linux-kernel - Re: "svc: unknown version (3)" when CONFIG_NFSD

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Message-ID: <20070105124822.GA7901@mail.ustc.edu.cn>
Date:	Fri, 5 Jan 2007 20:48:22 +0800
From:	Fengguang Wu <fengguang.wu@...il.com>
To:	Trond Myklebust <trond.myklebust@....uio.no>
Cc:	Neil Brown <neilb@...e.de>,
	linux-kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: "svc: unknown version (3)" when CONFIG_NFSD_V4=y

On Fri, Jan 05, 2007 at 01:25:39PM +0100, Trond Myklebust wrote:
> On Fri, 2007-01-05 at 10:42 +0800, Fengguang Wu wrote:
> > Hi Neil,
> > 
> > NFS mounting succeeded, but the kernel gives a warning.
> > I'm running 2.6.20-rc2-mm1.
> > 
> > # mount -o vers=3 localhost:/suse /mnt
> > [  689.651606] svc: unknown version (3)
> > # mount | grep suse
> > localhost:/suse on /mnt type nfs (rw,nfsvers=3,addr=127.0.0.1)
> 
> Are you perhaps running the userland NFS server instead of knfsd? The
> former will only support NFSv2.

I'm running kernel nfs servers:

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root      5451  0.0  0.0      0     0 ?        S    19:30   0:00 [nfsd]
root      5452  0.0  0.0      0     0 ?        S    19:30   0:00 [nfsd]
root      5453  0.0  0.0      0     0 ?        S    19:30   0:00 [nfsd]
root      5454  0.0  0.0      0     0 ?        S    19:30   0:00 [nfsd]
root      5455  0.0  0.0      0     0 ?        S    19:30   0:00 [nfsd]
root      5456  0.0  0.0      0     0 ?        S    19:30   0:00 [nfsd]
root      5457  0.0  0.0      0     0 ?        S    19:30   0:00 [nfsd]
root      5458  0.0  0.0      0     0 ?        S    19:30   0:00 [nfsd]
root      5449  0.0  0.0      0     0 ?        S<   19:30   0:00 [rpciod/0]
root      5450  0.0  0.0      0     0 ?        S<   19:30   0:00 [rpciod/1]
root      5462  0.0  0.0   7940   672 ?        Ss   19:30   0:00 /usr/sbin/rpc.mountd
statd     5527  0.0  0.0   7892  1084 ?        Ss   19:30   0:00 /sbin/rpc.statd
root      5538  0.0  0.0  23168   764 ?        Ss   19:30   0:00 /usr/sbin/rpc.idmapd

My system is Debian etch. And I just found that CONFIG_NFSD_V4 is irrelevant,
the message remains even if it is disabled. I'll check more kernel versions.

Thanks,
Wu
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