atom feed9 messages in org.freebsd.freebsd-scsiRe: Overlapped Commands error
FromSent OnAttachments
Andrew BoyerJun 16, 2010 9:17 am 
Matthew JacobJun 16, 2010 10:56 am 
Andrew BoyerJun 16, 2010 12:06 pm 
Matthew JacobJun 16, 2010 1:02 pm 
Matthew JacobJun 16, 2010 1:14 pm 
Andrew BoyerJun 16, 2010 1:14 pm 
Andrew BoyerJun 16, 2010 1:30 pm 
Scott LongJun 16, 2010 4:31 pm 
Matthew JacobJun 16, 2010 4:50 pm 
Subject:Re: Overlapped Commands error
From:Andrew Boyer (abo@averesystems.com)
Date:Jun 16, 2010 1:30:51 pm
List:org.freebsd.freebsd-scsi

On Jun 16, 2010, at 4:14 PM, Matthew Jacob wrote:

Can anyone point me to where in the stack the command identifier is assigned? I
see where MPT assigns tags in target mode, but it's the initiator in this case.
Any advice?

The mpt f/w assigns tags. Don't really know what happened here.

Also, is CAM doing the right thing by retrying? scsi_error_action() in
cam/scsi/scsi_all.c always sets the retry bit on aborted commands, even though
the spec quoted above makes it sound like this should be a fatal error ("This is
considered a catastrophic failure on the part of the SCSI initiator device").
Should scsi_error_action() be looking at the Additional Sense Code?

Not really, IMO. It's up to each periph driver to decide whether commands are
statefull or can be retried with impunity.

OK. Thank you for looking into it.

-Andrew

-------------------------------------------------- Andrew Boyer abo@averesystems.com

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