From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753842AbYKSKRT (ORCPT ); Wed, 19 Nov 2008 05:17:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752870AbYKSKRD (ORCPT ); Wed, 19 Nov 2008 05:17:03 -0500 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:45242 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752816AbYKSKRC (ORCPT ); Wed, 19 Nov 2008 05:17:02 -0500 Date: Wed, 19 Nov 2008 02:17:01 -0800 (PST) Message-Id: <20081119.021701.133290720.davem@davemloft.net> To: mingo@elte.hu Cc: jarkao2@gmail.com, jeff@garzik.org, johannes@sipsolutions.net, wferi@niif.hu, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] netconsole: Disable softirqs in write_msg() From: David Miller In-Reply-To: <20081119101441.GB6184@elte.hu> References: <20081119093004.GD22309@elte.hu> <20081119.014222.193698982.davem@davemloft.net> <20081119101441.GB6184@elte.hu> X-Mailer: Mew version 6.1 on Emacs 22.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ingo Molnar Date: Wed, 19 Nov 2008 11:14:41 +0100 > Thanks! We strengthened/cleaned up the bh checks a tiny bit recently, > maybe that caused this to pop up. It might explain some netconsole > lockups perhaps? Or, the new warning might be bogus. It's a bit of a > maze. See my other reply to Jarek's patch posting, we're supposed to ignore all RX packets in this situation, and all the logic appears to be there, but it's not happening on that person's system for some reason.