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From: Scott Mace <smace@metal.neosoft.com>
Message-Id: <199512201644.KAA04924@metal.ops.neosoft.com>
Subject: AHA2940W problem.
To: hackers@FreeBSD.ORG, scsi@FreeBSD.ORG
Date: Wed, 20 Dec 1995 10:44:13 -0600 (CST)
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I'm having a problem with an AHA2940W with a AIC7870P chip on it.

It only probes 16 SCBs (is this normal?).  And periodically I get:

/kernel: ahc_scsi_cmd0: more than 256 DMA segs
/kernel: sd0: oops not queued
/kernel: biodone: buffer already done

I forced the driver (sys/i386/scsi/aic7xxx.c) to walk the SCBs 
and when I did this I get 255 SCBs.  

	Scott