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Date:      Sat, 5 Mar 2011 17:18:11 -0500 (EST)
From:      Rick Macklem <rmacklem@uoguelph.ca>
To:        Kirill Yelizarov <ykirill@yahoo.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: NFS client over udp
Message-ID:  <502542028.853830.1299363491630.JavaMail.root@erie.cs.uoguelph.ca>
In-Reply-To: <650248.21751.qm@web120514.mail.ne1.yahoo.com>

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> Rick,
> I have good news. I upgraded to 8.2-stable and i ran all four
> different tests (nfs client new and old and over udp and tcp) and
> found that there is no leak in either. ALl of them behave almost the
> same, i couldn't find any difference. The speed i achieved on 1Gb link
> is 52Mb/s. The only difference is that i can't umount new nfs client
> even if there are no processes using this mount point. Thanks for help
> Kirill
> 
Ok, sounds good, although I have no idea what might have plugged
the leak. (I looked at the revision log for clnt_dg.c and udp_usrreq.c
and I couldn't spot anything that might have fixed an mbuf leak.)

As for the "can't unmount", I assume that it reports the mount pt
as busy? (I've never seen this for the exp. client, so I have no idea
what the cause might be for this. Possibly some "failure" code path
that lacks a vput()/vrele() that I've never exercised?)

Anyhow, good to hear about the above, rick



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