[Bug 73696] [915gm TearFree] slow, screen corruption due to EDEADLK (fence starvation)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73696

--- Comment #13 from Chris Wilson <chris at chris-wilson.co.uk> ---
Created attachment 92311
  --> https://bugs.freedesktop.org/attachment.cgi?id=92311&action=edit
Stall waiting for flips to complete to release a fence

I think this should do the trick - introduce a stall waiting for the required
fence. (Though the stall here will be overkill.)

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