[gentoo-user] [OT] NFSv4: 32-bit server versus 64-bit client?

[walt]

I'm trying to be a good gentoo netizen by nfs-sharing /usr/portage between
my three local gentoo machines, and failing :(

After weeks of fiddling, I discovered today that my problems come from
using a 32-bit machine to serve my two 64-bit NFS clients(!)

(I'll mention up front that NFSv3 works perfectly -- only NFSv4 is bad.)

For reasons I don't know, the 64-bit client machines mount the 32-bit
NFSv4 share with UID/GID 0xffffffe, which won't let even root write to
the rw share.

I googled an old thread mentioning that 0xffff is decimal 65534, a UID
traditionally assigned to the user 'nobody'.

Can anyone else reproduce my problem, or give a hint how to work around
it?

(This list is so quiet today I'm wondering if gmane.org is down.)