From owner-freebsd-stable Sat Jun 16 10:45:59 2001 Delivered-To: freebsd-stable@freebsd.org Received: from point.osg.gov.bc.ca (point.osg.gov.bc.ca [142.32.102.44]) by hub.freebsd.org (Postfix) with ESMTP id 976B337B403; Sat, 16 Jun 2001 10:45:49 -0700 (PDT) (envelope-from Cy.Schubert@uumail.gov.bc.ca) Received: (from daemon@localhost) by point.osg.gov.bc.ca (8.8.7/8.8.8) id KAA12994; Sat, 16 Jun 2001 10:45:31 -0700 Received: from passer.osg.gov.bc.ca(142.32.110.29) via SMTP by point.osg.gov.bc.ca, id smtpda12992; Sat Jun 16 10:45:30 2001 Received: (from uucp@localhost) by passer.osg.gov.bc.ca (8.11.4/8.9.1) id f5GHjPT16689; Sat, 16 Jun 2001 10:45:25 -0700 (PDT) Received: from UNKNOWN(10.1.2.1), claiming to be "cwsys.cwsent.com" via SMTP by passer9.cwsent.com, id smtpdF16684; Sat Jun 16 10:44:49 2001 Received: (from uucp@localhost) by cwsys.cwsent.com (8.11.4/8.9.1) id f5GHi1C11385; Sat, 16 Jun 2001 10:44:01 -0700 (PDT) Message-Id: <200106161744.f5GHi1C11385@cwsys.cwsent.com> Received: from localhost.cwsent.com(127.0.0.1), claiming to be "cwsys" via SMTP by localhost.cwsent.com, id smtpdK11381; Sat Jun 16 10:44:00 2001 X-Mailer: exmh version 2.3.1 01/18/2001 with nmh-1.0.4 Reply-To: Cy Schubert - ITSD Open Systems Group From: Cy Schubert - ITSD Open Systems Group X-Sender: schubert To: "Justin T. Gibbs" Cc: Matt Dillon , freebsd-stable@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG Subject: Re: Another SCB timeout lockup - this time with console logs! In-reply-to: Your message of "Sat, 16 Jun 2001 10:32:37 MDT." <200106161632.f5GGWbU04297@aslan.scsiguy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 16 Jun 2001 10:44:00 -0700 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message <200106161632.f5GGWbU04297@aslan.scsiguy.com>, "Justin T. Gibbs" wri tes: > > Ok, it happened again. ahc0 and fxp0 both went poof and started > > looping on timeouts. Here is the console log. I included a bunch > > of the repetitions. It repeats forever (I have another 15000 lines I > > didn't include). > > >From what I can tell, the aic7xxx card is sitting in a loop waiting > for its DMA of the next transaction to complete. The fxp driver seems > to have similar problems with burst transfers at the same time. My guess > would be that the chipset gets wedged somehow, but without chipset > information from ServerWorks, this is going to be a tough nut to crack. > Having a PCI bus analyzer might help as well, assuming there is a slot > on either the bus fxp0 or ahc0 is sitting on. My server system at home, an ASUS CUSL2-C motherboard based on the i815E chipset with a 2940UW (aic7880: Wide Channel A, SCSI Id=7, 16/255 SCBs), frequently wedged, especially when accessing a SCSI device. Disabling PCI 2.1, ie. reverting to PCI 2.0, resolved my problem. If your motherboard has a PCI support option you might want to try to back it off to PCI 2.0. Since backing my motherboard's PCI support down to 2.0 I haven't had a wedge since. Regards, Phone: (250)387-8437 Cy Schubert Fax: (250)387-5766 Team Leader, Sun/Alpha Team Internet: Cy.Schubert@osg.gov.bc.ca Open Systems Group, ITSD, ISTA Province of BC To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message