From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Slaby Subject: Re: Fan runs full speed after S3 sometimes (regression) Date: Tue, 10 Aug 2010 20:39:44 +0200 Message-ID: <4C619CF0.30609@gmail.com> References: <4C613619.30309@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-bw0-f46.google.com ([209.85.214.46]:59712 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932504Ab0HJSjt (ORCPT ); Tue, 10 Aug 2010 14:39:49 -0400 In-Reply-To: <4C613619.30309@gmail.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: linux-acpi@vger.kernel.org Cc: Linux-pm mailing list , LKML On 08/10/2010 01:20 PM, Jiri Slaby wrote: > Hi, > > till I was running on 2.6.34-rc5-mm1 (mmotm) and earlier everything was > fine. Now, I'm running 2.6.35-rc6-mm1 (.35-rc5-mm1 was the same) and > sometimes when the computer (desktop) returns from S3, the CPU fan is > running at full speed making a big noise. Just to add, full power cycle is needed to get rid of that. Warm reboot is not enough. > I don't know how to debug that. Bisection is out of question -- it > happens once in 10 or 20 cases. There are no fan entries in /sys. > > The load is as follows: > $ while :; do cat /proc/loadavg; sleep 3; done > 0.37 0.33 0.32 1/325 21358 > 0.42 0.34 0.32 1/325 21362 > 0.42 0.34 0.32 1/326 21366 > 0.38 0.33 0.32 1/330 21386 > 0.38 0.33 0.32 1/331 21391 > 0.35 0.33 0.32 1/331 21394 > 0.32 0.32 0.32 1/331 21397 > 0.32 0.32 0.32 1/331 21400 > 0.30 0.32 0.32 1/331 21403 > ... > > I can boot into 34-rc5 to compare that if this is of relevance. > > 290 kB kernel log since boot over several S3 sleep till now where the > fan is noisy: > http://www.fi.muni.cz/~xslaby/sklad/panics/boot.msg-fan_fullspeed > > Should you need DSDT, it's there too: > http://www.fi.muni.cz/~xslaby/sklad/panics/DSDT > > Any ideas what could have caused this? > > thanks, -- js