#10881: VAAPI decoding on AMD GPU may cause cpu soft lockup
-------------------------------------+-------------------------------------
Reporter: | Type: defect
sunboe...@gmail.com |
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: VAAPI amd | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
Our software uses FFmpeg for hardware decoding. One user encountered a CPU
stuck issue while using it and found that the same problem occurs when
using FFmpeg command line directly.
Here is the link of the related issue:
[https://github.com/rustdesk/rustdesk/issues/6906#issuecomment-1897921793]
How to reproduce:
{{{
% ffmpeg -hwaccel vaapi -i 1920_1080.264 -vf 'format=nv12' -c:v rawvideo
-pix_fmt nv12 output.yuv
ffmpeg version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2000-2021 the FFmpeg
developers
built with gcc 11 (Ubuntu 11.2.0-19ubuntu1)
}}}
Logs:
{{{
DRI_PRIME=1 ffmpeg -hwaccel vaapi -i 1920_1080.264 -vf 'format=nv12' -c:v
rawvideo -pix_fmt nv12 output.yuv
ffmpeg version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2000-2021 the FFmpeg
developers
built with gcc 11 (Ubuntu 11.2.0-19ubuntu1)
configuration: --prefix=/usr --extra-version=0ubuntu0.22.04.1
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
--incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl
--disable-stripping --enable-gnutls --enable-ladspa --enable-libaom
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
--enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite
--enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-
libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-
libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus
--enable-libpulse --enable-librabbitmq --enable-librubberband --enable-
libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-
libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-
libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-
libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq
--enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl
--enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-librsvg
--enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883
--enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
libavutil 56. 70.100 / 56. 70.100
libavcodec 58.134.100 / 58.134.100
libavformat 58. 76.100 / 58. 76.100
libavdevice 58. 13.100 / 58. 13.100
libavfilter 7.110.100 / 7.110.100
libswscale 5. 9.100 / 5. 9.100
libswresample 3. 9.100 / 3. 9.100
libpostproc 55. 9.100 / 55. 9.100
[h264 @ 0x563618de36c0] decoding for stream 0 failed
Input #0, h264, from '1920_1080.264':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: h264 (Main), yuv420p(tv, progressive), 1920x1080
[SAR 1:1 DAR 16:9], 60 tbr, 1200k tbn, 120 tbc
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
Press [q] to stop, [?] for help
radeon: The kernel rejected CS, see dmesg for more information (-22).
radeon: The kernel rejected CS, see dmesg for more information (-2).
Output #0, rawvideo, to 'output.yuv':
Metadata:
encoder : Lavf58.76.100
Stream #0:0: Video: rawvideo (NV12 / 0x3231564E), nv12(tv, progressive),
1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 1492992 kb/s, 60 fps, 60 tbn
Metadata:
encoder : Lavc58.134.100 rawvideo
frame= 1 fps=0.0 q=-0.0 Lsize= 3038kB time=00:00:00.01
bitrate=1492962.1kbits/s speed=0.291x
video:3038kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.000000%
----> CPU Lockup here
}}}
Please refer to the provided link for more information, including 'vainfo'
and other details
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10881>
FFmpeg <https://ffmpeg.org>
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