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Re: crash in in6_cksum
>> In Message <1204020249.458412.921.nullmailer%galant.ukfsn.org@localhost>
at Tue, 26 Feb 2008 10:04:08 +0000 (GMT)
Iain Hibbert <plunky%rya-online.net@localhost> wrote:
> > A bunch of KASSERTs reveal the assertion fails at the second
> > KASSERT in the following piece of code, which begins with the
> > line 346 in revision 1.113.
> So, it seems that pfil_run_hooks() has modified the mbuf chain and left it
> without the complete ip6_hdr addressable, and I'm guessing that since
> ip6_input() already made some effort to pull it up that this is unwanted
> behaviour (though pfil(9) does not say so).
> (I think that the previous versions of in6_cksum() also required this but
> did no validation, I don't know if that means the calculations were
> sometimes wrong.. ?)
I don't understand what mbuf is, it is too difficult for me.
> Is there a way to know which hooks are being run?
I have no idea.
> > # In my kernel, I set PFIL_HOOKS and FAST_IPSEC.
> does this mean that FAST_IPSEC is the packet filter?
Actually, I am just planning to try both of them, so
there is no packet filter rule and no IPSEC configuration.
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