I can confirm such a bug, and it is not neccessarily related to high loads.
We have a dapper NFS server, and 4 dapper clients.
It seems to be introduced between 2.6.15-26.47 and 2.6.15-28.51.
With the -28.51 kernel, we have frequent (every 15-30 mins) lookups
on the clients. The kern.log on the server is attached.
I can confirm such a bug, and it is not neccessarily related to high loads.
We have a dapper NFS server, and 4 dapper clients.
It seems to be introduced between 2.6.15-26.47 and 2.6.15-28.51.
With the -28.51 kernel, we have frequent (every 15-30 mins) lookups
on the clients. The kern.log on the server is attached.
I'd recommend to bump severity.
Yours,
Steffen