r245005M: NFSv4 usermapping not working anymore

[O. Hartmann]

Since yesterday's update and buildworld on two FreeBSD 10.0-CURRENT
boxes, i realize a strange behaviour. I have one server exporting via
NFSv4 several ZFS volumes. The UID mapping went pretty well so far, but
with a reboot of yesterday (after a buildworld), files are seen with uid
root:wheel and users are no longer seen.

The server and client in question are

server:   FreeBSD 10.0-CURRENT #2 r245005M: Thu Jan  3 20:25:00 CET 2013
client:	 FreeBSD 10.0-CURRENT #2 r245005M: Thu Jan  3 20:27:25 CET 2013

I think this is not supposed to be that way. Another box, our lab's
server, doesn't show this phenomenon (but at the moment I have only the
opportunity to check with a FreeBSD 9.1-STABLE client). This specific
server is

server-1: FreeBSD 10.0-CURRENT #0 r244957: Wed Jan  2 12:06:13 CET 2013

By the way, can someone give me a hint why some boxes show up with an
attached "M" to the SVN revision number (like r245005M)?

Thanks,

oh

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