Bug#627818: Info received (Bug#627818: ffmpeg segmentation fault __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119)
Il 25/06/2011 08:19, Reinhard Tartler ha scritto: Well, as you wish, but I am still curious: - what has fixed the symptoms During last night upgrade, I came across the upgrade infos Andres was talking about http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627818#25 So, I got libc upgraded to 2.13-7 http://packages.qa.debian.org/e/eglibc/news/20110623T163908Z.html Then I tried converting another video with ffmpeg, and it works... - does glibc really have issues with non-aligned src/destination memcpy/memmove() calls? - does Libav 0.6 use overlapping memcpys? - does Libav 0.7? (as currently found in experimental) Could you help me answering your questions? Thanks Marco ___ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-multimedia-maintainers
Bug#627818: ffmpeg segmentation fault __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119
On Tue, May 24, 2011 at 20:35:14 (CEST), Marco Mattiolo wrote: Package: ffmpeg Version: 4:0.6.2-3 Severity: normal Hi. I'm having a problem with ffmpeg, converting flv downloaded by youtube-dl to audio-only ogg vorbis. I had debian-multimedia repo enabled, so I purged all packages related to that repo, before generating this bugreport. Hope this really helps getting a better ffmpeg. Also hope not to waste your time. Can you please try the ffmpeg package from experimental (0.7) as well? In any case, please share the .flv file, we really need to be able to reproduce ourselves. -- Gruesse/greetings, Reinhard Tartler, KeyID 945348A4 ___ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-multimedia-maintainers
Bug#627818: ffmpeg segmentation fault __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119
On Wed, May 25, 2011 at 4:51 PM, Marco Mattiolo marco.matti...@hotmail.it wrote: Il 25/05/2011 08:47, Reinhard Tartler ha scritto: Can you please try the ffmpeg package from experimental (0.7) as well? In any case, please share the .flv file, we really need to be able to reproduce ourselves. Ok: ffmpeg from experimental works. The problem isn't video-specific, today I tried plenty of videos downloaded with youtube-dl, and all weren't able to convert into vorbis using ffmpeg. So I looked for a tiny video to attach, you can also get typing youtube-dl http://www.youtube.com/watch?v=ELiKge89VAw;. Il 25/05/2011 01:29, Romain Beauxis ha scritto: Hi all, I ran into a similar bug in the recent past that was due to frame memory not being aligned. Memory alignment is required to use SSE optimisations. Maybe that is the issue here too? I don't know: how could I check it? Thank you Marco ___ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-multimedia-maintainers Note the following news of a recent upload of eglibc. eglibc (2.13-3) unstable; urgency=low Starting with version 2.13, eglibc provides an SSSE3 optimized version of memcpy() on the amd64 architecture. This version might copy memory backward in some conditions, which causes issues if the source and destination overlap. memmove() should be used in such cases, but some programs still wrongly use memcpy(). For this reason, on the amd64 architecture the Debian package provides two wrappers which can be use to workaround and/or debug the issue: - /usr/lib/libc/memcpy-preload.so simply replace all calls to memcpy() by a call to memmove() - /usr/lib/libc/memcpy-syslog-preload.so does the same, but in addition logs (with rate limit) the issue to syslog, so that it can be detected and fixed. To use these wrapper on a single binary, the easiest way is to use the LD_PRELOAD environment variable: - LD_PRELOAD=/usr/lib/libc/memcpy-preload.so /path/to/binary - LD_PRELOAD=/usr/lib/libc/memcpy-syslog-preload.so /path/to/binary For system-wide usage, it is possible to add the path of one of the wrapper to /etc/ld.so.preload. For more details about the issue, please see: http://bugs.debian.org/625521 http://sourceware.org/bugzilla/show_bug.cgi?id=12518 -- Aurelien Jarno aure...@debian.org Wed, 11 May 2011 22:15:31 +0200 -- Regards, Andres Mejia ___ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-multimedia-maintainers
Bug#627818: ffmpeg segmentation fault __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119
Package: ffmpeg Version: 4:0.6.2-3 Severity: normal Hi. I'm having a problem with ffmpeg, converting flv downloaded by youtube-dl to audio-only ogg vorbis. I had debian-multimedia repo enabled, so I purged all packages related to that repo, before generating this bugreport. Hope this really helps getting a better ffmpeg. Also hope not to waste your time. Thank you $ gdb ffmpeg GNU gdb (GDB) 7.2-debian Copyright (C) 2010 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. For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/... Reading symbols from /usr/bin/ffmpeg...Reading symbols from /usr/lib/debug/usr/bin/ffmpeg...done. done. (gdb) set pagination 0 (gdb) run -i XBHzFb0toqc.flv -f ogg -acodec libvorbis -vn KT tunstall - Suddenly I see.ogg Starting program: /usr/bin/ffmpeg -i XBHzFb0toqc.flv -f ogg -acodec libvorbis -vn KT tunstall - Suddenly I see.ogg [Thread debugging using libthread_db enabled] FFmpeg version 0.6.2-4:0.6.2-3, Copyright (c) 2000-2010 the Libav developers built on Apr 30 2011 11:45:41 with gcc 4.5.2 configuration: --extra-version=4:0.6.2-3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libfaad --enable-libdirac --enable-libfaad --enable-librtmp --enable-libdc1394 --enable-shared --disable-static libavutil 50.15. 1 / 50.15. 1 libavcodec52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter1.19. 0 / 1.19. 0 libswscale 0.11. 0 / 0.11. 0 libpostproc 51. 2. 0 / 51. 2. 0 [flv @ 0x64b6b0]Estimating duration from bitrate, this may be inaccurate Input #0, flv, from 'XBHzFb0toqc.flv': Metadata: duration: 197 starttime : 0 totalduration : 197 width : 320 height : 240 videodatarate : 81 audiodatarate : 103 totaldatarate : 192 framerate : 25 bytelength : 4731985 canseekontime : true sourcedata : BD075E384HH1306095687603251 purl: pmsg: Duration: 00:03:16.60, start: 0.00, bitrate: 188 kb/s Stream #0.0: Video: h264, yuv420p, 320x240 [PAR 1:1 DAR 4:3], 82 kb/s, 25 tbr, 1k tbn, 50 tbc Stream #0.1: Audio: aac, 44100 Hz, stereo, s16, 105 kb/s File 'KT tunstall - Suddenly I see.ogg' already exists. Overwrite ? [y/N] y Output #0, ogg, to 'KT tunstall - Suddenly I see.ogg': Metadata: encoder : Lavf52.64.2 Stream #0.0: Audio: libvorbis, 44100 Hz, stereo, s16, 64 kb/s Stream mapping: Stream #0.1 - #0.0 Press [q] to stop encoding Program received signal SIGSEGV, Segmentation fault. __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119 119 ../sysdeps/x86_64/multiarch/memcpy-ssse3.S: File o directory non esistente. in ../sysdeps/x86_64/multiarch/memcpy-ssse3.S (gdb) bt #0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119 #1 0x76d01563 in oggvorbis_encode_frame (avccontext=value optimized out, packets=0x7edd40 v'\375\347Y\276\204, buf_size=value optimized out, data=value optimized out) at /build/buildd-libav_0.6.2-3-amd64-jtanW8/libav-0.6.2/libavcodec/libvorbis.c:191 #2 0x76e29207 in avcodec_encode_audio (avctx=0x64ed40, buf=value optimized out, buf_size=value optimized out, samples=value optimized out) at /build/buildd-libav_0.6.2-3-amd64-jtanW8/libav-0.6.2/libavcodec/utils.c:544 #3 0x004096ce in do_audio_out (ist=value optimized out, ist_index=1, ost_table=0x64f360, nb_ostreams=1, pkt=value optimized out) at /build/buildd-libav_0.6.2-3-amd64-jtanW8/libav-0.6.2/ffmpeg.c:788 #4 output_packet (ist=value optimized out, ist_index=1, ost_table=0x64f360, nb_ostreams=1, pkt=value optimized out) at /build/buildd-libav_0.6.2-3-amd64-jtanW8/libav-0.6.2/ffmpeg.c:1518 #5 0x0040cc76 in av_transcode (nb_output_files=1, nb_input_files=1, nb_stream_maps=-10048, stream_maps=0x617a80, input_files=0x617760, output_files=0x617440) at /build/buildd-libav_0.6.2-3-amd64-jtanW8/libav-0.6.2/ffmpeg.c:2409 #6 0x0040ee05 in main (argc=value optimized out, argv=value optimized out) at /build/buildd-libav_0.6.2-3-amd64-jtanW8/libav-0.6.2/ffmpeg.c:4163 (gdb) quit -- System Information: Debian Release: wheezy/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 2.6.38-2-amd64 (SMP
Bug#627818: ffmpeg segmentation fault __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119
Hi all, 2011/5/24 Marco Mattiolo marco.matti...@hotmail.it: Hi. I'm having a problem with ffmpeg, converting flv downloaded by youtube-dl to audio-only ogg vorbis. I had debian-multimedia repo enabled, so I purged all packages related to that repo, before generating this bugreport. Hope this really helps getting a better ffmpeg. Also hope not to waste your time. Thank you $ gdb ffmpeg GNU gdb (GDB) 7.2-debian Copyright (C) 2010 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. For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/... Reading symbols from /usr/bin/ffmpeg...Reading symbols from /usr/lib/debug/usr/bin/ffmpeg...done. done. (gdb) set pagination 0 (gdb) run -i XBHzFb0toqc.flv -f ogg -acodec libvorbis -vn KT tunstall - Suddenly I see.ogg Starting program: /usr/bin/ffmpeg -i XBHzFb0toqc.flv -f ogg -acodec libvorbis -vn KT tunstall - Suddenly I see.ogg [Thread debugging using libthread_db enabled] FFmpeg version 0.6.2-4:0.6.2-3, Copyright (c) 2000-2010 the Libav developers built on Apr 30 2011 11:45:41 with gcc 4.5.2 configuration: --extra-version=4:0.6.2-3 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-libopenjpeg --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libfaad --enable-libdirac --enable-libfaad --enable-librtmp --enable-libdc1394 --enable-shared --disable-static libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.19. 0 / 1.19. 0 libswscale 0.11. 0 / 0.11. 0 libpostproc 51. 2. 0 / 51. 2. 0 [flv @ 0x64b6b0]Estimating duration from bitrate, this may be inaccurate Input #0, flv, from 'XBHzFb0toqc.flv': Metadata: duration : 197 starttime : 0 totalduration : 197 width : 320 height : 240 videodatarate : 81 audiodatarate : 103 totaldatarate : 192 framerate : 25 bytelength : 4731985 canseekontime : true sourcedata : BD075E384HH1306095687603251 purl : pmsg : Duration: 00:03:16.60, start: 0.00, bitrate: 188 kb/s Stream #0.0: Video: h264, yuv420p, 320x240 [PAR 1:1 DAR 4:3], 82 kb/s, 25 tbr, 1k tbn, 50 tbc Stream #0.1: Audio: aac, 44100 Hz, stereo, s16, 105 kb/s File 'KT tunstall - Suddenly I see.ogg' already exists. Overwrite ? [y/N] y Output #0, ogg, to 'KT tunstall - Suddenly I see.ogg': Metadata: encoder : Lavf52.64.2 Stream #0.0: Audio: libvorbis, 44100 Hz, stereo, s16, 64 kb/s Stream mapping: Stream #0.1 - #0.0 Press [q] to stop encoding Program received signal SIGSEGV, Segmentation fault. __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:119 119 ../sysdeps/x86_64/multiarch/memcpy-ssse3.S: File o directory non esistente. in ../sysdeps/x86_64/multiarch/memcpy-ssse3.S I ran into a similar bug in the recent past that was due to frame memory not being aligned. Memory alignment is required to use SSE optimisations. Maybe that is the issue here too? Romain ___ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-multimedia-maintainers
