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From: Darren Reed <avalon@coombs.anu.edu.au>
Subject: Re: recent changes to aic7xxx.*
To: avalon@coombs.anu.edu.au (Darren Reed)
Date: Sun, 6 Apr 1997 23:40:19 +1000 (EST)
Cc: hackers@freebsd.org, gibbs@freebsd.org
In-Reply-To: <199704061314.GAA20579@freefall.freebsd.org> from "Darren Reed" at Apr 6, 97 11:09:34 pm
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In some mail from Darren Reed, sie said:
> 
> 
> I just tried the recent commits of these files to sys/i386/scsi and
> sys/dev/aic7xxx and the result: my system NOW HANGS as a result of
> these error messages (well, I can still ping it, but nothing else,
> not even use the ALT keys to switch console):
> 
> Apr  6 22:06:29 freebsd /kernel: st0(ahc0:4:0): SCB 0x0 - timed out in dataout phase, SCSISIGI == 0x6
> Apr  6 22:06:29 freebsd /kernel: SEQADDR == 0x125
> Apr  6 22:06:29 freebsd /kernel: st0(ahc0:4:0): abort message in message buffer
> 
> previously I could still do other things on my system...not any more.

FWIW, I see those error messages on:

freebsd, netbsd, solaris2

maybe there is something in the 2940 which is just "buggy" when dealing
with this situation ?