Strange writings at 0x0

Hi

When tracking a bug in our own code we stumbled over some strange writings to addr 0x0.

The pattern :

00000000 : 55 00 30 55 01 30 5e 80 00 00 00 00 00 00 00 00

are written continuously to memory.

The writings have in them self no effect, but must be considered a bad sign.

We are running on a MPC857T rev. A BETA running at 50 MHZ. Linux version 2.4.4 from Denx

Have anybody seen something like this or have anybody an idea to where the data are
coming from. (The CPM is a sure guess, but what are generating it ?)

Thanks.

Jakob

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I think the file arch/ppc/kernel/head_8xx.S
saves stuff on address 0 in the tlb handler.
(line 361 on 2002-03-21)

/ magnus

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