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Date:      Thu, 13 Mar 2003 20:26:48 -0800
From:      David Schultz <das@FreeBSD.ORG>
To:        The Hermit Hacker <scrappy@hub.org>
Cc:        Tim Robbins <tjr@FreeBSD.ORG>, freebsd-bugs@FreeBSD.ORG
Subject:   Re: kern/49992: panic: VFS_MOUNT(mp, SCARG(uap, path), SCARG(uap, data), &nd, p);
Message-ID:  <20030314042648.GA18065@HAL9000.homeunix.com>
In-Reply-To: <20030313194252.M1315@localhost>
References:  <200303132220.h2DMK5Cv057649@freefall.freebsd.org> <20030313194252.M1315@localhost>

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Thus spake The Hermit Hacker <scrappy@hub.org>:
> Can you provide me with a means of doing this from the core file(s)?  The
> server that this problem report is from is currently running 128 jails,
> and approx 2400 processes.  I, personally, didn't do anything to cause the
> panic, but I can't tell you what someone was doing in the 128 jails ...
> 
> I've closed the ticket though, since Tor suggested getting rid of the use
> of modules, since Frames 6 and 7 are totally void of information, and he's
> suggested that it might be related to the modules ...

Those question marks won't go away if you compile the modules into
your kernel in this particular case.  VFS_MOUNT is a macro that
calls the function pointed to by mp->mnt_op->vfs_mount, and mnt_op
looks like a junk pointer.

Hopefully this is less mysterious than some of the other problems
you've reported.  I'll see if I can spot anything obviously wrong
this weekend if nobody beats me to it.

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