From: Frank Filz <ffilzlnx@us.ibm.com>
Subject: Problems with fh_fsid_type=3 exports (device minor id > 255)
Date: Fri, 26 May 2006 11:48:39 -0700
Message-ID: <1148669319.12795.44.camel@dyn9047022153>
Mime-Version: 1.0
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To: NFS List <nfs@lists.sourceforge.net>
Sender: nfs-admin@lists.sourceforge.net
Errors-To: nfs-admin@lists.sourceforge.net

I having a problem with the 2.6.9 kernel and mounting file systems with
a minor device id > 255 where the mount fails. It seems like the file
handle is never cached. We are able to proceed if fsid is specified
in /etc/exports. nfs-utils version is 1.0.6.

Have others seen this problem and is there a fix in a later kernel?

I've been trying to follow the fh_compose and fh_verify code to
understand this, but I don't see where there's a difference between type
3 file handles and type 1 file handles (fsid specified in /etc/exports)
that could cause a problem. When I add a little bit of debug messages, I
see that expkey_parse is being called as a result of a system call for
the type 1 handles, but not for the type 3 handles.

Thanks

Frank Filz


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