Re: PROBLEM: smp-system will work very slow with kernel 2.2.2

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 26 Feb 1999 17:48:58 +0000 (GMT)


> I'm wondering why the bogomips of the second CPU is only 2.5. If I compile
> the kernel for only one cpu the system will be slow, too. I don't know

Your BIOS is faulty. It fails to set the 2nd cpu up properly. Fortunately
all is not lost...

> My board is a GA-686DLX, Distribution: SuSe 6.0.

That explains it. This is a known bad bios. NT knows about this and works
around. Linux will do likewise if you enable the CONFIG_MTRR option and
rebuild your kernel.

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