Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753703Ab3JGXrg (ORCPT ); Mon, 7 Oct 2013 19:47:36 -0400 Received: from mail-vb0-f44.google.com ([209.85.212.44]:40338 "EHLO mail-vb0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753446Ab3JGXrc (ORCPT ); Mon, 7 Oct 2013 19:47:32 -0400 MIME-Version: 1.0 In-Reply-To: References: <20131006082340.GA24568@localhost> <20131007021118.GA27927@localhost> <20131007051038.GA9764@localhost> <20131007083505.GA22585@localhost> Date: Mon, 7 Oct 2013 16:47:29 -0700 X-Google-Sender-Auth: 9BZa_dtFbqn2CsZjYoqIdbIcwnA Message-ID: Subject: Re: [xen] double fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC From: Linus Torvalds To: Fengguang Wu Cc: Russell King - ARM Linux , xen-devel@lists.xenproject.org, Linux Kernel Mailing List , Greg Kroah-Hartman Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 915 Lines: 22 On Mon, Oct 7, 2013 at 3:14 PM, Linus Torvalds wrote: > > I *think* r14 contains the function we're going to jump to in the > oops, and that could be interesting to know, but it's not decoded, so > you'd have to match it up against a symbol map... Actually, Fenguguan, never mind. Instead, change the "pr_debug()" in kobject_release() to "pr_alert()", so that it gets printed out. Or just boot with the "ignore_loglevel" thing so that debug messages are actually visible. At that point, we should be able to match the oops workqueue list address with the address of the delayed kernel object that gets printed out. Linus -- 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/