Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755954AbYAHIEw (ORCPT ); Tue, 8 Jan 2008 03:04:52 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750718AbYAHIEp (ORCPT ); Tue, 8 Jan 2008 03:04:45 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:35754 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750711AbYAHIEo (ORCPT ); Tue, 8 Jan 2008 03:04:44 -0500 Date: Tue, 8 Jan 2008 09:04:19 +0100 From: Ingo Molnar To: Hiroshi Shimamoto Cc: mingo@redhat.com, tglx@linutronix.de, hpa@zytor.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86_64: enable irq in default_idle Message-ID: <20080108080419.GD31838@elte.hu> References: <4782984F.3050601@ct.jp.nec.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4782984F.3050601@ct.jp.nec.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0013] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 789 Lines: 25 * Hiroshi Shimamoto wrote: > Hi Ingo, > > I think local_irq_enable() is missing in default_idle() on x86_64. > It's for recent x86 tree. > > From: Hiroshi Shimamoto > Subject: [PATCH] x86_64: enable irq in default_idle > > local_irq_enable() is missing after sched_clock_idle_wakeup_event(). thanks Hiroshi, applied. The effects of this bug should be increased latencies on 64-bit. Did you notice these latencies, or did you find the bug in some other way (code review)? Ingo -- 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/