From owner-freebsd-hackers Wed Jul 12 13:30:09 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id NAA24163 for hackers-outgoing; Wed, 12 Jul 1995 13:30:09 -0700 Received: from ns1.win.net (ns1.win.net [204.215.209.3]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id NAA24157 for ; Wed, 12 Jul 1995 13:30:07 -0700 Received: (from bugs@localhost) by ns1.win.net (8.6.11/8.6.9) id QAA16323 for hackers@freebsd.org; Wed, 12 Jul 1995 16:36:36 -0400 From: Mark Hittinger Message-Id: <199507122036.QAA16323@ns1.win.net> Subject: Re: SCSI disk wedge (fwd) To: hackers@freebsd.org Date: Wed, 12 Jul 1995 16:36:35 -0400 (EDT) X-Mailer: ELM [version 2.4 PL23] Content-Type: text Content-Length: 1186 Sender: hackers-owner@freebsd.org Precedence: bulk > > Can you be more specific about which controller and/or drives you are > > seing this with? Trying to recall the mail for the last month with > > ``disk channel hangs'' as the keyword doesn't work for me, my poor old > > mind is not what it use to be :-) > Aha1742 and AHA 27xx -- both EISA. > On the 27xx driver we get an error, on the 1742 the failure is silent. > Other than that, the behavior is identical. I'm running two p60 32mb eisa with AHA27xx. I have some HP drives and some seagate barracudas. Going to ditch the HP soon. I beat up on them pretty heavily and do not see a problem. My motherboards are those weirdo broken DMA boards so even though I have 32mb I have to use bounce buffers. Just for grins you might try a kernel with bounce buffers and see if you get the hangs. Another dumb idea is that something else is causing the problem and the symptom is a scsi timeout. I've made this mistake and chased a wild goose. I don't wanna open the box and find out what my adaptec firmware rev level is but...... The only other i/o in the boxes are the EISA style 3c509. I am running the -current build from June 30'th. Regards, Mark Hittinger bugs@win.net