I have had very similar problems with a dual Athlon MP servers on Tyan S2468 and S2469 motherboards. I have come to the same conclusion that the delays in nash are related to the U320 SCSI interfaces and have noticed many SCSI reset messages in the log files after running dmesg.
Message: 1 Date: Fri, 10 Sep 2004 12:00:08 +0100 From: Paul Furness <paul.furness@xxxxxxxxxxxxxxx> Subject: Re: Red Hat nash problem To: For users of Fedora Core releases <fedora-list@xxxxxxxxxx> Message-ID: <1094814007.13782.27.camel@xxxxxxxxxxxxxxxxxxxxx> Content-Type: text/plain
Hmmm. It looks like it's taking its time detecting the SCSI devices. All AIC79xx controllers, interestingly enough, although some of the servers are Dell (poweredge 1650, 1750 and 2650s) and some are completely different manufacturers.
Thanks for the tip - I hadn't really though about it and therefore didn't appreciate what "quiet" meant...
On Wed, 2004-09-08 at 14:09, Alexander Dalloz wrote:
Am Mi, den 08.09.2004 schrieb Paul Furness um 10:49:
If it's any help, I've recently done a lot of installs of FC2 on our number crunching cluster and a few workstations, and I've noticed that on a dual CPU system, the boot up appears to hang at the "Red Hat nash..." line for a considerable period - over a minute on many of the systems - before boot up continues normally.
Occasionally - about 1 in 6 new builds - the system does actually hang
at that point (> 30 minutes left to itself), but on all occasions (so
far) a power cycle gets past it.
Paul.
It would be interesting to know what you see when booting with "quiet" mode off. Means erasing the "quiet" parameter from the kernel boot line. This sets the verbosity back to normal.
Alexander
However, power cycling did nothing for mine. Here is another insteresting tidbit of info.... I have one drive with AS-3 installed on it and it shows no problems except of course that it will not recognize my reiserfs RIAD boxes, one drive with FC1 and it works fine except for the nash delays relating to the aic79xx driver, and another drive with FC2 which has a tremendous hang time >15min on nash.
Oh yea... here is the kicker... with SUSE-9.1 all hardware configuration combinations boot fine without any hardware hang ups durring SCSI driver setup. Sadly the people where I work will not allow SUSE, so even I would like to see this aic79xx driver problem fixed for FC2.
Also the nash hang problem only seems to happen when there are any U320 SCSI interfaces involved such as the Tyan S2469 which has U320 and I have tried Adaptec U320 add on cards too, and the aic79xx driver is being loaded.
Bill Cronk
