mountd fails intermittently

[Michael Sperber]

Michael Sperber <sperber at informatik.uni-tuebingen.de> writes:

> I'm running 5.4-STABLE (about two weeks old), and have just set up an
> NFS server for the first time.  Remote mounts sometimes work fine, and
> sometimes fail.
>
> The symptoms are that "showmount -e" sez 
>
> showmount: can't do exports rpc
>
> and that "rpcinfo -u <host> mountd" often works fine n times in a row,
> and then stops working, like so:

Turns out that mountd seems to be trying to do reverse DNS
lookups, and when those block, the whole process locks up.  I don't
understand why, though: the servers listed in /etc/exports are by IP.
Any ideas?

-- 
Cheers =8-} Mike
Friede, Völkerverständigung und überhaupt blabla