Subject: Re: 1.4.2 SHARK kernel freezes when doing lots of disk i/o
To: Manuel Bouyer <bouyer@antioche.lip6.fr>
From: Ignatios Souvatzis <is@jocelyn.rhein.de>
List: tech-kern
Date: 04/08/2000 21:15:56
On Fri, Apr 07, 2000 at 03:46:46PM +0200, Manuel Bouyer wrote:
> On Fri, Apr 07, 2000 at 01:26:51PM +0200, Ignatios Souvatzis wrote:
> > So....
> > 
> > I've tested back to forth, and it definitely is the 1.66.2.3 (or later) 
> > version of dev/ic/wdc.c that triggers the problem.
> 
> Did you experience 'lost interrupts' problem on this box before this ?
> This looks like a timing problems (The change in 1.66.2.3 should make the
> interrupt get handled faster).

Ha!

I've forced the disk to PIO mode 3 instead of 4 using config flags 0x0b,
and now I get "missing untimeout" few seconds after reaching single user
mode (with the 1.66.2.3 wdc.c).

Regards,
	-is