Date: Tue, 04 Jan 2000 12:04:42 -0800 From: Mike Smith <msmith@freebsd.org> To: "Kenneth D. Merry" <ken@kdm.org> Cc: Bill Swingle <unfurl@dub.net>, scsi@FreeBSD.ORG, gibbs@FreeBSD.ORG Subject: Re: Invalidating pack messages Message-ID: <200001042004.MAA01667@mass.cdrom.com> In-Reply-To: Your message of "Mon, 03 Jan 2000 22:52:25 MST." <20000103225224.B10024@panzer.kdm.org>
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> > Then about 10 minutes later with no other errors inbetween, it barfed > > this several times: > > > > (da0:ahc0:0:0:0): Invalidating pack > > I'm not sure why it would spit that out multiple times. The "Invalidating > pack" message is issued by the da driver when it gets an ENXIO error from > the error recovery code. This can happen if the retry count is exhausted > on one of several sense codes (you can search through scsi_all.c for ENXIO) > or if the retry count is exhaused on selection timeouts. Perhaps we might get one message per SCB that's failed recovery? > There probably should have been an error message of some sort before that > message, perhaps unless it was a result of a selection timeout. If you > boot with -v, you'll see more error output, and that might shed some light > on things. I'm sure Bill will do this, since it just locked up again. > > At which point the machine (obviously) became quite unusable. > > > > Here are the boot messages from the drives/controller: > > > > ahc0: <Adaptec aic7896/97 Ultra2 SCSI adapter> irq 23 at device 9.0 on pci1 > > ahc0: aic7896/97 Wide Channel A, SCSI Id=7, 16/255 SCBs > > ahc1: <Adaptec aic7896/97 Ultra2 SCSI adapter> irq 23 at device 9.1 on pci1 > > ahc1: aic7896/97 Wide Channel B, SCSI Id=7, 16/255 SCBs > > I take it this is an onboard controller? What kind of motherboard is it? > (Intel or AMI? I recall any other quad Xeon boards.) It's actually an Acer X5; the onboard part is an aic7896N > Second, you might want to put your LVD devices on one bus, and your single > ended devices on another, so you can get LVD speeds out of the LVD devices. > That is, unless you've got a 3860 bridge on there, so you can run LVD and > SE on the same bus. (Unlikely, since you've got a 7896.) There is indeed a 3860 in there. For some odd reason, the low-speed bus is bridged off bus A, not bus B on the 7896. > Third, make sure you check your cabling and termination. Remember that LVD > drives don't have terminators, so you have to use a SE device to terminate > the chain on a SE bus, or use the twisty LVD cables with terminator blocks > on the end. The box is as-built by Acer; the internal LVD cabling is all OK, the hotswap bay units are properly terminated and the SE cable has a crimp-on terminator at the end. -- \\ Give a man a fish, and you feed him for a day. \\ Mike Smith \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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