On Mon, 29 Apr 1996 greywolf@defender.VAS.viewlogic.com wrote:

> SLC, 16MB RAM, Sun0669 + Sun0327, CD-ROM, EXB-8200.
> 
> I will try shortening the connector cables, but here is a summary of my
> problems thus far:
> 
>  * When accessing more than one SCSI device at a time, I get:
> 	esp0:  RESELECT (7 bytes in FIFO!)
>    This happens most frequently when I'm trying, say, to do a restore(8)
>    of the filesystems from tape (it fails during LARGE files, mostly, but
>    can fail anywhere).  Snapshot 1.1B-960412 kernel and userland; haven't
>    tried to rebuild the world from 4/23 yet.  Same problem on:
> 	SS1+, 24MB RAM, 2xSUN0424 disks with the occasional 4mm DAT hooked
> 	to it.

> Is there a way to disable SCSI reselection?  Right now, I'm not terribly
> interested in performance half as much as I'm interested in stability, and
> until I can locate some hints in this direction, I'm stuck running StunOS :-(.

We have the exact same thing happening on our SS1. In the end we had to 
disable reselection by changing the "1" parameter to MSG_IDENTIFY() in 
sys/arch/sparc/dev/esp.c:584 to a "0". Now we are at least running, but 
not very fast.

Peter