In message from "Jason Clinton" <[EMAIL PROTECTED]>
(Thu, 5 Jun 2008 13:16:33 -0500):
On Thu, Jun 5, 2008 at 1:09 PM, Mikhail Kuzminsky <[EMAIL PROTECTED]>
wrote:
In message from Mark Hahn <[EMAIL PROTECTED]> (Thu, 5 Jun 2008
13:55:01
-0400 (EDT)):
I'm mystified by this: B2 was broken, so using it without the bios
workaround is just a mistake or masochism. the workaround _did_
apparently
have performance implications, but that's why B3 exists...
do you mean you know of G03 problems on B2 systems which are
operating
_with_ the workaround?
I don't know exactly, but I think the crash was under absence of
workaround, because I was not informed that there was some kernel
patches or
BIOS changes. This was interesting for me also, because I have no
information how this hardware problem may be affected in the "real
life".
Mikhail
The B2 BIOS work-around is to disable the L3 cache which gives you a
10-20%
performance hit with no reduction in power consumption.
The kernel patch is very extensive and, last I heard, under NDA. AMD
has
said publicly that the patch gives you a 1-2% performance hit.
This URL is old, but may give some information:
https://www.x86-64.org/pipermail/discuss/2007-December/010260.html
Mikhail
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