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SubjectRe: "svc: unknown version (3)" when CONFIG_NFSD_V4=y
On Wed, Jan 10, 2007 at 05:01:23PM +1100, Neil Brown wrote:
> On Friday January 5, fengguang.wu@gmail.com 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)
> >
> > Any clues about it?
>
> Weird.
>
> Please try this patch. It should provide more useful information.
>
> NeilBrown
>
> Signed-off-by: Neil Brown <neilb@suse.de>
>
> ### Diffstat output
> ./net/sunrpc/svc.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff .prev/net/sunrpc/svc.c ./net/sunrpc/svc.c
> --- .prev/net/sunrpc/svc.c 2007-01-10 16:58:14.000000000 +1100
> +++ ./net/sunrpc/svc.c 2007-01-10 16:59:55.000000000 +1100
> @@ -910,7 +910,8 @@ err_bad_prog:
>
> err_bad_vers:
> #ifdef RPC_PARANOIA
> - printk("svc: unknown version (%d)\n", vers);
> + printk("svc: unknown version (%d for prog %d, %s)\n",
> + vers, prog, progp->pg_name);
> #endif
> serv->sv_stats->rpcbadfmt++;
> svc_putnl(resv, RPC_PROG_MISMATCH);

root ~# mount localhost:/suse /mnt
[ 132.678204] svc: unknown version (3 for prog 100227, nfsd)

I've confirmed that 2.6.20-rc2-mm1, 2.6.20-rc3-mm1, 2.6.19-rc6-mm1 all
have this warning, while 2.6.17-2-amd64 is good.

Thanks,
Wu
-
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