 with gcc 4.8 (Ubuntu 4.8.2-17ubuntu2)
configuration: --enable-gpl --enable-version3 --enable-nonfree
--disable-static --enable-shared --disable-runtime-cpudetect --disable-
ffserver --disable-encoder=vorbis --disable-encoder=aac --enable-x11grab
--enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-
libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-
libxvid --enable-debug --cpu=core-avx-i
WARNING: library configuration mismatch
avutil configuration: --enable-gpl --enable-version3 --enable-
nonfree --disable-static --enable-shared --disable-runtime-cpudetect
--disable-ffserver --disable-encoder=vorbis --disable-encoder=aac
--enable-x11grab --enable-libfdk-aac --enable-libmp3lame --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-
librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
libx264 --enable-libxvid --disable-debug --cpu=core-avx-i
avcodec configuration: --enable-gpl --enable-version3 --enable-
nonfree --disable-static --enable-shared --disable-runtime-cpudetect
--disable-ffserver --disable-encoder=vorbis --disable-encoder=aac
--enable-x11grab --enable-libfdk-aac --enable-libmp3lame --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-
librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
libx264 --enable-libxvid --disable-debug --cpu=core-avx-i
avformat configuration: --enable-gpl --enable-version3 --enable-
nonfree --disable-static --enable-shared --disable-runtime-cpudetect
--disable-ffserver --disable-encoder=vorbis --disable-encoder=aac
--enable-x11grab --enable-libfdk-aac --enable-libmp3lame --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-
librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
libx264 --enable-libxvid --disable-debug --cpu=core-avx-i
avdevice configuration: --enable-gpl --enable-version3 --enable-
nonfree --disable-static --enable-shared --disable-runtime-cpudetect
--disable-ffserver --disable-encoder=vorbis --disable-encoder=aac
--enable-x11grab --enable-libfdk-aac --enable-libmp3lame --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-
librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
libx264 --enable-libxvid --disable-debug --cpu=core-avx-i
avfilter configuration: --enable-gpl --enable-version3 --enable-
nonfree --disable-static --enable-shared --disable-runtime-cpudetect
--disable-ffserver --disable-encoder=vorbis --disable-encoder=aac
--enable-x11grab --enable-libfdk-aac --enable-libmp3lame --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-
librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
libx264 --enable-libxvid --disable-debug --cpu=core-avx-i
swscale configuration: --enable-gpl --enable-version3 --enable-
nonfree --disable-static --enable-shared --disable-runtime-cpudetect
--disable-ffserver --disable-encoder=vorbis --disable-encoder=aac
--enable-x11grab --enable-libfdk-aac --enable-libmp3lame --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-
librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
libx264 --enable-libxvid --disable-debug --cpu=core-avx-i
swresample configuration: --enable-gpl --enable-version3 --enable-
nonfree --disable-static --enable-shared --disable-runtime-cpudetect
--disable-ffserver --disable-encoder=vorbis --disable-encoder=aac
--enable-x11grab --enable-libfdk-aac --enable-libmp3lame --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-
librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
libx264 --enable-libxvid --disable-debug --cpu=core-avx-i
postproc configuration: --enable-gpl --enable-version3 --enable-
nonfree --disable-static --enable-shared --disable-runtime-cpudetect
--disable-ffserver --disable-encoder=vorbis --disable-encoder=aac
--enable-x11grab --enable-libfdk-aac --enable-libmp3lame --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-
librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
libx264 --enable-libxvid --disable-debug --cpu=core-avx-i
libavutil 52. 71.100 / 52. 66.100
libavcodec 55. 56.107 / 55. 52.102
libavformat 55. 36.101 / 55. 33.100
libavdevice 55. 11.100 / 55. 10.100
libavfilter 4. 3.100 / 4. 2.100
libswscale 2. 6.100 / 2. 5.102
libswresample 0. 18.100 / 0. 18.100
libpostproc 52. 3.100 / 52. 3.100
Input #0, matroska,webm, from
'h264_720p_hp_3.1_600kbps_aac_mp3_dual_audio_harry_potter.mkv':
Metadata:
title : Harry Potter 4[Eng-Hindi]Dual.Audio BRRIP
720p-=[champ_is_here]=-
encoder : libebml v1.0.0 + libmatroska v1.0.0
creation_time : 2011-01-07 07:42:53
Duration: 00:00:57.61, start: 0.000000, bitrate: 613 kb/s
Stream #0:0(eng): Video: h264 (High), yuv420p, 1280x528 [SAR 1:1 DAR
80:33], 25 fps, 25 tbr, 1k tbn, 47.95 tbc
Metadata:
title : -=[champ_is_here]=-
Stream #0:1(eng): Audio: aac, 48000 Hz, stereo, fltp
Metadata:
title : -=[champ_is_here]=-
Stream #0:2(hin): Audio: mp3, 48000 Hz, stereo, s16p, 160 kb/s
Metadata:
title : -=[champ_is_here]=-
[New Thread 0x7fffed725700 (LWP 6455)]
[New Thread 0x7fffecf24700 (LWP 6456)]
[New Thread 0x7fffec723700 (LWP 6457)]
[New Thread 0x7fffebf22700 (LWP 6458)]
[New Thread 0x7fffeb721700 (LWP 6459)]
[New Thread 0x7fffeaf20700 (LWP 6460)]
[New Thread 0x7fffea71f700 (LWP 6461)]
[New Thread 0x7fffe9f1e700 (LWP 6462)]
[New Thread 0x7fffe971d700 (LWP 6463)]
[New Thread 0x7fffe8f1c700 (LWP 6464)]
[New Thread 0x7fffe871b700 (LWP 6465)]
[New Thread 0x7fffe7f1a700 (LWP 6466)]
[New Thread 0x7fffe7719700 (LWP 6467)]
[New Thread 0x7fffe6f18700 (LWP 6468)]
[New Thread 0x7fffe6717700 (LWP 6469)]
Output #0, md5, to 'pipe:':
Metadata:
title : Harry Potter 4[Eng-Hindi]Dual.Audio BRRIP
720p-=[champ_is_here]=-
encoder : Lavf55.33.100
Stream #0:0(eng): Video: rawvideo (I420 / 0x30323449), yuv420p,
1280x528 [SAR 1:1 DAR 80:33], q=2-31, 200 kb/s, 90k tbn, 25 tbc
Metadata:
title : -=[champ_is_here]=-
Stream #0:1(eng): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
Metadata:
title : -=[champ_is_here]=-
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> rawvideo)
Stream #0:1 -> #0:1 (aac -> pcm_s16le)
Press [q] to stop, [?] for help
Program received signal SIGSEGV, Segmentation fault.
0x0000000000408b37 in ?? ()
(gdb) bt
#0 0x0000000000408b37 in ?? ()
#1 0x00007ffff4db2ec5 in __libc_start_main (main=0x406fd0, argc=6,
argv=0x7fffffffdf28, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>,
stack_end=0x7fffffffdf18) at libc-start.c:287
#2 0x0000000000409c31 in ?? ()
}}}
I have another PC with a build from the same source, but with different
CPU and compiler that works fine. See bug
https://trac.ffmpeg.org/ticket/3524 for context.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3526>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list