[Bug 110848] Everything using GPU gets stuck after running+killing parallel Media loads (after running 3D benchmarks)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110848

--- Comment #47 from Eero Tamminen <eero.t.tamminen at intel.com> ---
Created attachment 145076
  --> https://bugs.freedesktop.org/attachment.cgi?id=145076&action=edit
MediaSDK sample transcode app input file for running 5 parallel MPEG2->AVC
transcoding streams

After removing the above test-case from regular testing, there's another one
that hangs, a bit simpler one.  As the earlier test-case can trigger deadlock
alone, I'm assuming this one can also.

1. Build media-driver & MediaSDK:
  
https://github.com/intel/media-driver/wiki/How-to-build-and-use-media-driver%3F
   https://github.com/Intel-Media-SDK/MediaSDK/wiki/Build-Media-SDK-on-Ubuntu
2. Run 5 instances of following multi-stream process in parallel in a same
process group, with the attached parameter file & suitably sized MPEG2 input
file:
   sample_multi_transcode -par parameters.txt
3. Kill the process group before above command finishes
4. Repeat from 2)

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