From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759433AbZBXUvi (ORCPT ); Tue, 24 Feb 2009 15:51:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752682AbZBXUv3 (ORCPT ); Tue, 24 Feb 2009 15:51:29 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:53566 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751435AbZBXUv3 (ORCPT ); Tue, 24 Feb 2009 15:51:29 -0500 Date: Tue, 24 Feb 2009 21:51:05 +0100 From: Ingo Molnar To: Tejun Heo , Yinghai Lu Cc: rusty@rustcorp.com.au, tglx@linutronix.de, x86@kernel.org, linux-kernel@vger.kernel.org, hpa@zytor.com, jeremy@goop.org, cpw@sgi.com, nickpiggin@yahoo.com.au, ink@jurassic.park.msu.ru Subject: Re: [PATCHSET x86/core/percpu] improve the first percpu chunk allocation Message-ID: <20090224205105.GA19460@elte.hu> References: <1235445101-7882-1-git-send-email-tj@kernel.org> <20090224201718.GE28772@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090224201718.GE28772@elte.hu> User-Agent: Mutt/1.5.18 (2008-05-17) 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: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Ingo Molnar wrote: > > git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git > > tj-percpu > > ok, i pulled it into tip:core/percpu (one conflict resolution > done - please double check it), and exposed it to -tip testing > briefly. > > Six x86 test-systems failed ;-) One of them had this panic: > > Scan SMP from ffff880000000000 for 1024 bytes. > Scan SMP from ffff88000009fc00 for 1024 bytes. > Scan SMP from ffff8800000f0000 for 65536 bytes. > found SMP MP-table at [ffff8800000fe680] fe680 > PANIC: early exception 0 rip : error cr2 > PANIC: early exception 0 rip : error cr2 Ah, spoke too soon. Bisection gave this commit from Yinghai: dc07da5: x86: check range in reserve_early() Ingo