Re: [gentoo-amd64] Re: mtrr: base is not aligned

[Marco Matthies <marco-ml@gmx.net>]

Hi,

i'm not an expert on this subject myself but i found it nonetheless 
interesting, here's what i found mostly by grepping and googling:

Here's someone who is also getting these huge reported memory sizes:
http://lkml.org/lkml/2005/9/12/35
Found it by googling for 983552MB, there's more there.

There's is some info on mtrr's with vesafb here:
/usr/src/linux-2.6.13-gentoo-r3/Documentation/fb/vesafb.txt, line 176
Seems to suggest trying video=vesafb:nomtrr if you're using vesafb.

Also some other reports seem to hint at Xorg as the culprit:
https://bugs.freedesktop.org/show_bug.cgi?id=4310
and others found by googling "mtrr: type mismatch for".

You might want to also grep Xorg.log for the addresses provided by
'cat /proc/mtrr' or just the prefix such as
'grep -in 0xd /var/log/Xorg.0.log' in my case, that should some results 
(Xorg.log doesn't seem to mention mtrr literally, as far as i can see).

I'm sorry that I don't have an answer to the actual problem, but I'm 
very thankful for the interesting explanations about mtrr from both of 
you (Duncan and Mark).

Cheers,
Marco
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