Date: Sat, 16 Jun 2001 10:44:00 -0700 From: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca> To: "Justin T. Gibbs" <gibbs@scsiguy.com> Cc: Matt Dillon <dillon@earth.backplane.com>, freebsd-stable@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG Subject: Re: Another SCB timeout lockup - this time with console logs! Message-ID: <200106161744.f5GHi1C11385@cwsys.cwsent.com> In-Reply-To: Your message of "Sat, 16 Jun 2001 10:32:37 MDT." <200106161632.f5GGWbU04297@aslan.scsiguy.com>
next in thread | previous in thread | raw e-mail | index | archive | help
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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200106161744.f5GHi1C11385>