From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Date: Mon, 14 Dec 2009 21:02:01 +0000 Subject: Re: RCU detected CPU 0 stall after panic on sparc64 Message-Id: <20091214.130201.144162604.davem@davemloft.net> List-Id: References: <20091212.014002.173528710.davem@davemloft.net> <20091214202556.GC6679@linux.vnet.ibm.com> In-Reply-To: <20091214202556.GC6679@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: paulmck@linux.vnet.ibm.com Cc: mroos@linux.ee, linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org From: "Paul E. McKenney" Date: Mon, 14 Dec 2009 12:25:56 -0800 > Hmmm... At first glance, it looks like RCU should put a notifier onto > the panic_notifier_list to disable this check. Or is there some global > variable that I can check? Probably the notifier works just fine. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932996AbZLNVCQ (ORCPT ); Mon, 14 Dec 2009 16:02:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932986AbZLNVCE (ORCPT ); Mon, 14 Dec 2009 16:02:04 -0500 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:51262 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932821AbZLNVCA (ORCPT ); Mon, 14 Dec 2009 16:02:00 -0500 Date: Mon, 14 Dec 2009 13:02:01 -0800 (PST) Message-Id: <20091214.130201.144162604.davem@davemloft.net> To: paulmck@linux.vnet.ibm.com Cc: mroos@linux.ee, linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org Subject: Re: RCU detected CPU 0 stall after panic on sparc64 From: David Miller In-Reply-To: <20091214202556.GC6679@linux.vnet.ibm.com> References: <20091212.014002.173528710.davem@davemloft.net> <20091214202556.GC6679@linux.vnet.ibm.com> X-Mailer: Mew version 6.3 on Emacs 23.1 / Mule 6.0 (HANACHIRUSATO) 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: "Paul E. McKenney" Date: Mon, 14 Dec 2009 12:25:56 -0800 > Hmmm... At first glance, it looks like RCU should put a notifier onto > the panic_notifier_list to disable this check. Or is there some global > variable that I can check? Probably the notifier works just fine.