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Date:      Mon, 25 Oct 2004 11:23:30 +0200
From:      Joan Picanyol <lists-freebsd-stable@biaix.org>
To:        Robert Watson <rwatson@FreeBSD.org>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: process stuck in nfsfsync state
Message-ID:  <20041025092330.GB39457@grummit.biaix.org>
In-Reply-To: <Pine.NEB.3.96L.1041025093648.91675C-100000@fledge.watson.org>
References:  <20041025002008.GA36161@grummit.biaix.org> <Pine.NEB.3.96L.1041025093648.91675C-100000@fledge.watson.org>

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* Robert Watson <rwatson@FreeBSD.org> [20041025 10:42]:
> 
> On Mon, 25 Oct 2004, Joan Picanyol wrote:
> 
> > [please honour Mail-Followup-To:, no need to keep the crosspost]
> 
> Hmm.  Don't see one of those, maybe it was trimmed by Mailman?

Just checked, must have been. Maybe because it only had -stable@ on
it...

> > Also, doing 'tcpdump -vv -s 192 port nfs' on the client and the server
> > seems support the hypothesis of a locking issue, since I see a write
> > request for the same fh repeating over and over.
> 
> Is there an response to the request?  If not, that might suggest the
> server is wedged, not the client.  If you are willing to share the results
> of a tcpdump -s 1500 -w <whatever> output from a few seconds during the
> wedge, that would be very useful.

Available at http://biaix.org/pk/debug/nfs/ These are from just after
logging in to GNOME until gconfd-2 goes to nfsfsync, and the nfs server
not responding messages start appearing.

> Also useful would be the output of "netstat -na | grep 2049" on the client
> and server

Nothing special, it's the same before and after the wedge (grummit is
the server, calvin the client):

calvin# netstat -na | grep 2049
udp4       0      0  192.168.124.9.943      192.168.124.1.2049
udp4       0      0  192.168.124.9.600      192.168.124.1.2049

joan@grummit:~(0)$ netstat -an | grep 2049
tcp4       0      0  *.2049                 *.* LISTEN
udp4       0      0  *.2049                 *.*

FYI, calvin is an SMP box, debug.mpsafenet=0 and the NIC is an xl.

tks
-- 
pica



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