Re: [RFC]Kexec based crash dumping

[Tonnerre]

Salut,

On Thu, Aug 19, 2004 at 08:45:00AM +0900, Itsuro Oda wrote:
> - prepare a kernel which does only dump real memory to block
>   device. ("dump mini kernel")
> - pre-allocate the memory (4MB is enough) used by the dump mini
>   kernel and pre-load the dump mini kernel.
> - when crash occur exec the dump mini kernel.
> - the dump mini kernel stands in and only uses pre-allocated
>   area.

One question, what  happens in your concept when  some stubborn zombie
kernel driver  (say Nvidia) comes  along and overwrites  random memory
areas? Will the booting of the dump kernel simply fail?

			    Tonnerre

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