[PATCH 06/13] drm/radeon: improve sub allocator
deathsimple at vodafone.de
Fri Apr 20 02:11:53 PDT 2012
On 20.04.2012 09:24, Michel Dänzer wrote:
> On Fre, 2012-04-20 at 00:39 +0200, Christian König wrote:
>> Make the suballocator self containing to locking
>> and fix a overrun bug which happens with
>> allocations of different alignments.
> Sounds like this should be split up into two changes. :)
Yeah you are probably right.
But wait a moment, thinking about it some more the overrun bug is
actually a quite critical bug in mainline, cause it quickly leads to
memory corruption if two users of the SA have different alignment
restrictions. And hell, there currently is at least the IB pool (256
bytes) and the VM code (4096 bytes alignment) using it, so this could be
responsible for some of the VM corruptions we are seeing!!!
Going to write a patch immediately,
More information about the dri-devel