a bug in 2.6.24 resulting the client "breaking" ONTAP?

[Timo Aaltonen]

 	Hi

   We are seeing a strange bug which makes all the machines using 
nfs4+krb5i mounts getting "remote io error" notices when trying to access 
the mounts. The servers are a two node Netapp cluster with ONTAP 7.2.4, 
and the problems started last January when I began testing the upcoming 
Ubuntu 8.04 release. I had two machines set up, and at some point all the 
machines (also those using a previous release) would break. Shutting down 
the new machines usually made it work again, but to "fix" the issue I 
rolled back to nfs3 with no krb and forgot about it.

So, now the bug has resurfaced again due to new installations using 
v4+krb5i. Is this something that has been fixed in 2.6.25 or 26-rc's, or 
should it be a server problem? We've used the setup for two years now 
without any similar problems, both on Ubuntu 6.06 and 7.04.

nfs-utils in 8.04 is 1.1.2, kernel 2.6.24.

t