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Date:      Mon, 29 Sep 1997 08:37:14 +0200
From:      sthaug@nethelp.no
To:        se@FreeBSD.ORG
Cc:        scsi@FreeBSD.ORG
Subject:   Re: Possible ncr problem?
Message-ID:  <905.875515034@verdi.nethelp.no>
In-Reply-To: Your message of "Sun, 28 Sep 1997 11:01:42 %2B0200"
References:  <19970928110142.45106@mi.uni-koeln.de>

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> > Any thought on what this means?
> 
> Yes, again the QUEUE_FULL problem of the DORS.
> This drive can't deal with a reasonable number 
> of tagged commands at times, it seems. Since 
> the generic SCSI layer will immediately re-issue
> the failed command, there will be no adverse 
> effect, if it succeeds within 5 retries. 

I have a slightly different problem. I have an ASUS SC200 controller with
a Seagate ST15150N (the old half-height 4 GB Barracuda) and an IBM DORS
32160. The bootup messages are:

(ncr0:0:0): "IBM DORS-32160 WA0A" type 0 fixed SCSI 2
sd0(ncr0:0:0): Direct-Access 
sd0(ncr0:0:0): 10.0 MB/s (100 ns, offset 8)
(ncr0:1:0): "SEAGATE ST15150N 0022" type 0 fixed SCSI 2
sd1(ncr0:1:0): Direct-Access 
sd1(ncr0:1:0): 10.0 MB/s (100 ns, offset 8)

My problem is that I get the COMMAND FAILED,

Sep 29 02:05:09 verdi /kernel: assertion "cp" failed: file "../../pci/ncr.c", line 5565
Sep 29 02:05:09 verdi /kernel: sd1(ncr0:1:0): COMMAND FAILED (4 28) @f08e1600.

at irregular intervals, and it's always the Seagate disk it happens to.
When this starts, it never stops again until I reboot the machine. The
machine quickly becomes unusable when it happens.

(And yes, it happened again last night, while /etc/daily was being run.)

Any ideas?

Steinar Haug, Nethelp consulting, sthaug@nethelp.no



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