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Date:      Wed, 29 Oct 1997 13:36:43 +0300
From:      "Mikhail A. Sokolov" <mishania@demos.su>
To:        Steve Passe <smp@csn.net>
Cc:        current@FreeBSD.ORG
Subject:   Re: current/nfs
Message-ID:  <19971029133643.17087@demos.su>
In-Reply-To: <199710281616.JAA23337@Ilsa.StevesCafe.com>; from Steve Passe <smp@csn.net> on Tue, Oct 28, 1997 at 09:16:04AM -0700
References:  <19971028104910.43916@demos.su> <199710281616.JAA23337@Ilsa.StevesCafe.com>

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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 ... 

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:

Thank you.

# Steve Passe

-- 
-mishania, stressed.



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