NFS permission problem
In recent HEAD file on NFS mount with mode 600 can't be read by owner.
Problem occur after remount: file can be read just after it is made,
but after umount / mount read fails with Permission denied.
Problem seen when NFS client run HEAD;
NFS server can be HEAD or RELEASE (e.g. 2.2.1).
HEAD of May 4th didn't have problem.
Problem seen both when UFS and HAMMER used on NFS server.
Problem might be introduced by: