Messages in this thread | | | Date | Sun, 20 Jun 2004 23:49:59 +0200 | From | Andi Kleen <> | Subject | Re: Opteron bug |
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On Sun, 20 Jun 2004 15:07:59 +0200 Manfred Spraul <manfred@colorfullife.com> wrote:
> Andi wrote: > > >The kernel never uses backwards REP prefixes. > > > > > Huh? memmove uses backwards rep movsb on x86-64, at least in 2.6.5:
Hmm, you're right. I forgot that. Ok, I will change it, although it's unlikely to be a real problem.
> But the bug appears to be so rare that it shouldn't matter - lets wait > for the microcode update. Btw, is there a runtime microcode updater for > Opteron cpus, similar to the Intel microcode driver?
AMD seems to only release microcode updates to BIOS vendors.
-Andi
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