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x86: Disable DAC on VIA bridges
authorAndi Kleen <ak@suse.de>
Wed, 20 Jun 2007 10:23:32 +0000 (12:23 +0200)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Wed, 20 Jun 2007 21:27:25 +0000 (14:27 -0700)
Several reports that VIA bridges don't support DAC and corrupt
data.  I don't know if it's fixed, but let's just blacklist
them all for now.

It can be overwritten with iommu=usedac

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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