From owner-freebsd-net@FreeBSD.ORG Thu Mar 26 19:03:06 2015 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 2CF0E9E5; Thu, 26 Mar 2015 19:03:06 +0000 (UTC) Received: from mail.strugglingcoder.info (strugglingcoder.info [65.19.130.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 1817C9E8; Thu, 26 Mar 2015 19:03:05 +0000 (UTC) Received: from localhost (unknown [10.1.1.3]) (Authenticated sender: hiren@strugglingcoder.info) by mail.strugglingcoder.info (Postfix) with ESMTPSA id 54743109BAC; Thu, 26 Mar 2015 12:03:04 -0700 (PDT) Date: Thu, 26 Mar 2015 12:03:04 -0700 From: hiren panchasara To: "Andrey V. Elsukov" Message-ID: <20150326190304.GK53237@strugglingcoder.info> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="PoUpPrJlcBv0qM6G" Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) Cc: freebsd-net@freebsd.org, hrs@freebsd.org, nitroboost@gmail.com X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Mar 2015 19:03:06 -0000 --PoUpPrJlcBv0qM6G Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable markj@freebsd.org Bcc:=20 Subject: Re: pagefault in IPv6 codepath in defrouter_select() Reply-To:=20 In-Reply-To: <5514560C.5070406@FreeBSD.org> On 03/26/15 at 09:55P, Andrey V. Elsukov wrote: > On 26.03.2015 00:48, hiren panchasara wrote: > > This is 3rd occurence of this panic. What could be the cause? > > I have vmcore and can provide more info if needed. >=20 > Hi, >=20 > the problem is that ND6 code maintains at least two lists of prefixes > without any locking: V_nd_defrouter and V_nd_prefix. I am not too familiar with the code here but is following relevant here? https://lists.freebsd.org/pipermail/freebsd-net/2013-February/034695.html Also ccing markj@ Cheers, Hiren --PoUpPrJlcBv0qM6G Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iQF8BAEBCgBmBQJVFFfnXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRBNEUyMEZBMUQ4Nzg4RjNGMTdFNjZGMDI4 QjkyNTBFMTU2M0VERkU1AAoJEIuSUOFWPt/lErkH/RG309Y3ZOxD6uUxKe1IT6CS SsmPmk/bBRPNKnuLQRkir6/KuHQzCsfI7QxVMNxvF+9tyTF31CaRTllusBMcb22Q VnGtuLRNmxxwpRP6nEiUvspA6yebynp7LtXHFduS0nEyfGTepvib67QcU88I5hxd ZRomSTg7tDcRrlT//tvRwIUVkuXBDBuNb3heyX7o0+O02A8TII57POGKeaKsdRD+ 4s7TniYOL5lZmUmFUtA7Z4eXeFrTumTfl/emich6kaXS/WWzNIMSp2DuWATxKawK 1mrx1AYrDqw1tmb7g60SMybqOaEN4WKXBiafQoMvzCWWE1ec4P4Lbamwv4ZmCJo= =V6QU -----END PGP SIGNATURE----- --PoUpPrJlcBv0qM6G--