nfs client hanging

[Guillaume Rousse]

Talpey, Thomas a écrit :
> At 07:03 AM 6/6/2008, Guillaume Rousse wrote:
>> Hello list.
>>
>> I've got some strange NFS 4 hanging issues between a linux 2.6.24 
>> client, using nfs-utils 1.1.1 (all nfs4 patches applied), and a netapp 
>> filer.
> 
> What version of Data Ontap is running on the Filer? Also, are you
> certain NFSv4 is enabled on it? You can verify these from the filer
> console with the "version" and "options nfs.v4" commands.
7.2.2, we should be upgrading to 7.2.4 today or next week :)

And yes, nfs4 is enabled for sure, we used it without problem with other 
volumes with different kind of usage. The problem began to appears with 
a new volume used for home directories.

> BTW, the first rpc in your trace below is "nfs4", but all the others are
> "nfs3" (which is rather odd since the client shouldn't be falling back).
> What exact mount command are you using?
It's automounter-handled, but it should be something as:
mount -t nfs4 msr-nas1:/vol/msr1_unix/adapt /home/adapt -o 
hard,intr,nosuid,nodev,rw

One potential difference with other mount point is we mount a subset of 
the volume (/vol/msr1_unix/adapt), not the whole volume (/vol/msr1_unix).
-- 
Guillaume Rousse
Moyens Informatiques - INRIA Futurs
Tel: 01 69 35 69 62