kern/92785: Using exported filesystem on OS/2 NFS client causes filesystem freeze

Ulrich Spoerlein uspoerlein at
Fri Dec 15 06:13:03 PST 2006

On 12/15/06, Kostik Belousov <kostikbel at> wrote:
> This looks like lock leak in nfsd. Could you supply the tcpdump of the
> session that causes the problem ? Also, it would be very helpful if you could
> note exact rpc that wedges the server.

That would have been my next step. I ran only rpcbind, nfsd and mountd
on the file server (no rpc.lockd/rpc.statd). I then had an OS/2 Client
mount the filesystem, issue a readdir and then tried to mount the same
share from an Linux client. This last mount request never came back,
immediately after issueing the mount request the mountd got stuck in
state 'ufs' as shown in the backtrace.

A tcpdump of the session can be found at: (9kB)


PS: Please trim the Email when responding to the GNATS DB as that
makes the PR-Trail rather unreadable. Thanks!

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