Subject: Re: 1.4.2 SHARK kernel freezes when doing lots of disk i/o
To: Manuel Bouyer <>
From: Ignatios Souvatzis <>
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 (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 should make the
> interrupt get handled faster).


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 wdc.c).