nfs server not responding / is alive again

Bill Moran wmoran at
Tue Oct 5 08:01:35 PDT 2004

"Marc G. Fournier" <scrappy at> wrote:

> On Tue, 5 Oct 2004, Bill Moran wrote:
> > What kind of network topology is between the two machines?  Do you 
> > notice a high load on the hub/switch/routers during these activities? 
> > You may be able to improve the intervening network topology to improve 
> > the problem as well.
> My bad ... I thought i had mentioned it in the original ... the nfs mount 
> is from local machine to local machine, to do what nullfs normally would 
> provide were I to risk it ... namely, to get at the 'bottom layer' of a 
> unionfs based storage system ...

Well ... that's just weird.

I guess the same problem could apply: if the loopback slows down when the
kernel is loaded, it could cause the same effect.

Have you tried forcing TCP mounts?  IIRC, that's what solved the problem
for me.

Bill Moran
Potential Technologies

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