Date: Wed, 13 May 1998 13:36:34 -0600 From: "Justin T. Gibbs" <gibbs@plutotech.com> To: fireston@lexmark.com Cc: gibbs@plutotech.com (Justin T. Gibbs), freebsd-scsi@FreeBSD.ORG (SCSI FreeBSD) Subject: Re: SCSI timeouts in dataout mode Message-ID: <199805131940.NAA19928@pluto.plutotech.com> In-Reply-To: Your message of "Wed, 13 May 1998 15:37:30 EDT." <199805131937.AA01770@interlock2.lexmark.com>
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>How bizarre, how bizarre. > >We tried many things, including the hacks to scsi_da.c as suggested. No help >there. > >Having reached the point of pure perversity, we by chance turned the >Disconnect option off in the Adaptec BIOS. And things started working and >working well - we bonnie'd a 512MB file without a problem. > >Why? Because you effectively prevented the Adaptec from using tagged queuing. Look at your dmesg output. It won't report "Tagged Queuing Device" for your array. Can you send me a SCSI bus trace? CAM will really pound that array, and it wouldn't be the first time that FreeBSD exposed bugs in an array. >-- >Mik Firestone fireston@lexmark.com >If ever I become an Evil Overlord: >My legions of terror will have helmets with clear plexiglass visors, not >face-concealing ones. > -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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