From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: 20000+ wake-ups/second in 2.6.24. Bug? Date: Sat, 01 Dec 2007 18:55:48 -0500 Message-ID: <4751F484.6040204@rtr.ca> References: <200711302153.lAULrZ7n026255@imap1.linux-foundation.org> <924EFEDD5F540B4284297C4DC59F3DEE2FAE6A@orsmsx423.amr.corp.intel.com> <20071130142058.816d1693.akpm@linux-foundation.org> <924EFEDD5F540B4284297C4DC59F3DEE2FAEAF@orsmsx423.amr.corp.intel.com> <4750CC78.9070105@rtr.ca> <20071130190227.1976e682@laptopd505.fenrus.org> <4750D180.6080001@rtr.ca> <20071130191816.3e744205@laptopd505.fenrus.org> <4750D585.1030200@rtr.ca> <4750D899.4020905@rtr.ca> <4751F1AB.2060801@rtr.ca> <20071201154646.5a288c9e@laptopd505.fenrus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from rtr.ca ([76.10.145.34]:4466 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752956AbXLAXzu (ORCPT ); Sat, 1 Dec 2007 18:55:50 -0500 In-Reply-To: <20071201154646.5a288c9e@laptopd505.fenrus.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Arjan van de Ven Cc: "Pallipadi, Venkatesh" , Andrew Morton , abelay@novell.com, lenb@kernel.org, rjw@sisk.pl, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org Arjan van de Ven wrote: > On Sat, 01 Dec 2007 18:43:39 -0500 > Mark Lord wrote: > >> Dagnabbit.. it's done it again.. went from 100-200 wakeups/sec >> back up to 20000+ wakeups/sec. This time *with* the powertop patches >> in place. >> >> Somethings broken in there, but I don't know what. >> Or how to make it happen on demand.. it's fine after rebooting again. >> >> ??? >> >> At least now I know to look when I hear the fan turning on >> when the system is otherwise supposed to be idle.. >> >> 2.6.23 did not have this problem. > > actually we have reports of 2.6.23 having the exact same problem. > The thing is, "something" is causing the system to go into a state > where the cpu throws us right out of the C-state the kernel asks for. ... Ahh. Okay, this machine here did not have the problem on 2.6.23. > Some people have seen that not loading yenta at all will just make this > not happen at all... ... No yenta/cardbus here -- it's all PCIe. If you have any debug patches that could detect or help next time I see it, then feel free to toss them this way. Cheers!