I think I understand it:
commit 5287660aafe45859c07874c22dca99c1ff5e555a
Author: Chris Wilson <ch...@chris-wilson.co.uk>
Date: Fri Aug 2 13:18:12 2013 +0100
sna: Reserve relocation entries for the deferred VBO
Whilst we reserved exec entry slots for the deferred VBO, there were no
relocation spaces reserved. So if we submitted a render command followed
by a multitude of BLT copies, we could then overrun the relocation array
when adding the deferred vbo to the batch.
Reported-by: Danny <moondr...@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67504
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Please do check that this indeed fixes the problem, thanks!
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https://bugs.launchpad.net/bugs/1203273
Title:
(needs 2.21.14) Xorg crashed with SIGABRT in has_offload_slaves()
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