touch and NFS

[Kay Nettle]

We are running the 2.2.16 kernel on all our linux boxes.  They are all 
getting home directory service from a Sun running Solaris 5.7.  One of our 
students noticed that he couldn't touch a file that he had group write
access to.  He gets "Operation not permitted" when he tries.  It looks
like it is only utime() that fails, which causes touch to fail.  It works
between two linux boxes.  It also works between our SGIs, which use v2 
NFS, and the Sun. So it doesn't seem to be a v2/v3 NFS interoperability bug.
Does anyone have a solution to this problem?

Thanks,
Kay

Kay Nettle
Dept. of Computer Sciences
University of Texas at Austin