On Thursday, June 14, 2007 1:26:07 Justin Piszcz wrote:
> 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
Thanks for testing, Pim. Glad it works for you. Keep an eye out for
BIOS upgrades, the next version might fix it.
> 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?
Different BIOSes will map things differently, so I'd expect differences
in the "trimmmed xxx pages" message across machines. But yeah, BIOS
config options can also affect things, in particular I've heard that
the fan control options change MTRR setup significantly.
Jesse
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