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Date:      Tue, 2 Jun 2009 20:24:43 +0200
From:      Arnar Mar Sig <antab@valka.is>
To:        Rick Macklem <rmacklem@uoguelph.ca>
Cc:        freebsd-current@FreeBSD.org, "O. Hartmann" <ohartman@zedat.fu-berlin.de>
Subject:   Re: RPCPROG_MNT: RPC: Timed out / receiving NFS error when trying to mount NFS file system after make world
Message-ID:  <E497D22D-1913-4C57-A359-C310E43B9F4F@valka.is>
In-Reply-To: <Pine.GSO.4.63.0906021146470.19159@muncher.cs.uoguelph.ca>
References:  <4A2504AA.1020406@zedat.fu-berlin.de> <Pine.GSO.4.63.0906021030500.6192@muncher.cs.uoguelph.ca> <4A254194.7080807@zedat.fu-berlin.de> <Pine.GSO.4.63.0906021146470.19159@muncher.cs.uoguelph.ca>

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On Jun 2, 2009, at 5:53 PM, Rick Macklem wrote:
> On Tue, 2 Jun 2009, O. Hartmann wrote:
>
>>
>> Mounting via '-o nfsv3,tcp' in addition, everthing works all right  
>> again. I do not know why udp is invoked automatically by now.
>>
>> But for short, we always did NFS mounts over tcp AND udp, so for  
>> tcp it worked again!
>>
> Hmm, weird. udp mounts work here for me (except NFSv4, where tcp is
> required, but you'd only get that if you had used "-o nfsv4" in your
> mount).
>
> I'll take another look at mount_nfs.c too (already caught a problem I
> introduced in mountd.c). Maybe I unintentionally changed one of the
> defaults. (I think the default is supposed to be nfsv3,tcp but I'll  
> look.)
>
> For udp to work, nfsd must have the "-u" argument. That might be why  
> it
> wouldn't work? (Still doesn't explain why the default was udp and not
> tcp.)
>
> Anyhow, thanks for doing the testing and I'll email again if I find
> that I've screwed up the defaults for mount_nfs too. (Is that a
> "big pointy hat"?:-)


I'm having troubles with nfsroot on avr32 after updating my dev box to  
HEAD on May 31.

I can see MNT RPC packet coming from the avr32 board and running  
mountd -d shows "mountd: mount successful" when the packet is received  
but no answer is transmitted, rpc is sent with udp.
I can mount the same export from my osx workstation when using tcp.

Arnar Mar Sig




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