Re: Still getting NFS client locking up

From: Matt Smith (matt_at_xtaz.co.uk)
Date: 11/10/03

  • Next message: Michael W. Lucas: "erroneous message from locked-up machine" 
    Date: Mon, 10 Nov 2003 16:45:01 +0000
To: Robert Watson <rwatson@freebsd.org>

    Robert Watson wrote:

    > I'm fairly baffled. I tried for many hours to reproduce the problem in
    > two seperate sets of systems here, and completely failed. I left
    > buildworlds, cvs updates, blah blah blah, running for 96 hours across
    > pools of clients and servers and no hint of the problem. I also use NFS
    > daily on my primary workstation at work, as well as in my normal
    > development setup with diskless crashboxes. So indeed, there must be some
    > very specific piece of the picture that I'm not reproducing, such as a
    > specific network card, or there's a race condition that requires very
    > specific timing, etc.
    >
    > How fast are your systems, speaking of which? I live in the world of
    > 300-500 mhz machines at work, and 300-800 mhz boxes at home. If you're
    > using multi-ghz boxes, that could well be the distinguishing factor
    > between our configurations...
    >

    <snip>

    client is an intel pentium II 300mhz with 256meg ram and 1gig of swap.
    server is an athlon XP 2200 with 512meg ram and 1gig of swap.

    I can certainly spend some time trying to get some proper debug based on
    what you have said in your email. I shall look into setting up a serial
    console etc.

    In the meantime another piece of information which might be helpful is
    this. Looking at the wtmp to see when I rebuilt my world/kernel I can
    see this:

    reboot ~ Tue Oct 21 20:44
    reboot ~ Wed Oct 15 19:36

    (These times are in BST which is +5 hours from east coast US).

    On the Oct 15th kernel NFS was working perfectly (and before that). From
    the Oct 21st kernel it has always locked up in this way. So something
    between those two dates was commited which broke this for us. Another
    way of me debugging this I guess is to backtrack my world to each date
    in between systematically and find the exact date it breaks and look at
    the commits.

    Matt.

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  • Next message: Michael W. Lucas: "erroneous message from locked-up machine"

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