From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161404AbWG2Ch3 (ORCPT ); Fri, 28 Jul 2006 22:37:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161405AbWG2Ch3 (ORCPT ); Fri, 28 Jul 2006 22:37:29 -0400 Received: from adsl-70-250-156-241.dsl.austtx.swbell.net ([70.250.156.241]:14505 "EHLO gw.microgate.com") by vger.kernel.org with ESMTP id S1161404AbWG2Ch2 (ORCPT ); Fri, 28 Jul 2006 22:37:28 -0400 Subject: Re: 2.6.18-rc2-mm1 timer int 0 doesn't work From: Paul Fulghum To: Andrew Morton Cc: ak@muc.de, linux-kernel@vger.kernel.org, mingo@elte.hu, ebiederm@xmission.com In-Reply-To: <20060728182450.8f5cbf76.akpm@osdl.org> References: <20060727015639.9c89db57.akpm@osdl.org> <1154112276.3530.3.camel@amdx2.microgate.com> <20060728144854.44c4f557.akpm@osdl.org> <20060728233851.GA35643@muc.de> <1154132126.3349.8.camel@localhost.localdomain> <1154135792.2557.7.camel@localhost.localdomain> <20060728182450.8f5cbf76.akpm@osdl.org> Content-Type: text/plain Date: Fri, 28 Jul 2006 21:37:13 -0500 Message-Id: <1154140633.2714.4.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.6.2 (2.6.2-1.fc5.5) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2006-07-28 at 18:24 -0700, Andrew Morton wrote: > yeah, sorry, that's a known problem which nobody appears to be doing > anything about. The expansion of NR_IRQS gobbles all the percpu memory in > the kstat structure. > > I assume you have a large NR_CPUS? Decreasing it should help. It was using the Fedora Core 5 default of 255. Reducing it to 2 makes it work. So the timer int 0 problem is specific to the machine. I'm guessing that the cheap HP machine using the ATI chipset is one of the boards Andi was talking about. -- Paul