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SubjectRaid code panic with kernel compiled for i486
Date
I was testing the 2.4.0 kernel and found out that when a kernel
compiled for processors under P3 (i486, P2/Celeron) and booting it on a P3
the kernel
panics when it's tries to test different RAID5 xor algorithms.

The panic looks something like this:

...
raid5: measuring checksuming speed
8regs : 773.430 MB/sec
32regs : 562.356 MB/sec
invalid operand: 0000
CPU: 0
EIP: 0010:[<c0259c7d>]
...

I've tried with:
2.4.0, gcc 2.95.2
2.4.0-ac4, gcc 2.95.2
2.4.0 SMP, gcc 2.95.2
2.4.0 UP, egcs 1.1.2

Kaj-Michael Lang
milang@tal.org

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