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SubjectRe: Memory errors with 64MB RAM?
Hi Mike.

> I recently upgraded the RAM in a 166MHz Pentium system and the new
> memory doesn't seem to work (I get filesystem corruption, kernel
> paging errors, and random SIGSEGVs to various programs).

> Obviously, the first suspect is that the new memory is defective or
> incompatible. But I thought I would take a long shot and ask here
> if there is anything to watch out for when running Linux on a PC
> with 64MB or more memory.

From bitter experience, I learned to watch for BIOS's that grab the
top 4k of RAM for themselves. That's not a problem if Linux uses the
value reported by the BIOS itself, but if you start sticking append
lines specifying "mem=xxM" then watch out !!!

I now have 128M of RAM on my machine, but if I specify "mem=128M" then
it locks solid EVERY time for precicely this reason. However, if I
specify "mem=131068k" instead, thus reducing the amount of memory by
just 4k, I get NO problems whatsoever...

Best wishes from Riley.


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