Hi.  I poked around for "OpenSolaris / Mailing Lists / NFS", and this is 
what I found  :)   If this is an inappropriate place for questions, 
please let me know.

I have written a NFSv4 server[1], and am trying to get OpenSolaris 
talking to it.  My server passes citi's newpynfs tests and talks 
successfully to Linux.  However, mounting from OpenSolaris 2008.11 
simply blocks and never returns:

     mount -F nfs -o vers=4 bd:/ /bd

(SIGINT/Ctrl-C return me to shell, as expected)

I tried all manner of URLs and the 'public' option as well, with the 
same results (mount blocks and never returns).

Tracing my NFSv4 server, it never even receives a TCP connection from 
the client.  Nor does snoop "rpc nfs" on the OpenSolaris client show 
anything.

This OpenSolaris/x86 system successfully mounts a Linux NFSv4 server, so 
I know that networking and NFSv4 _do_ work on the OpenSolaris client.

What are the best methods to debug the mount process?

If it matters, my NFSv4 server does not register itself with rpcbind / 
mount / portmap / etc. services.  It just listens on port 2049, and 
processes connections.

Thanks,

     Jeff



[1] http://linux.yyz.us/projects/nfsv4.html

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