Re: [Fastboot] Re: Announce: dumpfs v0.01 - common RAS output API

Andrew Morton
2004-07-29T00:22:34Z

Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
>
> On Iau, 2004-07-29 at 00:17, Eric W. Biederman wrote:
> > What is your concern with stopping DMA?
> > - Not smashing the recovery routine.
> > - Getting a corrupted core dump because of on-going DMA?
>
> Completely random happenings occurring when they are trivial to avoid.
> Given all the worries about SHA signed in kernel standalone objects I
> find it farcical that the same people don't even care about ensuring
> something isnt DMAing over their dump partition description.
>

eh? People do care. The point here is that we should stop the DMA in the
dump kernel, not from within the broken kernel.

btw, if we simply insert a five-second-pause, what problems does that
leave? Network Rx, which is OK. Disk writes will have completed (?).
What remains?