[Bug 97240] VCE encoding sometimes locks up since 4.8-rc1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97240

            Bug ID: 97240
           Summary: VCE encoding sometimes locks up since 4.8-rc1
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: haagch at frickel.club

RX 480 with mesa git etc.

Running this gstreamer pipeline

gst-launch-1.0 -e filesrc location=big_buck_bunny_720p_1mb.mp4 ! qtdemux !
decodebin ! videoconvert ! omxh264enc ! h264parse ! matroskamux ! filesink
location=/tmp/output.mkv

works fine on 4.7.

On 4.8-rc1 running it a couple of times randomly locks up the gst-launch
process. Then while it hangs, running glxgears or so locks up everything.
On the plus side, when it works, it works a lot quicker on 4.8.

I'll look into bisecting unless someone else can reproduce and already knows
why it happens.

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