From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Lezcano Subject: Re: kernel hangs when removing a dummy netdev with an attached macvlan Date: Tue, 24 Aug 2010 21:14:46 +0200 Message-ID: <4C741A26.5090200@free.fr> References: <4C73F419.2050204@free.fr> <1282669312.2477.262.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Linux Netdev List To: Eric Dumazet Return-path: Received: from mtagate5.de.ibm.com ([195.212.17.165]:43183 "EHLO mtagate5.de.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751805Ab0HXTO6 (ORCPT ); Tue, 24 Aug 2010 15:14:58 -0400 Received: from d12nrmr1607.megacenter.de.ibm.com (d12nrmr1607.megacenter.de.ibm.com [9.149.167.49]) by mtagate5.de.ibm.com (8.13.1/8.13.1) with ESMTP id o7OJEvPC024886 for ; Tue, 24 Aug 2010 19:14:57 GMT Received: from d12av01.megacenter.de.ibm.com (d12av01.megacenter.de.ibm.com [9.149.165.212]) by d12nrmr1607.megacenter.de.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id o7OJEvoB4128946 for ; Tue, 24 Aug 2010 21:14:57 +0200 Received: from d12av01.megacenter.de.ibm.com (loopback [127.0.0.1]) by d12av01.megacenter.de.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id o7OJEu10016752 for ; Tue, 24 Aug 2010 21:14:56 +0200 In-Reply-To: <1282669312.2477.262.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: On 08/24/2010 07:01 PM, Eric Dumazet wrote: > Le mardi 24 ao=C3=BBt 2010 =C3=A0 18:32 +0200, Daniel Lezcano a =C3=A9= crit : > =20 >> Hi all, >> >> I noticed the kernel hangs when we create a dummy interface, assign = a >> macvlan on it and then delete the dummy interface. >> >> How to reproduce: >> >> ip link add dummy0 type dummy >> ip link add mc0 link dummy0 type macvlan >> ip link del dummy0 >> >> =20 > Strange, I could not reproduce it with linux-2.6 current tree > =20 Right, I was not up to date. The bug does no longer appear with the=20 net-next-2.6 git head. Sorry for the noise. -- Daniel