Date: Mon, 26 Feb 1996 22:31:03 -0800 From: "Justin T. Gibbs" <gibbs@freefall.freebsd.org> To: se@ZPR.Uni-Koeln.DE (Stefan Esser) Cc: Dave Andersen <angio@aros.net>, questions@freebsd.org Subject: Re: Ncr scsi: overlapped commands attempted Message-ID: <199602270631.WAA02053@freefall.freebsd.org> In-Reply-To: Your message of "Mon, 26 Feb 1996 16:08:05 %2B0100." <199602261508.AA04154@Sysiphos>
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>On Feb 23, 19:10, Dave Andersen wrote: >} Subject: Ncr scsi: overlapped commands attempted >} I'm wondering if anyone could lend me a quick clue here. When I boot >} up, I get: >} >} ABORTED COMMAND asc:4e,0 Overlapped commands attempted >} >} from an HP 2gb SCSI drive. This happens under both -release and >} -current. I'd prefer to run -release or -stable on this machine. >} >} Any suggestions? > >Yes: Switch off tagged commands ... :( > >The HP drive is known to cause problems >when used with tagged commands. The problem >is diagnosed, but the solution isn't obvious, >yet ... > The only thing that comes to mind is that an untagged request sense command is pending when another tagged command is queued to the target. The aic7xxx driver never tagges request sense commands since the spec dictates that they must be untagged (and some drives choke on this) and it also gurantees that no other commands are posted to the target until the request sense completes successfully. >Regards, STefan >-- > Stefan Esser, Zentrum fuer Paralleles Rechnen Tel: +49 221 4706021 > Universitaet zu Koeln, Weyertal 80, 50931 Koeln FAX: +49 221 4705160 > ============================================================================= >= > http://www.zpr.uni-koeln.de/~se <se@ZPR.Uni-Koeln.DE> -- Justin T. Gibbs =========================================== FreeBSD: Turning PCs into workstations ===========================================
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