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From: Artur Grabowski (art_at_blahonga.org)
Date: Tue Oct 15 2002 - 23:24:18 CDT

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    raphaelresearch.canon.com.au (Andrew Raphael) writes:

    > I have had repeatable
    > panic: lockmgr: LK_RELEASE of unlocked lock
    > on a newly built OPENBSD_3_2 i386 machine that I installed yesterday.
    >
    > I think the problem is related to the NULLFS because if I remove
    > a null mount from /home/www to /var/www the panic doesn't happen.
    > The panic happened whenever I used the "halt" command. I've used
    > null mounts on older installs happily, which is why I tried it
    > again.
    >
    > I've collected all the information suggested by the web site. Is
    > this an interesting bug, or have I missed something?

    Well, it's kind of known that null mounts don't actually work. I want
    to look at that code some day, but this far other things have been more
    important.

    If anyone wants to look at nullfs & co and fix the locking bugs in them,
    you are more than welcome.

    //art