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Date: Sat, 18 Jan 1997 08:54:48 -0500 (EST)
From: Thomas David Rivers <ponds!rivers@dg-rtp.dg.com>
Message-Id: <199701181354.IAA02954@lakes.water.net>
To: ponds!freefall.cdrom.com!freebsd-hackers
Subject: Re: 2.1.6.1 - SCSI problems (infinite bus reset) w/Aha2940UW (&2.2)
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> 
> As Thomas David Rivers wrote:
> 
> > Then, after mounting some disk space, I did the following
> > 
> >    tar cvf . /dev/rst0
> > 
> > after than runs for awhile; I hit cntrl-C to stop the 'tar' and
> > *whamo* - everything begins the reset phase.
> 
> I'm somewhat suspecting your tape drive, nevertheless.  Do you have
> the chance to test it with another controller (like an AHA-1540)?  We
> all know that the ahc driver has some rough edges right now (that's
> why 2.2 isn't out yet).
> 
> -- 
> cheers, J"org
> 
> joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
> Never trust an operating system you don't have sources for. ;-)
> 

  Hmmm... Well, it worked before the Sept. 96 changes in 2.1.5-STABLE. 
It's possible that the day I built that kernel my tape-drive "went
south"; but it seems to be a big coincidence.

  Prior to the 2940uw it was plugged into a 1542B.  It worked fine
then; but that was in 2.1.5-RELEASE.  The last time it was configured
like that was July, 1996.

  It seems to be a timing problem - is there some timeout for commands
that I can adjust?

  I can boot 2.1.5-RELEASE (boot and fixit trick again) and make sure it 
still works there; then we'd know it was a software change - how's that?

	- Dave Rivers -