From owner-freebsd-hackers Thu Jul 13 00:23:11 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id AAA22447 for hackers-outgoing; Thu, 13 Jul 1995 00:23:11 -0700 Received: from mpp.minn.net (mpp.Minn.Net [204.157.201.242]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id AAA22441 for ; Thu, 13 Jul 1995 00:23:08 -0700 Received: (from mpp@localhost) by mpp (8.6.11/8.6.9) id CAA02184; Thu, 13 Jul 1995 02:19:02 -0500 From: Mike Pritchard Message-Id: <199507130719.CAA02184@mpp> Subject: Re: SCSI disk wedge To: terry@cs.weber.edu (Terry Lambert) Date: Thu, 13 Jul 1995 02:19:02 -0500 (CDT) Cc: tom@misery.sdf.com, karl@Mcs.Net, rgrimes@gndrsh.aac.dev.com, freebsd-hackers@FreeBSD.ORG In-Reply-To: <9507130522.AA22828@cs.weber.edu> from "Terry Lambert" at Jul 12, 95 11:22:01 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 1027 Sender: hackers-owner@FreeBSD.ORG Precedence: bulk > > The 1742 driver has been around for a long time and is very similar to > > the driver in NetBSD. However, the 2742/2842/2942 driver is quite > > recent. It is _very_ odd that you have problems with both adapters. > > Clearly, it is an issue of tagged command queuing, very large transfers, > bus on time, or one of the many issues in the shared SCSI, VM, block I/O, > and/or user space code above them all, only the last of which is shared > with BSDI (and therefore possible to rule out). > Terry Lambert > terry@cs.weber.edu Just to toss my $0.02 in, I don't think I would blame any tagged queuing problems on the 27/28/2942 driver anymore. You have to explicitly enable that via a #define right now. I've also been running for around 4 - 6 weeks with tagged queuing enabled using one of the "problem" drives with absolutely no problems. Now if the guy enabled it and was having problems....... -- Mike Pritchard mpp@legarto.minn.net "Go that way. Really fast. If something gets in your way, turn"