NFS randomly denying permission to files

[Don Allingham <don.allingham@dothill.com>]

I have recently upgraded my NFS (and NIS) server to a newer system.
Unfortunately, this has caused some very strange errors. Certain
directories (such as .mozilla/firefox) will give Permission denied
errors about 50% of the time.

$ ls
8g3rtccm.default  pluginreg.dat  profiles.ini
$ ls
8g3rtccm.default  pluginreg.dat  profiles.ini
$ ls
ls: .: Permission denied
$ ls
ls: .: Permission denied

The client is using the same mount command as before, only with a
different server name. Both the old and new servers are running Ubuntu
6.10 (one is a older P4, the new one is a dual processor Opteron)

The fstab for the client has the line:

vlsi-fs0:/export /home nfs rw,rsize=8192,wsize=8192,intr,hard 0 0

The host export file is pretty simple:

/export *(rw,no_root_squash,sync)

UIDs and GIDs for all files are the same (even though the NIS server
changed as well).

Any ideas on how to debug this problem?

Thanks
Don
 


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