Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752223AbWCPH3z (ORCPT ); Thu, 16 Mar 2006 02:29:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752224AbWCPH3z (ORCPT ); Thu, 16 Mar 2006 02:29:55 -0500 Received: from fmr20.intel.com ([134.134.136.19]:42455 "EHLO orsfmr005.jf.intel.com") by vger.kernel.org with ESMTP id S1752223AbWCPH3y convert rfc822-to-8bit (ORCPT ); Thu, 16 Mar 2006 02:29:54 -0500 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: 2.6.16-rc5: known regressions [TP 600X S3, vanilla DSDT] Date: Thu, 16 Mar 2006 15:28:47 +0800 Message-ID: <3ACA40606221794F80A5670F0AF15F840B37A72F@pdsmsx403> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: 2.6.16-rc5: known regressions [TP 600X S3, vanilla DSDT] Thread-Index: AcZIxvh5cmjl+S1lTMiwn45d1D/i4QAASHUQ From: "Yu, Luming" To: "Sanjoy Mahajan" Cc: , "Linus Torvalds" , "Andrew Morton" , "Tom Seeley" , "Dave Jones" , "Jiri Slaby" , , , "Brian Marete" , "Ryan Phillips" , , "Brown, Len" , , "Mark Lord" , "Randy Dunlap" , , "Duncan" <1i5t5.duncan@cox.net>, "Pavlik Vojtech" , "Meelis Roos" X-OriginalArrivalTime: 16 Mar 2006 07:28:49.0351 (UTC) FILETIME=[449F9D70:01C648CB] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1085 Lines: 31 >It doesn't hang. Though it seemed close to hanging a couple times, >but after a 5-10 second pause always managed to go to sleep. I tried >about 15 sleep cycles, with a few echo 1 > polling_frequency thrown in. ACPI SPEC define: _PSV : thermal zone object that returns Passive trip point in tenths of digress Kelvin. _ACx: thermal zone object that returns active cooling policy threshold values in tenths of degrees Kelvin. I suspect , when hang, the system was trying to start active cooling with Fan in function acpi_thermal_active that was somehow conflict request with _PTS's call to SMPI in BIOS. So, the solution is : Disable active/passive cooling request before suspend. To verify this, please hack acpi_thermal_active. We need a suspend/resume method for acpi thermal to cleanly solve your problem. Thanks, Luming - 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/