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SubjectRe: [PATCH] trim memory not covered by WB MTRRs

On Thu, 14 Jun 2007, Pim Zandbergen wrote:

> Thanks for this patch. I was having the exact same symptoms as Justin Piszcz,
> on a different, but similar motherboard:
> Motherboard: GigaByte GA-G33-DS3R
> BIOS rev: F2
> Chipset: Intel G33
> Memory: 8GB
> Distro: Fedora 7 x86_64
> Kernel: kernel-2.6.21-1.3194.fc7
> Building vanilla 2.6.22-rc4 with your patch solved the problem.
> I'm now seeing this in the syslog
> ***************
> **** WARNING: likely BIOS bug
> **** MTRRs don't cover all of memory, trimmed 196608 pages
> ***************
> leaving me 7416672 kB of usable memory.
> If there's any way I can help with more info or testing,
> then let me know.
> Thanks,
> Pim

That's strange, I guess different chipsets 'chew' up different amounts of
memory OR you have your DVT(?) (video-card memory/aperature) set to 256MB?
I have mine set to 128MB, in top:

Mem: 8039576k total, 6187304k used, 1852272k free, 696k buffers

What type of memory are you using and what is your DVT set to?

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