Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756026AbaFQLft (ORCPT ); Tue, 17 Jun 2014 07:35:49 -0400 Received: from charlotte.tuxdriver.com ([70.61.120.58]:44568 "EHLO smtp.tuxdriver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752233AbaFQLfr (ORCPT ); Tue, 17 Jun 2014 07:35:47 -0400 Date: Tue, 17 Jun 2014 07:35:32 -0400 From: Neil Horman To: Cong Wang Cc: Stefan Priebe - Profihost AG , Stephen Hemminger , David Miller , bridge@lists.linux-foundation.org, Linux Netdev List , LKML Subject: Re: netconsole breaks netpoll on bridge Message-ID: <20140617113532.GD8539@hmsreliant.think-freely.org> References: <539EE86E.6030806@profihost.ag> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-Spam-Score: -2.9 (--) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 16, 2014 at 11:05:57AM -0700, Cong Wang wrote: > On Mon, Jun 16, 2014 at 5:51 AM, Stefan Priebe - Profihost AG > wrote: > > Hi, > > > > i'm using a vanilla 3.10.43 kernel and netconsole on top of a bridge. > > > > netconsole is used with vmbr0 (bridge) which is on top of bond0. > > > > If i want to add another bridge to vmbr0 is fails as long as netconsole > > is in use. > > > > # brctl addif vmbr0 fwpr2004p0 > > can't add fwpr2004p0 to bridge vmbr0: Unknown error 524 > > > > Kernel output: > > netpoll: (null): fwpr2004p0 doesn't support polling, aborting > > > > If i do rmmod netconsole - everything is working fine again. > > > > This is expected, you can't add an interface which doesn't support > netpoll to a bridge which is running netpoll. > > You should stop netpoll before adding it. Or alternatively, update the driver for the fwpr2004p0 to support netpoll, and you'll be able to add it with netpoll running Neil > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/