Finally!
commit a048f436a0210d076fc844404bf56b8b7fcb4b7b
Author: Chris Wilson <[email protected]>
Date: Wed Oct 2 14:59:11 2013 +0100
sna: Only delete unused io buffers
Before deleting the io buffer, we need to check that it is not active.
Currently we check that it is not pending use in the current batch, but
we also need to double check that it does not have outstanding use by
the GPU. Failing to do so could mean overwriting the data prior to it
being read by the GPU, a very small race but often hit!
Reported-by: Vedran Rodic <[email protected]> # and many others
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66990
Signed-off-by: Chris Wilson <[email protected]>
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