AHA-2940 Ultra/Ultra Wide

[Daniel M. Eischen]

> I've then downloaded 2.2-970914-RELENG thinking it would have a newer 
> (better ?) set of drivers for the aic7xxx stuff. I extracted just the 
> aic* files and directories, made a few mods to files.i386 and built a 
> new kernel with them, ie. primarily a 2.2.2-RELEASE kernel with the 
> aic stuff from 2.2-970914-RELENG.
> 
> The results are below, there seem to be less errors and no SCSI Bus 
> reset this time.
> 
> Would I now be correct in concluding that its probably not the 
> aic7xxx driver (et al.) but a more likely a SCSI termination problem 
> ?

If you're terminating the bus with the JAZ drive, I'd say
that could be a problem.

> Sep 16 10:16:08 www /kernel: ahc0 <Adaptec 2940 Ultra SCSI host 
> adapter> rev 0 int a irq 11 on pci0:10 Sep 16 10:16:08 www /kernel: 
> ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs
> Sep 16 10:16:08 www /kernel: ahc0 waiting for scsi devices to settle
> Sep 16 10:16:08 www /kernel: (ahc0:2:0): "QUANTUM FIREBALL ST6.4S 
> 0F04" type 0 fixed SCSI 2
> Sep 16 10:16:08 www /kernel: sd0(ahc0:2:0): Direct-Access 6180MB 
> (12657717 512 byte sectors)
> Sep 16 10:16:08 www /kernel: (ahc0:6:0): "iomega jaz 1GB J^77" type 0 
> removable SCSI 2
> Sep 16 10:16:08 www /kernel: sd1(ahc0:6:0): Direct-Access 
> Sep 16 10:16:08 www /kernel: sd1(ahc0:6:0): ILLEGAL REQUEST asc:24,0 
> Invalid field in CDB
> Sep 16 10:16:08 www /kernel: sd1 could not mode sense (4). Using 
> ficticious geometry
> Sep 16 10:16:08 www /kernel: ahc0: board is not responding

What is wrong with the JAZ drive here?  It doesn't seem to be 
responding correctly.  Have you got wide negotiation enabled for
it?

Dan Eischen
deischen at iworks.InterWorks.org