Date: Tue, 19 Mar 1996 23:31:17 -0800 (PST) From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com> To: gibbs@freefall.freebsd.org (Justin T. Gibbs) Cc: mrl@teleport.com, current@Freebsd.Org Subject: Re: aic7xxx driver problem with wide and narrow busses attached. Message-ID: <199603200731.XAA22233@GndRsh.aac.dev.com> In-Reply-To: <199603200707.XAA08756@freefall.freebsd.org> from "Justin T. Gibbs" at Mar 19, 96 11:07:01 pm
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> > >> > >> > >> Disable parity detection in SCSI-Select. I'm still trying to > >> track down why this happens on machines that have both a > >> Wide and narrow bus attached. (Hey Rod... care to lend me > >> a wide disk again? 8-) > >> > >I'll have to do some house cleaning... my spare wide drive is a bit > >full of data right now: > >/dev/sd1a 2088244 1936934 -15750 101% /B > > > >> I'll turn parity error checking off again in the driver for now. > > > >I'll slap a narrow disk on my 2940W and see if I can duplicate it > >here, if it does duplicate I'll see about getting this data rolled > >out to other disks and get it down to you for a debug session... > > It may only occur on the 7880 based controllers. Do you have any > older 2940Ws around? The only 2940W I have is: ahc0 <Adaptec 2940 SCSI host adapter> rev 3 int a irq 11 on pci0:12 ahc0: aic7870 Wide Channel, SCSI Id=7, 16 SCBs I don't currently have any 2940UW's. > >Should I be able to duplicate this in -stable, or does this problem > >only seem to be occuring with -current? > > I only enabled parity checking for the aic78X0 family recently in > -current. I didn't even think much about it since it was an > oversight that it wasn't enabled before and it has been enabled > for some time on the aic7770 chips. The setting tracks what is > set in SCSI-Select so its easy to change. I should have the -current > driver pulled back into -stable soon (minus the parity stuff). I'll > send you a private patch to enable the parity once I do this. Okay, but make sure that commit message to -stable clearly states that if you suddenly see SCSI problems on aic7xxx based systems to turn off parity in the SCSI-Select menu and report the problem. -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Reliable computers for FreeBSD
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