Boot errors since upgrading to Hardy

[Dave M G]

Ubuntu Users,

My laptop has been showing errors while booting up ever since I upgraded 
to Hardy Heron.

I think these are to do with my WiFi network hardware, since getting 
WiFi connections has become unstable since the upgrade.

Of course I looked this up on the web, but when I try to look up 
nlm_udport, Google suggests I should be looking up "nlm_udpport", which 
I don't know if it's the same thing. Is it?

Here are the errors I'm seeing:

May 18 10:02:45 dave-laptop kernel: [   30.443265] lockd: Unknown 
parameter `nlm_udport'
May 18 10:02:45 dave-laptop kernel: [   30.449331] nfs: Unknown symbol 
nlmclnt_proc
May 18 10:02:45 dave-laptop kernel: [   30.450069] nfs: Unknown symbol 
lockd_down
May 18 10:02:45 dave-laptop kernel: [   30.450236] nfs: Unknown symbol 
lockd_up
May 18 10:02:45 dave-laptop kernel: [   30.750055] lockd: Unknown 
parameter `nlm_udport'
May 18 10:02:45 dave-laptop kernel: [   30.776353] nfsd: Unknown symbol 
lockd_down
May 18 10:02:45 dave-laptop kernel: [   30.776423] nfsd: Unknown symbol 
lockd_up
May 18 10:02:45 dave-laptop kernel: [   30.777593] nfsd: Unknown symbol 
get_nfs_grace_period
May 18 10:02:45 dave-laptop kernel: [   30.779344] nfsd: Unknown symbol 
nlmsvc_ops

Any idea what these are related to?

-- 
Dave M G