In place kexec

[H. Peter Anvin]

On 07/30/2010 01:15 PM, David Woodhouse wrote:
> 
>  - 'on with page tables cleared', in which case you are safe but some
>     devices might get upset when their DMA is aborted, so their driver
>     needs not to be a pile of shit, and needs to recover from that.
> 

I presume this is the state he's referring to.

Now, if this means there are page tables in memory those tables are
still subject to being overwritten.

	-hpa