Re: "svc: unknown version (3)" when CONFIG_NFSD_V4=y

[Neil Brown <neilb@suse.de>]

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);