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Date:      Sat, 15 Aug 1998 21:18:16 +0000 (GMT)
From:      Terry Lambert <tlambert@primenet.com>
To:        mark@grondar.za (Mark Murray)
Cc:        current@FreeBSD.ORG
Subject:   Re: NFS and AMD status?
Message-ID:  <199808152118.OAA22828@usr01.primenet.com>
In-Reply-To: <199808151241.OAA13942@gratis.grondar.za> from "Mark Murray" at Aug 15, 98 02:41:34 pm

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> Is it just me, or are others seeing failures in NFS and the AMD?
> 
> NFS sometimes hangs and/or fails to dismount, and the AMD simply does
> not work. All this on a very recent current.

See David Greenman's patches on the -hackers list, in reply to my
"back up one after a sleep and run at it again" patch.  They
appear to stabilize NFS PAGE_BUSY problems.

Also, I will post a patch a little later that result in a dianostic
panic on a page stomp, and a better fix for vm_object_page_remove()
based on discussion with John Dyson about my previous patch.


I'm pretty sure the panic won't be hit (the result of a stomp is an
orphan page, not a page alias), unless you are seeing the "magically
zeroed page" bug.

You will need to compile *with* DIAGNOSTIC and *without* MAX_PERF
to test them, so be forewarned.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.

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