Date: Fri, 31 Oct 1997 17:20:45 +0300 (MSK) From: bag@sinbin.demos.su (Alex G. Bulushev) To: smp@csn.net Cc: current@FreeBSD.ORG, mishania@demos.su Subject: Re: current/nfs Message-ID: <199710311420.RAA02226@sinbin.demos.su> In-Reply-To: <19971029133643.17087@demos.su> from "Mikhail A. Sokolov" at "Oct 29, 97 01:36:43 pm"
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> On Tue, Oct 28, 1997 at 09:16:04AM -0700, Steve Passe wrote: > # Hi, > # > One machine runs 19971011-current and 'hangs' pretty regularily, then > # > tries to reboot, tries to sync and there hangs. The machine has pretty hard > # > task to be an nfs server for 5 others with up to 6000 interrupts/second, > # > motherboard is intel PR440FX, 2xppro200, there are enough swap/memory space. > # > # be more specific, what messages come out when it hangs/reboots? > > 'Cannot switch to CPU 0' \n 'Syncing disks' (or what's that message..) and > won't reboot. That's last one I caught yesterday, all other cases were just > 'Syncing' and there we stale. Now I made it non-SMP :-(, awaiting ... now we use identical 4 fbsd boxes with intel pr440fx, each with 2 intel EE/100 100base-T full-duplex, one is nfs server and 3 nfs clients nfs clients works fine with 3.0-971011 and 971012-SNAP kernel/SMP nfs server hangs 1-3 times a day with SMP kernel 971011 and 971012 latest src's not tested ... with nonSMP kernel 971012 it works without troubles: 5:14ÐÐ up 3 days, 1:01, 23 users, load averages: 0.47, 0.54, 0.56 > > Btw, what's that when it has 2 cpu's, the average load is _always_ >1,3, where > when the second processor is not enabled, it's _always_ (exept when they > start some perl :-)) > 0,60 ? > > It's peer (2.2.2+security fixes) would casually yelp that nfs server is not > responding, the find it (in a second or so) and finally hang in a frozen > state with a 'nfsbiostat panic'. > > > #> yell it can't start second CPU, - mp_lock 1000005, abort trap. It will do ok > #> on 233Mhz with 19971011-current, as well as 970926-SNAP. > > # this is probably the race fixed by: with 971012-SNAP it works on 200 and 233 MHz, thanks ... Alex. > > Thank you. > > # Steve Passe > > -- > -mishania, stressed. >
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