linux-kernel - Re: Poor NFSv4 first impressions

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Date:	Mon, 6 Nov 2006 12:03:54 +0000
From:	"Daniel J Blueman" <daniel.blueman@...il.com>
To:	"Jeff Garzik" <jeff@...zik.org>
Cc:	"Linux Kernel" <linux-kernel@...r.kernel.org>, nfsv4@...ux-nfs.org
Subject: Re: Poor NFSv4 first impressions

Jeff Garzik wrote:
> Being a big user of NFS at home, and a big fan of NFSv4, it was high
> time that I converted my home network from NFSv3 to NFSv4.
>
> Unfortunately applications started breaking left and right.  vim
> noticeably malfunctioned, trying repeatedly to create a swapfile (sorta
> like a lockfile).  Mozilla Thunderbird would crash reproducibly whenever
> it tried anything remotely major with a mailbox, such as compressing
> folders (removing deleted messages).
[snip]

This has all the symptoms to an open EACCES NFSv4 bug in 2.6.18/19.
This is fixed in:

http://www.citi.umich.edu/projects/nfsv4/linux/kernel-patches/2.6.19-rc3-2/linux-2.6.19-rc3-CITI_NFS4_ALL-2.diff
(see http://www.citi.umich.edu/projects/nfsv4/linux/).

With this patch, I can run just great with NFSv4 home dir (etc)
mounts; without, I get the symptom of many 0-byte temporary/lock files
being created and often the inability to create files (!). Be sure to
allow callback delegation connections in through your firewall for the
extra performance ;-) .

Maybe it's too late for these fixes 2.6.19, but they should certainly
make 2.6.19.1 IMHO.
-- 
Daniel J Blueman
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