Date: Sat, 15 Nov 1997 09:33:42 -0500 From: Mike Hoskins <mike@seidata.com> To: bicknell@ufp.org, freebsd-hackers@freebsd.org Subject: Re: AHC / SCSI Problem? Message-ID: <346DB2C6.B13C80EC@seidata.com> References: <199711131520.KAA09225@ussenterprise.ufp.org>
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Leo Bicknell wrote: > We've been having some problems here with FreeBSD, > Adaptec 2940's, and various disk drives. I think we're <snip> > I do find it interesting that it happens on the Micropolis > 4221 disks. Perhaps there is something "special" about them. I would like to hear feedback relating to Adaptec's 2940 controller and Micropolis drives myself... What is the status? Are there still any bug(s) being worked out? We're running a dual Pentium Pro 200 with an Adaptec 2940 and two 4221s. Some time ago, we tried the 3.0 SMP kernel and had a serious problem... random reboots. This is a primary DNS box and we've since reverted back to 2.2.5-STABLE for a key feature - reliability. ;) > I have a theory myself that turning on TAGENABLE and > SCBPAGING_ENABLE might actually help this situation, but > I'm not going to try it unless an expert thinks this is a > good idea as well. These are both production machines, so > experimenting is a problem, but if we have some good leads > we can do some work to track this down. TAGENABLE was definately recommended to us (I think it may have even been a BSD team member?), and possibly SCBPAGIN_ENABLE. The powers that be, however, decieded to revert to STABLE until "all SMP problems are ironed out", so we never gave it a try. I've heard that the problems we were encountering have been fixed, but I'd like to be selfish and see if someone else running the same setup gets lucky before I give it a go again. <g> --- Mike Hoskins SEI Data Network Services, Inc. mike@seidata.com
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