Re: KMSGDUMP: dump kernel messages to a diskette

Jamie Lokier (lkd@tantalophile.demon.co.uk)
Fri, 9 Jul 1999 18:51:49 +0200

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Willy Tarreau wrote:
> it must be the case because these functions were designed exactly for
> that use, ie. jumping from protected to real mode and execute a given
> code to eventually switch back to protected mode. Normaly, only the
> CPU reset line is activated by an out 0x64,0xfe, so nothing else
> should be lost on the motherboard.

Though take a look at arch/i386/kernel/proces.c:machine_restart()
-- out 0x64,0xfe does not work on some motherboards.

(Strangely it _does_ work from DOS on the board I tried).

-- Jamie

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