Re: [PATCH] nfsd: just keep single lockd reference for nfsd

[Chris Vine <chris-TF6qbakwsgc2epGFuHBODCp2UmYkHbXO@public.gmane.org>]

On Fri, 18 Jun 2010 10:30:42 -0400
Jeff Layton <jlayton@redhat.com> wrote:
[snip]
> Thanks for testing them. No oops == improvement!
> 
> ...but it would still be good to know what's wrong here. It sounds
> like something is really odd with loopback communications on this
> box. Is the ipv4 loopback interface up at this time? Do you have any
> iptables stuff set up that might be filtering out portmap
> registration requests from the kernel? What happens if you run
> "rpcinfo"? Does it also hang?
> 
> The kernel uses TCP for talking to portmap these days, so it might
> also be good to see whether you can use rpcinfo to talk to it with
> TCP too...

You are right. Although the lo interface is up, localhost is broken in
2.6.35-rc3. External networking works OK which is why I hadn't noticed.

It looks like some other unrelated bug in 2.6.35 is at work. Quite why
it doesn't strike my Pentium machine I can't say.  The netbook takes its
network address from DHCP (my Pentium does not) but that shouldn't make
any difference to localhost.

I shall do a bit more looking around later today or tomorrow.

Chris