Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261394AbVD3UQh (ORCPT ); Sat, 30 Apr 2005 16:16:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261414AbVD3UOx (ORCPT ); Sat, 30 Apr 2005 16:14:53 -0400 Received: from fire.osdl.org ([65.172.181.4]:3460 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S261394AbVD3ULd (ORCPT ); Sat, 30 Apr 2005 16:11:33 -0400 Date: Sat, 30 Apr 2005 13:10:27 -0700 From: Andrew Morton To: Oleg Nesterov Cc: axboe@suse.de, linux-kernel@vger.kernel.org, maneesh@in.ibm.com, benh@kernel.crashing.org, jk@blackdown.de Subject: Re: Fw: [Bug 4559] New: cfq scheduler lockup: NMI oops while runningltp - 20050207 on 2.6.12-rc2-mm3 with kdump enabled Message-Id: <20050430131027.16121b8d.akpm@osdl.org> In-Reply-To: <4273BBB4.22EA0EAB@tv-sign.ru> References: <20050429000038.1da6f2e1.akpm@osdl.org> <42737D3A.ABEF2022@tv-sign.ru> <4273BBB4.22EA0EAB@tv-sign.ru> X-Mailer: Sylpheed version 1.0.0 (GTK+ 1.2.10; i386-vine-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 696 Lines: 19 Oleg Nesterov wrote: > > Oleg Nesterov wrote: > > > > One option is to change __mod_timer() so that it would not > > switch ->base when the timer is already running. But this > > would be behavioural change: currently __mod_timer() guarantees > > that the timer would be armed on the local cpu. > > Is it acceptable? If yes, I'll send the patch tomorrow. > > I don't see another solution. I don't see how it could cause any harm. - 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/