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Date:      Wed, 26 Dec 2007 09:57:45 +0300
From:      "Andrey V. Elsukov" <bu7cher@yandex.ru>
To:        kris@FreeBSD.org
Cc:        freebsd-ipfw@FreeBSD.org, maksim_l@mail.ru
Subject:   Re: kern/118993: [ipfw] page fault - probably it's a locking problem
Message-ID:  <4771FB69.6070900@yandex.ru>
In-Reply-To: <200712251415.lBPEFFtQ005961@freefall.freebsd.org>
References:  <200712251415.lBPEFFtQ005961@freefall.freebsd.org>

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kris@FreeBSD.org wrote:
> State-Changed-When: Tue Dec 25 14:14:45 UTC 2007
> State-Changed-Why: 
> Oops, it was actually a recursive panic and the first one is indeed
> ipfw-related.  The ipfw ruleset would still help though.

I'm not sure that Maxim (a person who got the problem) can
publish his rules. But as i know there is a typical firewall-script
(`ipfw -f flush` and a lot of other rules).

As i see in the code, panic is in the line 2538:

  if (set_disable & (1 << f->set) )
     continue;

I think panic here can be only when "f" is invalid. I'm right?
But it seems protected with IPFW_RLOCK...

-- 
WBR, Andrey V. Elsukov



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