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Date:      Mon, 21 May 2001 09:53:23 +0100
From:      David Malone <dwmalone@maths.tcd.ie>
To:        Dima Dorfman <dima@unixfreak.org>
Cc:        mheffner@vt.edu, freebsd-current@freebsd.org, alfred@freebsd.org
Subject:   Re: panic: mutex vm not owned 
Message-ID:   <200105210953.aa74722@salmon.maths.tcd.ie>
In-Reply-To: Your message of "Mon, 21 May 2001 01:44:16 PDT." <20010521084416.6E9763E28@bazooka.unixfreak.org> 

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> > I tried Dima's patch (the one which Alfred has committed) and I
> > get an earlier mutex recursion panic, probably when a local progam
> > that uses shm forks and exits. I scribbled down this trace from
> > it:

> Is there such a program in the base system?

Nope - it's part of a radio refclock for NTP. It doesn't do anything
magic though - just shares a shm segement with ntpd and gets times
from the serial port.

> Attached is an untested patch to try to fix this.  It's almost 02:00
> here and I have to head to bed, but it may work for you.  At least it
> may be a starting point for someone.

I won't be able to apply the patch until I get home from work. Should
I apply it on top of the other patch?

	David.

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