From owner-aic7xxx Tue Apr 28 04:10:11 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id EAA22823 for aic7xxx-outgoing; Tue, 28 Apr 1998 04:10:11 -0700 (PDT) (envelope-from owner-aic7xxx@FreeBSD.ORG) Received: from air.steve.net (slip-32-100-110-142.vt.us.ibm.net [32.100.110.142]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id EAA22761 for ; Tue, 28 Apr 1998 04:10:06 -0700 (PDT) (envelope-from shirsch@ibm.net) Received: from localhost (localhost [127.0.0.1]) by air.steve.net (8.6.12/8.6.9) with SMTP id HAA00831; Tue, 28 Apr 1998 07:12:45 -0400 Date: Tue, 28 Apr 1998 07:12:45 -0400 (EDT) From: "Steven N. Hirsch" X-Sender: hirsch@air.steve.net To: Matthew Jacob cc: aic7xxx@FreeBSD.ORG Subject: Re: linux: the tag that wouldn't die? In-Reply-To: <35456D21.53E45A9D@feral.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-aic7xxx@FreeBSD.ORG Precedence: bulk On Mon, 27 Apr 1998, Matthew Jacob wrote: > I have a system with a Pentium on a PIC/MIG card with an > onboard AIC chip- and a pretty simple setup: (snip) > I'm running a pretty heavy DMA and PCI bus access load- every > now and then, the linux aic driver gets stuck in the following > horrible scenario- something times out, and then I get stuck > with an infinite sequence of: > > SCSI host 1 abort (pid 253052) timed out - resetting > SCSI bus is being reset for host 1 channel 0. > (scsi1:0:0:0) Invalid SCB ID 28 is active, SCB flags = 0x805. > > Anyone got a notion about what this might be about? > This is suggestive of your drive reporting itself as capable of tagged queueing, but being configured with tagging disabled. Very common with OEM IBM SCSI drives. Hunt down the (now ageing) scsi-config package and clear the Dque bit on the offending drive. Hope this sets you in the right direction! Steve To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe aic7xxx" in the body of the message