Re: [PATCH 2/2] Suppress false "mtrr all empty" warning messagewhen running as VMware guest

From: Yan Li
Date: Sun Oct 05 2008 - 08:05:54 EST


On Wed, Oct 01, 2008 at 10:03:51PM +0200, Pavel Machek wrote:
> Hi!
>
> Subject says: Suppress false "mtrr all empty" .... would you explain
> why is the message false? I believe it is very true, and points out
> fact that VMWare virtualization fails to simulate MTRR-s.
>
> IMO VMWare should just fix their emulator.

You are right, to some degree. Actually I have no strong evidence to
support this either. Since KVM doesn't set MTRR, by hunch I thought
VMware might having similar shortages. Also nothing bad can be
observed after the system booted, so I guessed that warning was
useless. Moreover, none other OSes (include old Linux kernels) is
complaining about this in VMware so users of VMware might think 2.6.27
is buggy on this.

Hope someone from VMware could clear this up. I think they are
working on this problem followed this thread. I'd be happy to help.

--
Li, Yan
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