Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932778AbaFPSGB (ORCPT ); Mon, 16 Jun 2014 14:06:01 -0400 Received: from mail-qa0-f52.google.com ([209.85.216.52]:52613 "EHLO mail-qa0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932755AbaFPSF6 (ORCPT ); Mon, 16 Jun 2014 14:05:58 -0400 MIME-Version: 1.0 In-Reply-To: <539EE86E.6030806@profihost.ag> References: <539EE86E.6030806@profihost.ag> Date: Mon, 16 Jun 2014 11:05:57 -0700 Message-ID: Subject: Re: netconsole breaks netpoll on bridge From: Cong Wang To: Stefan Priebe - Profihost AG Cc: Stephen Hemminger , David Miller , bridge@lists.linux-foundation.org, Linux Netdev List , LKML Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. -- 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/