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Date:      Fri, 23 Feb 2001 02:08:59 -0800
From:      Kris Kennaway <kris@obsecurity.org>
To:        Julian Elischer <julian@elischer.org>
Cc:        smp@freebsd.org, julian@freebsd.org
Subject:   Re: NETGRAPH broken with witness
Message-ID:  <20010223020859.A4771@mollari.cthul.hu>
In-Reply-To: <3A963410.1C656DB3@elischer.org>; from julian@elischer.org on Fri, Feb 23, 2001 at 01:57:36AM -0800
References:  <20010222231154.A852@mollari.cthul.hu> <3A963410.1C656DB3@elischer.org>

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On Fri, Feb 23, 2001 at 01:57:36AM -0800, Julian Elischer wrote:
> Kris Kennaway wrote:
> >=20
> > Apparently this was never tested: early in the boot phase I get the
> > following panic:
> >=20
> > panic: spin lock netgraph worklist mutex not in order list
> >=20
> > and indeed the witness code appears to have no knowledge of the
> > netgraph spinlocks.
>=20
> so how is it supposed to know?

=46rom what I can gather, you add the locking hierarchy to be enforced
to spin_order_list in kern.mutex.c

Kris

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