Re: [TCLUG:10371] SMP and Adaptec 2940

[Nate Carlson <natecars@real-time.com>]

On Mon, 22 Nov 1999, Adam Maloney wrote:

> Hey guys, I'm hoping you can help me out here.
> 
> I've been running a server with a single P-Pro 200 CPU for awhile now. 
> I just installed slackware 7 on it, and it's been working fine.  I
> received a second CPU (same stepping, completely compatible as a 2nd
> processor in the machine) today.  When I add in the second CPU (after
> adjusting appropriate jumpers) and recompile the kernel to add SMP
> support (w/o changing anything else) I start getting SCSI reset errors.
> 
> The board is a tyan S-1662 (440BX, I think) dual processor.  I'm using
> Pentium Pro 200/256k with SY032 stepping.  The SCSI card is an adaptec
> 2940U/W, and I'm using the aic7xxx driver in the kernel.
> 
> like I said, the machine works flawlessly, and then I recompile the
> kernel and only add SMP support and I get SCSI bus resets and timeouts
> during boot.  It won't get past that.
> 
> I even went so far as to grab the bleeding-edge 2.3.9 kernel and try
> that.  Same results.
> 
> I've tried searching for linux+smp+adaptec and such, but haven't found
> anything relevant.  Lots of stuff from 2.1.x and the machine hanging,
> but nothing for this.  Any ideas?
> 

If you're not already at 2.2.13, try that. I know there have been some
SCSI fixes recently. Oh, and 2.3.9 != bleeding edge; that came before
2.2.10. Bleeding edge == 2.3.28.  :)

-- 
Nate Carlson <carlson@real-time.com>    | Phone : (612)943-8700
http://www.real-time.com                | Fax   : (612)943-8500