Fatal trap 12: page fault while in kernel mode with samba

Doug White dwhite at gumbysoft.com
Fri Apr 2 17:35:41 PST 2004

On Wed, 31 Mar 2004, Hilko Meyer wrote:

> Doug White schrieb:
> >I haven't had time to look at this.
> >
> >Can y ou try it with -CURRENT, if you ahve't already?
> I can, but I don't want to do that. And it's no longer necessary. I've
> installed the recent update of the samba 2.2.8 port this evening and
> discovered the reason of the panic at the time.

I was able to reproduce this with -current, but looking at the code I
don't understand how that vfs op is getting nulled out. It should be set
to the default operation which just return EOPNOTSUPP.  I guess some
KASSERTs are in order.

The function itself hasn't changed materially in months, so its hard to
tell when this crept in.  Out of curiousity, do you have a -stable box
around, and can you reproduce on that?

Doug White                    |  FreeBSD: The Power to Serve
dwhite at gumbysoft.com          |  www.FreeBSD.org

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