lkml.org 
[lkml]   [2004]   [Jul]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Announce: dumpfs v0.01 - common RAS output API
Jesse Barnes <jbarnes@engr.sgi.com> wrote:
>
> On Wednesday, July 28, 2004 11:00 am, Eric W. Biederman wrote:
> > > I think this could end up being a good thing. It gives more people a
> > > stake in making sure that driver shutdown() routines work well.
> >
> > Which actually is one of the items open for discussion currently.
> > For kexec on panic do we want to run the shutdown() routines?
>
> We'll have to do something about incoming dma traffic and other stuff that the
> devices might be doing. Maybe a arch specific callout to do some chipset
> stuff?
>

Does ongoing DMA actually matter? After all,the memory which is being
dma-ed into is pre-reserved and allocated for that purpose, and the dump
kernel won't be using it.

It would be polite to pause for a number of seconds to allow things to go
quiet, but apart from that I think all we need to ensure is that the
drivers in the dump kernel firmly whack the hardware before reinitialising
it?

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:04    [W:0.281 / U:0.436 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site