Re: bad pmd filemap.c, oops; 2.4.30 and 2.4.32

On Sun, Jan 15, 2006 at 03:29:15AM -0800, Chris Stromsoe wrote:
> On Mon, 9 Jan 2006, Chris Stromsoe wrote:
> >On Mon, 9 Jan 2006, Roberto Nibali wrote:
> >
> >>>That is the SCSI BIOS rev.  The machine is a Dell PowerEdge 2650 and 
> >>>that's the onboard AIC 7899.  It comes up as "BIOS Build 25309".
> >>
> >>Brain is engaged now, thanks ;). If you find time, could you maybe 
> >>compile a 2.4.32 kernel using following config (slightly changed from 
> >>yours):
> >>
> >>http://www.drugphish.ch/patches/ratz/kernel/configs/config-2.4.32-chris_s
> >
> >If/when the current run with DEBUG_SLAB oopses, I'll reboot with the 
> >config modifications.
> 
> I've been running stable with the propsed changes since the 10th.  The 
> original config and the currently running config are both at 
> <http://hashbrown.cts.ucla.edu/pub/oops-200512/>.  This is the diff:
> 
> cbs@hashbrown:~ > diff config-2.4.32 config-2.4.32-20060115
> 
> 65c65
> < CONFIG_HIGHIO=y
> ---
> ># CONFIG_HIGHIO is not set

I wonder if this change could be suspected of affecting stability. With
this unset, data will be sent from the card to low memory, then bounced
to high mem when needed. Maybe the card, northbridge or anything else
sometimes corrupts memory during direct highmem I/O from PCI ? :-/

Or perhaps it's simply too early to conclude anything.

Thanks for your report anyway.

Regards,
Willy

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