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SubjectRe: Thinkpad 600 memory woes
In <uocpv1r27aq.fsf@evelake.pdl.cs.cmu.edu> Nat Lanza (magus@cs.cmu.edu) wrote:
> Peter Monta <pmonta@halibut.imedia.com> writes:

>> Try mem=127M. I forget what the issue was, but this worked
>> for me. (Actually I used mem=95M with 96M of installed DRAM.)
>> I think this was mentioned on one of the Thinkpad 600
>> pages linked from the main linux-laptop page.

> I believe the problem is that the BIOS really really wants to have
> that last meg of memory reserved for itself, and it gets cranky when
> the kernel overwrites what it's put there.

Not at all. BIOS just need few KiBs (64 or 96 or may be 128) for shadowing
ROM and so on so you can usually use 127.6 or may be even 127.8 but it does
not worth it. It's not only Thinkpad -- almost all PC's wil do this...





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