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Date: Thu, 25 May 2006 01:19:26 -0400
From: Kris Kennaway <kris@obsecurity.org>
To: Howard Leadmon <howard@leadmon.net>
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Cc: 'Konstantin Belousov' <kostikbel@gmail.com>, freebsd-stable@freebsd.org,
	'Rong-en Fan' <grafan@gmail.com>, 'Kris Kennaway' <kris@obsecurity.org>
Subject: Re: Trouble with NFSd under 6.1-Stable, any ideas?
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On Wed, May 24, 2006 at 11:48:53PM -0400, Howard Leadmon wrote:

> So what's changed at that delta, under the one that works vfs_lookup.c is:
>=20
>  Edit src/sys/kern/vfs_lookup.c
>   Add delta 1.80.2.6 2006.03.31.07.39.24 kris
>=20
>=20
> Under the one that fails the vfs_lookup.c is:
>=20
>  Edit src/sys/kern/vfs_lookup.c
>   Add delta 1.80.2.7 2006.04.30.03.57.46 kris
>=20
>=20
>=20
>  So I stand corrected on my last post, the issue is in fact in this modul=
e, as
> just taking that module back to 1.80.2.6 fixes the problem with my server=
.   I
> even took multiple NFS clients and gave them a heavy workload, and CPU st=
ill
> remained reasonable, and very responsive.  As soon as I rev to the new
> version, NFS breaks badly and even a single client doing something like a=
 du
> of a directory structure results in sluggishness and extreme CPU usage.

Yep, unfortunately this commit was necessary to fix other bugs.  Jeff
said he should have time to look at it next week.

Kris

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