Date: Fri, 23 Feb 2001 02:47:17 -0800 From: Julian Elischer <julian@elischer.org> To: Kris Kennaway <kris@obsecurity.org> Cc: smp@freebsd.org, julian@freebsd.org Subject: Re: NETGRAPH broken with witness Message-ID: <3A963FB5.995FEA7D@elischer.org> References: <20010222231154.A852@mollari.cthul.hu> <3A963410.1C656DB3@elischer.org> <20010223020859.A4771@mollari.cthul.hu>
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Kris Kennaway wrote:
>
> On Fri, Feb 23, 2001 at 01:57:36AM -0800, Julian Elischer wrote:
> > Kris Kennaway wrote:
> > >
> > > Apparently this was never tested: early in the boot phase I get the
> > > following panic:
> > >
> > > panic: spin lock netgraph worklist mutex not in order list
> > >
> > > and indeed the witness code appears to have no knowledge of the
> > > netgraph spinlocks.
> >
> > so how is it supposed to know?
>
> From what I can gather, you add the locking hierarchy to be enforced
> to spin_order_list in kern.mutex.c
hmm tricky.. I thought initiating the damned thing would insert it.
I have no idea of the correct ordering.
>
> Kris
>
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