Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756783AbZDTTrj (ORCPT ); Mon, 20 Apr 2009 15:47:39 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754840AbZDTTr3 (ORCPT ); Mon, 20 Apr 2009 15:47:29 -0400 Received: from e7.ny.us.ibm.com ([32.97.182.137]:42991 "EHLO e7.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754671AbZDTTr2 (ORCPT ); Mon, 20 Apr 2009 15:47:28 -0400 Date: Mon, 20 Apr 2009 12:47:23 -0700 From: Gary Hade To: Masami Hiramatsu Cc: Gary Hade , mingo@elte.hu, mingo@redhat.com, x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: BUG from text_poke() during CPU offlining Message-ID: <20090420194723.GB7106@us.ibm.com> References: <20090408201107.GA11159@us.ibm.com> <49DD073E.4050804@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <49DD073E.4050804@redhat.com> User-Agent: Mutt/1.5.17+20080114 (2008-01-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1421 Lines: 42 On Wed, Apr 08, 2009 at 01:21:18PM -0700, Masami Hiramatsu wrote: > Hi Gary, > > Gary Hade wrote: > > I ran into the below BUG with 32-bit 2.6.30-rc1 while offlining > > all of the offlineable CPUs. It happened when the last offlineable > > CPUs was being offlined. The problem disappeared after I reverted > > the following two patches. > > - x86: implement atomic text_poke() via fixmap > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=78ff7fae04554b49d29226ed12536268c2500d1f > > - x86: expand irq-off region in text_poke() > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=7cf49427042400d40bdc80b5c3399b6b5945afa8 > > Hmm, this bug seems that the same bug I reported recently. > > http://lkml.org/lkml/2009/4/4/71 > > I'm working on that. Masami, Just confirming that I can no longer reproduce the problem with 2.6.30-rc2 which includes your fix (http://lkml.org/lkml/2009/4/10/346). > > Thank you for reporting! Thank you for fixing! Gary -- Gary Hade System x Enablement IBM Linux Technology Center 503-578-4503 IBM T/L: 775-4503 garyhade@us.ibm.com http://www.ibm.com/linux/ltc -- 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/