Kernel NFS and solaris machines

Jonathan Corbet (corbet@atd.ucar.edu)
Tue, 04 Aug 1998 16:41:09 -0600


I'm trying once again to get kernel NFS working here... Good NFS is one
thing we really need in 2.2.

So, it works great with Linux clients. I get ~800kb/sec read performance,
which isn't quite what I would like but it's a start. Write performance is
much worse.

However, mounts from Solaris hosts do not work at all. The Solaris side
tells me:

nfs mount: lucy: NFS service not responding

On the Linux server side, I see (in messages):

Aug 4 16:19:54 lucy mountd[4104]: authenticated mount request from ale.atd.ucar.edu:857
Aug 4 16:19:54 lucy kernel: nfsd: connect from unprivileged port: 8075500f:40357<4>nfsd: accept failed (err 11)!
Aug 4 16:19:54 lucy kernel: nfsd: accept failed (err 11)!
Aug 4 16:19:54 lucy kernel: svc: unknown version (3)

This happens whether I try an explicit mount, let amd do it, or let Sun's
autofs do it. Very similar things happen when mounting from an Irix 6
host.

Sometimes instead I see:

Aug 4 16:31:32 lucy kernel: nfsd: unauthenticated request from (8075501c:795)

>From the Sun side I can make the mount work by tossing in a '-o vers=2' to
explicitly ask for an NFS v2 mount. This is *supposed* to happen by
default, I'm not sure why it doesn't work that way..

I assume that, at this point, NFS v3 isn't going to happen for 2.2. That's
unfortunate, as Linux would be more readily accepted in large network
environments with that feature. If only I had the time to work on it...

jon

Jonathan Corbet
National Center for Atmospheric Research, Atmospheric Technology Division
corbet@atd.ucar.edu http://www.atd.ucar.edu/rdp/jmc.html

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