Re: kmsgdump 0.4.1 released (bugfix)

=?iso-8859-1?q?willy=20tarreau?= (wtarreau@yahoo.fr)
Mon, 25 Oct 1999 11:09:02 +0200 (CEST)


> The hardware is an IBM PS/2 model 9556slc2. My guess
> is that the BIOS doesn't respond correctly to your
calls, but that's
> just a wild shot.

no, the bios doesn't matter here, because it is only
used after the cpu is reset. Since you get an oops,
the cpu has not been reset yet.

> I leave it up to you to analyse the oops.
> This is 100% repeatable on my box.

interesting ;-)

> >>EIP; c01eecfd <reboot_setup+d/b0> <=====
> Code; c01eecfd <reboot_setup+d/b0>
> 00000000 <_EIP>:
> Code; c01eecfd <reboot_setup+d/b0> <=====
> 0: 00 00 add %al,(%eax)

it seems that the function reboot_setup has been
overwritten by something, because this is absolutely
not its code. I've just disassembled it to compare,
and it contains some *real* code, not junk like here.

I can't see in my code what could overwrite
reboot_setup before it is called. Could you try to
dump it before pressing Sysrq+d, please ?

TIA.

Willy

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