[Nouveau] [Bug 109742] New: vdpau state tracker on nv92 started to hit assert after vl compute work

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109742

            Bug ID: 109742
           Summary: vdpau state tracker on nv92 started to hit assert
                    after vl compute work
           Product: Mesa
           Version: git
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: randrik at mail.ru
        QA Contact: nouveau at lists.freedesktop.org

Created attachment 143438
  --> https://bugs.freedesktop.org/attachment.cgi?id=143438&action=edit
hack patch to disable compute reporting in nv50

Hello. 

I tried to update my mesa install and hit one bug.

mplayer /dev/shm/tmp/output.mkv
MPlayer SVN-r38122-5.5.0 (C) 2000-2019 MPlayer Team
224 audio & 464 video codecs

Playing /dev/shm/tmp/output.mkv.
libavformat version 58.26.101 (internal)
libavformat file format detected.
[lavf] stream 0: video (vp8), -vid 0
[lavf] stream 1: audio (vorbis), -aid 0, -alang rus
VIDEO:  [VP80]  1280x720  0bpp  30.000 fps    0.0 kbps ( 0.0 kbyte/s)
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 58.47.100 (internal)
Selected video codec: [ffvp8] vfm: ffmpeg (FFmpeg VP8)
==========================================================================
Clip info:
 ENCODER: Lavf58.20.100
Load subtitles in /dev/shm/tmp/
==========================================================================
Forced audio codec: mad
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 44100 Hz, 2 ch, floatle, 0.0 kbit/0.00% (ratio: 0->352800)
Selected audio codec: [ffvorbis] afm: ffmpeg (FFmpeg Vorbis)
==========================================================================
AL lib: (EE) UpdateDeviceParams: Failed to set 44100hz, got 48000hz instead
AO: [openal] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
Movie-Aspect is undefined - no prescaling applied.
VO: [vdpau] 1280x720 => 1280x720 Planar YV12
mplayer: nv50/nv50_state.c:659: nv50_bind_sampler_states: Assertion
`!"unexpected shader type"' failed.


MPlayer interrupted by signal 6 in module: decode video
- MPlayer crashed. This shouldn't happen.
  It can be a bug in the MPlayer code _or_ in your drivers _or_ in your
  gcc version. If you think it's MPlayer's fault, please read
  DOCS/HTML/en/bugreports.html and follow the instructions there. We can't and
  won't help unless you provide this information when reporting a possible bug.
AL lib: (EE) alc_cleanup: 1 device not closed


MPlayer interrupted by signal 11 in module: decode video

mesa version Mesa 19.1.0-devel (git-55e00a2ea8) was good.

disabling PIPE_CAP_COMPUTE for nv50 'fixes' bug for me.

Note, I hope internal use of compute shaders still unaffected, or may be I read
https://cgit.freedesktop.org/mesa/mesa/commit/src/gallium/drivers/nouveau/nv50/nv50_screen.c?id=ff72440b40211326eda118232fabd53965410afd
wrongly?

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