From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754733Ab0LAKmy (ORCPT ); Wed, 1 Dec 2010 05:42:54 -0500 Received: from 0x2c.org ([173.203.200.105]:47562 "EHLO 0x2c.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754654Ab0LAKmw (ORCPT ); Wed, 1 Dec 2010 05:42:52 -0500 X-Greylist: delayed 487 seconds by postgrey-1.27 at vger.kernel.org; Wed, 01 Dec 2010 05:42:52 EST Message-ID: <4CF624BC.8030409@0x2c.org> Date: Wed, 01 Dec 2010 11:34:36 +0100 From: Simon Schubert <2@0x2c.org> User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13pre) Gecko/20101101 Lightning/1.0b3pre Lanikai/3.1.7pre MIME-Version: 1.0 To: Eric Dumazet CC: linux-kernel@vger.kernel.org, netdev Subject: Re: BUG in skb_dequeue (skb->next is NULL) References: <1291199299.2856.499.camel@edumazet-laptop> In-Reply-To: <1291199299.2856.499.camel@edumazet-laptop> X-Enigmail-Version: 1.1 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig64F50417063CB7426BAB8271" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig64F50417063CB7426BAB8271 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 12/01/2010 11:28 AM, Eric Dumazet wrote: > Le mercredi 01 d=C3=A9cembre 2010 =C3=A0 09:02 +0000, Simon Schubert a = =C3=A9crit : >> Fr=C3=A9d=C3=A9ric L. W. Meunier <2 pervalidus.net> writes: >=20 > CC netdev >> RIP: 0010:[] [] skb_dequeue+0x59/= 0x90 >> Call Trace: >> [] unix_stream_recvmsg+0x1aa/0x790 >> [] sock_recvmsg+0xfd/0x130 >> [] ? pollwake+0x0/0x60 >> [] __sys_recvmsg+0x144/0x2e0 >> [] ? pollwake+0x0/0x60 >> [] ? finish_task_switch+0x4a/0xd0 >> [] ? schedule+0x411/0xa50 >> [] sys_recvmsg+0x49/0x80 >> [] system_call_fastpath+0x16/0x1b >=20 > Is it reproductible ? I can't trigger it on purpose, but it happened two nights in a row (I don't have the previous backtrace though) > On previous kernel (say 2.6.35) you never hit this bug ? No. cheers simon --------------enig64F50417063CB7426BAB8271 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJM9iTBAAoJEO/hP/rC6EwxDEEQAKFnCRxGTGTu/WTUBLPiJHoQ eID/ft/ZVg0NxFNwjBDQfGhpnuhFsKBGgt17CNvTlWFWZnNkhofjyoETRoqZGON9 BZrPwGjxEvznMf1L6cmqyP4v4d4dFiDTsgFWKzs9rN2F1YRDyMbX96zTsx75Gbs8 yrr8pBRJaAeodD7wGLbR0tvc14Dbep3TRaptxAW+I5C2EkxInwrguix6/mx+chab Dl3K+jkk8tX3oKRtsu52DTuweR0QciWuXKd1lZJwTRbQEmrqUp422yX/qa8LjKAg 1O2v5IQr+NDNPtWMnYCxJuGIFRajTPJLRlx52CK/AHx4040BksLjF+rTaa2Cj4GI npcZ+TG8mmhWrImMeVhkSWOofdAiYeuNP7LIGqFNZpRByP08w3KzlLaWT6UEF2Tg V5BVcnb5UTo8fzSWFe4TcaTb9H1Rrngkmvv89+Rjzy4lMhlSn7wdZHS/jxm2u5WF rknmaiUx2F+8NuT67FQa+QJkIU6XBtWlgQpsvqoJvVOJrnbs7j/MW1V2bp9nXDv3 X+ugmLZiQas1gcr7tmLV13OetXu816RiFsGvKb7PaxkVYx2tI2cBRB55QZfIWWdT 3whgt1nGm6JBUZlXJNMB1fG+h72fVQC51RXO6ptJe7uQUKwE9rgWjxOhgpoma8PT U6BXsgcI6962wV7F+6ZI =8BTF -----END PGP SIGNATURE----- --------------enig64F50417063CB7426BAB8271--