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Brian Craft wrote:
>
> I'm stumped on an odd nfsroot behavior I'm seeing:
>
> NFS moves at about 8 kbaud. A 1k packet every second or so. It takes
> hours to boot (it's never made it all the way up). This is on 100bT
> media.
>
> This doesn't happen if I boot the client off the hard drive & nfs mount the
> same directories. In that case it runs at a normal speed.
>
> What difference would there be in the networking between nfsroot mounting
> and mounting after the machine is up? On an isolated hub?
>
> Even stranger, on two occasions -- without changing anything -- after running
> slow for about a minute, it suddenly started running at normal speed (and
> went through the boot sequence very quickly until it choked on something
> else I haven't sorted out yet). This sudden change of speed by many orders
> of magnitude seemed completely random.
>
> The client in question is a Versa 486 with a pcmcia Linksys Etherfast 10/100.
> I'm booting from floppy with an initrd that holds the pcmcia & network
> modules.
>
> The server is a 586 with a 3com905.
>
> I've tried this with kernels 2.0.35 and 2.0.36 (on both ends).
>
> Anyone know what could cause this? I've been messing with the NFS parameters,
> but haven't settings which affect this. It appears that the first major
> timeout occurs before anything hits the wire: tcpdump on the server shows
> no activity (not even an ARP) before the 1st "NFS server not responding"
> message (with retrans=3).
>
> b.c.
>
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