From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: bridge netfilter output bug on 2.6.39 Date: Tue, 24 May 2011 18:27:37 +0200 Message-ID: <1306254457.3026.69.camel@edumazet-laptop> References: <20110524074156.58eb30f8@nehalam> <1306251543.3026.57.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: David Miller , Herbert Xu , netdev@vger.kernel.org To: Stephen Hemminger Return-path: Received: from mail-ww0-f44.google.com ([74.125.82.44]:35757 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752850Ab1EXQ1l (ORCPT ); Tue, 24 May 2011 12:27:41 -0400 Received: by wwa36 with SMTP id 36so7520670wwa.1 for ; Tue, 24 May 2011 09:27:40 -0700 (PDT) In-Reply-To: <1306251543.3026.57.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: Le mardi 24 mai 2011 =C3=A0 17:39 +0200, Eric Dumazet a =C3=A9crit : > I would say its more likely a problem with dst metrics changes >=20 > In this crash, we dereference a NULL dst->_metrics 'pointer' in > dst_metric_raw(dst, RTAX_MTU); It seems bridge code uses one fake_rtable You probably want to properly init its _metric field. I can do the patch in one hour eventually, if nobody beats me.