[Bug 61628] [ilk] Corrupted rendering of page previews in Firefox with >xf86-video-intel-2.20.18

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=61628

--- Comment #17 from Coacher <itumaykin at gmail.com> ---
(In reply to comment #15)
> I've looked through all callers to see if I can find one that missed the
> MOVE_WRITE to no avail. I've double checked the kernel to see if there is a
> loop hole, again to no avail. So I'm a little bit lost to see where the
> missed synchronisation is coming from, and I haven't yet thought of a good
> test to force/catch an error.
> 
> In the meantime, I've applied one minor tweak to xf86-video-intel.git,
> 
> commit 60ec35b8d25ecfabf1744ea7bc81109d7f2a90e2
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Tue Mar 5 11:14:37 2013 +0000
> 
>     sna: Be explicit when checking for an idle bo after CPU synchronisation
> 
> Do you mind giving that a quick test?

OK, I'll test it later today

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