Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966241AbWKNSH2 (ORCPT ); Tue, 14 Nov 2006 13:07:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S966240AbWKNSH2 (ORCPT ); Tue, 14 Nov 2006 13:07:28 -0500 Received: from mga01.intel.com ([192.55.52.88]:46613 "EHLO mga01.intel.com") by vger.kernel.org with ESMTP id S966243AbWKNSH0 convert rfc822-to-8bit (ORCPT ); Tue, 14 Nov 2006 13:07:26 -0500 X-ExtLoop1: 1 X-IronPort-AV: i="4.09,421,1157353200"; d="scan'208"; a="15731040:sNHT39260547" X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: RE: CONFIG_NO_HZ: missed ticks, stall (keyb IRQ required) [2.6.18-rc4-mm1] Date: Tue, 14 Nov 2006 10:06:37 -0800 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: CONFIG_NO_HZ: missed ticks, stall (keyb IRQ required) [2.6.18-rc4-mm1] Thread-Index: AccIEq4ZKfhzuWXlQzq3GVl7Sude4gABCUqw From: "Pallipadi, Venkatesh" To: "Andreas Mohr" Cc: "Len Brown" , "Ingo Molnar" , "Thomas Gleixner" , , "Van De Ven, Arjan" X-OriginalArrivalTime: 14 Nov 2006 18:06:38.0157 (UTC) FILETIME=[A0FD3FD0:01C70817] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1627 Lines: 50 >-----Original Message----- >From: Andreas Mohr [mailto:andi@rhlx01.fht-esslingen.de] >Sent: Tuesday, November 14, 2006 9:31 AM >To: Pallipadi, Venkatesh >Cc: Len Brown; Ingo Molnar; Andreas Mohr; Thomas Gleixner; >linux-kernel@vger.kernel.org; Van De Ven, Arjan >Subject: Re: CONFIG_NO_HZ: missed ticks, stall (keyb IRQ >required) [2.6.18-rc4-mm1] > >Hi, > >On Tue, Nov 14, 2006 at 09:21:02AM -0800, Pallipadi, Venkatesh wrote: >> >I belive that Venki has looked at some of the HPET >enumeration issues, >> >and maybe he has some suggestions. Is there an example system >> >on-hand where we know Windows works and Linux does not? >> > >> >> There are two things that can be happening when OS does not >see HPET in >> ACPI. >> - BIOS did enable HPET in chipset and did not communicate it to OS. >> - BIOS did nothing to enable HPET in chipset. > >I'm sure you've already seen >http://semthex.freeflux.net/blog/archive/2006/10/21/hpet-to-be- >or-not-to-be.html >... or not? Hmmm.. I hadn't seen this before.. > >Hmm, hopefully it's easy to research where to enable HPET >(if there is one at all!) on an el-cheapo VIA chipset... > >Many thanks for your patch! (even though currently Intel-only) Yes. This should be easy to do for any chipset. It should be documented somewhere in the chipset documentation. Atleast it is documented on ICH specification :). Thanks, Venki - 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/