From owner-freebsd-net@FreeBSD.ORG  Thu Jan  9 11:43:18 2014
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 99CFEC26;
 Thu,  9 Jan 2014 11:43:18 +0000 (UTC)
Received: from cell.glebius.int.ru (glebius.int.ru [81.19.69.10])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id 21F461B0C;
 Thu,  9 Jan 2014 11:43:17 +0000 (UTC)
Received: from cell.glebius.int.ru (localhost [127.0.0.1])
 by cell.glebius.int.ru (8.14.7/8.14.7) with ESMTP id s09BhA8C092833
 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO);
 Thu, 9 Jan 2014 15:43:10 +0400 (MSK)
 (envelope-from glebius@FreeBSD.org)
Received: (from glebius@localhost)
 by cell.glebius.int.ru (8.14.7/8.14.7/Submit) id s09BhAKS092832;
 Thu, 9 Jan 2014 15:43:10 +0400 (MSK)
 (envelope-from glebius@FreeBSD.org)
X-Authentication-Warning: cell.glebius.int.ru: glebius set sender to
 glebius@FreeBSD.org using -f
Date: Thu, 9 Jan 2014 15:43:10 +0400
From: Gleb Smirnoff <glebius@FreeBSD.org>
To: Guy Yur <guyyur@gmail.com>
Subject: Re: 10.0-RC1, armv6: "pfctl -s state" crashes on BeagleBone Black
 due to unaligned access
Message-ID: <20140109114310.GU71033@FreeBSD.org>
References: <CAC67Hz_QXcHHSFOLLgUGqLWRQpzhRRv_b+WGMMQsfk-VQp74RA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAC67Hz_QXcHHSFOLLgUGqLWRQpzhRRv_b+WGMMQsfk-VQp74RA@mail.gmail.com>
User-Agent: Mutt/1.5.22 (2013-10-16)
Cc: freebsd-net@freebsd.org, freebsd-arm@freebsd.org
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net/>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 09 Jan 2014 11:43:18 -0000

  Guy,

On Sat, Jan 04, 2014 at 03:06:02PM +0200, Guy Yur wrote:
G> sizeof(struct pfsync_state_key) is 36
G> sizeof(struct pfsync_state_peer) is 32
G> sizeof(struct pf_addr) is 16
G> sizeof(struct pfsync_state) is 242

I am also afraid that the pfsync(4) itself isn't alignment safe. And
receiving and processing a pfsync packet with couple of states would
panic an arm box.

Is it possible for you to check this?

-- 
Totus tuus, Glebius.