Re: NIC timeouts since upgrade to 4.0

[Jukka Marin <jmarin%embedtronics.fi@localhost>]

On Sun, Mar 23, 2008 at 03:59:52PM +0100, Rhialto wrote:
> I have encountered something like that. What happens in my case is
> that the machine obtains an IP adress via DHCP, which works, and then
> when it mounts a bunch of NFS disk, it starts complaining that the NFS
> servers are down. It usually takes a while before it recovers, and in
> the mean time the machine is pingable so the NIC isn't really down.
> It mutters something about "interrupt moderation is 1000 us".

I have had same kind of NFS problems under 4.0 and xen.  Well, a bit worse:
Ping response time was between 10000 and 15000 ms.  I killed the process
accessing the NFS disk and after a while, network came back alive.

  -jm