From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756232Ab3CDJVk (ORCPT ); Mon, 4 Mar 2013 04:21:40 -0500 Received: from mga11.intel.com ([192.55.52.93]:62346 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755754Ab3CDJVj (ORCPT ); Mon, 4 Mar 2013 04:21:39 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.84,778,1355126400"; d="scan'208";a="294406296" Date: Mon, 4 Mar 2013 17:21:36 +0800 From: Fengguang Wu To: Jan Kara Cc: Johannes Weiner , linux-kernel@vger.kernel.org Subject: Re: [printk A-A deadlock] possible reason: unannotated irqs-on Message-ID: <20130304092136.GA32204@localhost> References: <20130304054254.GA21630@localhost> <20130304091458.GA17223@quack.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130304091458.GA17223@quack.suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 04, 2013 at 10:14:58AM +0100, Jan Kara wrote: > On Mon 04-03-13 13:42:54, Wu Fengguang wrote: > > Greetings, > > > > I got the below oops and the first bad commit is > Thanks for report! BTW, I didn't see any oops in the log, just complaints > from lockdep about a bug in irq handling (which seems to be just a problem > with lockdep turning on-off in vprintk_emit() which I broke). You are welcome! And sorry for the misword.. Thanks, Fengguang