Re: L2 cache sizes different: BIOS bug?

Richard Gooch (rgooch@atnf.csiro.au)
Thu, 4 Feb 1999 11:22:37 +1100


cat@zip.com.au writes:
> Richard Gooch wrote the following:
> >
> > Hi, all. I've just discovered, to my horror, that a dual PII machine
> > here has different L2 cache sizes for each CPU. The boot CPU (#1) is
> > reported to have 0 kB whereas the other CPU (#0) is reported to have
> > 512 kB (as expected for a PII). This is with 2.1.126. I get the same
> > with 2.2.0.
>
> My box isn't dual cpu but here's two problems I've had witrh the PII-350
> on my Aopen MB:
>
> 1. The PII-350 suddenly becomes a PII-175 and linux decides it doesn't
> like my HD.
> 2. My PII-350 suddenly forgets where it put it's cache.
>
> Each of these problems show up on boottime -of the machine- so I suspect
> it's a BIOS bug in my case. Have you checked the stats given to you by
> your BIOS about both your CPUs? For me it's definately not Linux that's
> at fault.

Turns out it was a hardware problem. First thing this morning I
swapped the CPUs. The problem went from CPU #1 to CPU #0. QED.
Time to abuse Digital/Compaq. Grrrr.

Regards,

Richard....

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