Comment # 58
on bug 106175
from Nicholas Kazlauskas
(In reply to Brandon Wright from comment #55) > Created attachment 142558 [details] [review] [review] > Patch that "fixes" the problem. > > I've attached a patch that fixes the problem for me. It copies parts from > the intel patch and uses the existing async infrastructure for the cursor. > > It's really tiny, so I hope this is helpful enough to get this problem fixed > quick. This is a nice attempt but it only resolves the problem because it relies on the blocking behavior in atomic check that amdgpu_dm currently does (and shouldn't be doing). Asynchronous updates can and will occur in parallel with other commits on worker threads. Without the wait in atomic_check you'll see the IGT legacy cursor tests break with this patch (and there will probably be system faults as well). There are larger problems within amdgpu_dm's commit tail that if addressed should resolve this issue for compton I'd imagine.
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