From owner-freebsd-net@FreeBSD.ORG Thu Mar 26 19:08:59 2015 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id B2E52AF6; Thu, 26 Mar 2015 19:08:59 +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 9B11EA1C; Thu, 26 Mar 2015 19:08:59 +0000 (UTC) Received: from localhost (unknown [10.1.1.3]) (Authenticated sender: hiren@strugglingcoder.info) by mail.strugglingcoder.info (Postfix) with ESMTPSA id E71AA109C38; Thu, 26 Mar 2015 12:08:58 -0700 (PDT) Date: Thu, 26 Mar 2015 12:08:58 -0700 From: hiren panchasara To: "Andrey V. Elsukov" Subject: Re: pagefault in IPv6 codepath in defrouter_select() Message-ID: <20150326190858.GL53237@strugglingcoder.info> References: <20150325214832.GI53237@strugglingcoder.info> <5514560C.5070406@FreeBSD.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="CeC2K4acttR/mmFn" Content-Disposition: inline In-Reply-To: <5514560C.5070406@FreeBSD.org> User-Agent: Mutt/1.5.23 (2014-03-12) Cc: freebsd-net@freebsd.org, hrs@freebsd.org, nitroboost@gmail.com, markj@freebsd.org 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 19:08:59 -0000 --CeC2K4acttR/mmFn Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable My mailclient is doing something funny. Sorry for that. Trying again to reply to this tread actually. 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 --CeC2K4acttR/mmFn Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (FreeBSD) iQF8BAEBCgBmBQJVFFlKXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRBNEUyMEZBMUQ4Nzg4RjNGMTdFNjZGMDI4 QjkyNTBFMTU2M0VERkU1AAoJEIuSUOFWPt/lo/4H/3xht6rX+NA4XHnw3P9eQnmT S8AYEg2nRk4d6IJOcis+6+z3FI1s5XyQwVtWRQjN8pVN7VaO9EUZ48+iEYGXuPW7 0QpywGskMdM1+jLGcAH/GaahqP7a8NUQi64tdhakrn0hv782Z2+mG7JBiZqbaWV7 FO2+8U4FzlT7KBxlVaoJ3xCKnU0mLkAQKonJzIkNfjQO5dOMnythnfgPEMj+GgJ/ UVQMRU+v+Rw8WBmdirietRVbHem6l9ec/qoR5zYgoNtPwLVCUEYWcnRqtl7ihLgD yvu0Qzoj46W5tVVt9Bf71zGGvTjKMgUkQaudA1CaJk/db9IoIdsswEX/pWAGiaE= =n/BY -----END PGP SIGNATURE----- --CeC2K4acttR/mmFn--