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SubjectRe: BUG: Global FPU corruption in 2.2
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Victor Zandy <zandy@cs.wisc.edu> writes:
> We have found that one of our programs can cause system-wide
> corruption of the x86 FPU under 2.2.16 and 2.2.17. That is, after we
> run this program, the FPU gives bad results to all subsequent
> processes.

We have now tested 2.4.2 and 2.2.19.

2.2.19 has the same problem.

2.4.3 does not seem to be affected. Unfortunately, we really need a
working 2.2 kernel at this time.

We also patched the 2.2.19 kernel with the PIII patch found in
/pub/linux/kernel/people/andrea/patches/v2.2/2.2.19pre13/PIII-10.bz2
on ftp.kernel.org. Same problem.

Does anyone have any ideas for us?

Thanks.

Vic

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