Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756405AbXH2FFZ (ORCPT ); Wed, 29 Aug 2007 01:05:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751435AbXH2FFM (ORCPT ); Wed, 29 Aug 2007 01:05:12 -0400 Received: from extu-mxob-1.symantec.com ([216.10.194.28]:39906 "EHLO extu-mxob-1.symantec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751423AbXH2FFL (ORCPT ); Wed, 29 Aug 2007 01:05:11 -0400 Date: Wed, 29 Aug 2007 06:03:34 +0100 (BST) From: Hugh Dickins X-X-Sender: hugh@blonde.wat.veritas.com To: Alexey Dobriyan cc: Michal Piotrowski , Alexey Dobriyan , torvalds@osdl.org, len.brown@intel.com, ak@suse.de, linux-kernel@vger.kernel.org Subject: Re: 2.6.23-rc4: maxcpus still broken In-Reply-To: <20070829043921.GA1765@martell.zuzino.mipt.ru> Message-ID: References: <20070828111431.GA27707@localhost.sw.ru> <6bffcb0e0708281635v2fdca60bv40099d0583599637@mail.gmail.com> <20070829043921.GA1765@martell.zuzino.mipt.ru> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1544 Lines: 38 On Wed, 29 Aug 2007, Alexey Dobriyan wrote: > On Wed, Aug 29, 2007 at 01:35:57AM +0200, Michal Piotrowski wrote: > > On 28/08/07, Alexey Dobriyan wrote: > > > Every time I try to boot with maxcpus=1 it dies show_stat(): > > > > Is this a regression? > > yep A regression since when, I wonder? Please do NOT waste any time bisecting, but I'd be interested to know which release or -rc you previously found it worked on. When I gave the code a quick look, it appeared to be something which has long been wrong; but I didn't investigate whether per-cpu allocation has changed recently. My _suspicion_, no more than that, is that it might be a regression to you because you're now forced to have CONFIG_HOTPLUG_CPU=y where you didn't need it before. Anyway, it doesn't matter too much what it's a regression since: it's a bug that needs fixing whatever, and should be simple. My x86_64 was running other tests yesterday which I didn't want to interrupt, but I'll take a look later on today. > > > Hugh fixed some issues on x86-64 commit 813409771731d80e6fa94199adf99f2269a4afc0 > > This is 2.6.23-rc4, which has this fix, yes. > > And I have second box with exactly same behaviour: x86_64 E6400, it also has ACPI=n > Turning on ACPI doesn't make it any better, though. Hugh - 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/