Problem with kernel nfs server in 2.4.17-rc1

[Stephan von Krawczynski]

Hello all,

I run constantly in a problem with knfsd (or related) that looks like this:
After several hours clients cannot mount via nfs any more, they get:

db:/usr/src/packages/SOURCES # mount /backup
mount: admin:/p2/backup/db failed, reason given by server: Permission denied

On the server I get:

Dec 17 14:09:54 admin rpc.mountd: getfh failed: Operation not permitted 

This issue can always be solved by simply restarting the kernel nfs server.
Does this sound familiar to anybody? I tend to believe this is yet another
issue with knfsd getting into troubles with failed allocs. I can test whatever,
if someone tells me how and what.

Regards,
Stephan