linux-kernel - Re: Odd log message associated with NFS

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Date:	Wed, 28 Mar 2007 12:19:52 +1000
From:	Neil Brown <neilb@...e.de>
To:	dl8bcu@...bcu.de
Cc:	Phy Prabab <phyprabab@...il.com>, nfs@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: Re: Odd log message associated with NFS

On Tuesday March 27, dl8bcu@...bcu.de wrote:
> On Tue, Mar 27, 2007 at 11:40:48AM -0700, Phy Prabab wrote:
> > Hello,
> > 
> > I am currently running 2.6.21-rc5 and I am seeing quite a bit of this
> > message in my log files:
> > kernel: rpcsvc: received unknown control message:-2144992132/-1
> > 
> > This machine is an dual dual core opteron with 3Ware 9650 (14 disk
> > RAID10), 4G RAM, 64bit kernel, nfsutils-1.0.12 running knfsd.  This
> > machine is a  file server.
> 
> Just a 'me, too':

For the 'unknown control message' messages,
see:   "fix typo in svc_udp_recvfrom"  previously on
nfs@...ts.sourceforge.net.

Fix is in -mm and below.

For "svc: bad direction" .... Don't know... garbage on the net maybe?
Or maybe not.  I have seen something like that before, but haven't
been able to pin it on anything yet.
NeilBrown


--- linux-2.6.orig/net/sunrpc/svcsock.c
+++ linux-2.6/net/sunrpc/svcsock.c
@@ -779,7 +779,7 @@ svc_udp_recvfrom(struct svc_rqst *rqstp)
 	}
 
 	clear_bit(SK_DATA, &svsk->sk_flags);
-	while ((err == kernel_recvmsg(svsk->sk_sock, &msg, NULL,
+	while ((err = kernel_recvmsg(svsk->sk_sock, &msg, NULL,
 				      0, 0, MSG_PEEK | MSG_DONTWAIT)) < 0 ||
 	       (skb = skb_recv_datagram(svsk->sk_sk, 0, 1, &err)) == NULL) {
 		if (err == -EAGAIN) {


> 
> Mar 16 16:57:06 Marvin kernel: svc: bad direction 268435456, dropping request
> Mar 16 17:58:19 Marvin kernel: svc: bad direction 268435456, dropping request
> Mar 16 19:55:49 Marvin kernel: svc: bad direction 268435456, dropping request
> ...
> Mar 17 04:30:03 Marvin kernel: svc: bad direction 268435456, dropping request
> Mar 17 06:28:52 Marvin kernel: pppd(795): unaligned trap at 0000020000207f90: 000000011fd8d33d 29 1
> Mar 17 06:28:55 Marvin kernel: inet_sk_reselect_saddr(): shifting inet->saddr from 82.149.xxx.xxx to 89.166.xxx.xxx
> Mar 17 09:05:21 Marvin kernel: rpcsvc: received unknown control message:-1024/186028080
> Mar 17 14:17:04 Marvin kernel: rpcsvc: received unknown control message:-1024/186028040
> Mar 17 14:17:31 Marvin kernel: rpcsvc: received unknown control message:-1024/186028040
> Mar 17 14:49:14 Marvin kernel: rpcsvc: received unknown control message:-1024/186028080
> Mar 17 14:49:15 Marvin kernel: rpcsvc: received unknown control message:-1024/186028040
> 
> 
> 
> This is from my little 'server', alpha ev4 'noname', 2.6.21-rc3, compiled 
> with gcc 4.1.2
> 
> client is mostly an alpha ev6 2.6.21-rc3, gcc 4.1.2.
> 
> Apart from the messages NFS seems to run just fine currently.
> 
> Bye,
> Thorsten 
> 
> 
> 
> -- 
> | Thorsten Kranzkowski        Internet: dl8bcu@...bcu.de                      |
> | Mobile: ++49 170 1876134       Snail: Kiebitzstr. 14, 49324 Melle, Germany  |
> | Ampr: dl8bcu@...lj.#rpl.deu.eu, dl8bcu@...vin.dl8bcu.ampr.org [44.130.8.19] |
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