Comment # 22
on bug 92936
from Andy Furniss
(In reply to Andy Furniss from comment #14) > Been testing vce and there is an issue with auto. > > This is not just this kernel, I've been back and now I have a script to test > lots of runs, I can reproduce on older kernels + current fixes as well. > > The issue is that it will hang, at this time I am apparently OK in that I > can use desktop normally. There is no hung task timeout. If I kill the > gstreamer process it won't return, then I may get a hung task trace. > > Whether I kill gstreamer or not, quitting X or a VT switch will lock up > display. > > This only happens when > /sys/class/drm/card0/device/power_dpm_force_performance_level is auto. > > If it's high or low I can repeatedly run vce encodes OK - I have tested > > 1000. > > On this kernel and fixes it only takes < 5 runs to lock with the same test. > > On an older kernel it lasted for 25 runs (which is I guess why I didn't hit > it in "normal" testing + I often forced high for bench marking anyway) With the latest tonga vce firmware + current agd5f drm-next kernels I can't reproduce this anymore.
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