Re: PATCH: Reserving memory and /proc/memzones

Martin Mares (mj@atrey.karlin.mff.cuni.cz)
Mon, 26 May 1997 14:50:14 +0200


Hi,

> This kernel patch is a modified version of Michel Lespinasse's
> (walken@via.ecp.fr) /proc/memzones patch. It includes the ability to
> exclude
> memory addresses from use by marking the memory as reserved. This is
> useful
> if you have a slightly defective SIMM, which I happen to have. Since I
> had
> the kernel mark the bad memory as reserved, I have had no sig 11 errors
> while compiling the kernel or anything else. The new kernel command-line
> option is:
>
> reservemem=<start addr>,<size>,...
>
> Up to five blocks of memory can be reserved. I changed the end of low
> memory to 0xa0000 instead of 0x9f000. If this causes a problem, (I
> believe
> this was a workaround for IBM's ThinkPad) just add:
> reservemem=0x9f000,0x1000

I'll look at it and try to merge it with my chipset patches...

Martin