Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754486AbZLAU1W (ORCPT ); Tue, 1 Dec 2009 15:27:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754385AbZLAU1V (ORCPT ); Tue, 1 Dec 2009 15:27:21 -0500 Received: from mail-ew0-f215.google.com ([209.85.219.215]:58485 "EHLO mail-ew0-f215.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754272AbZLAU1U (ORCPT ); Tue, 1 Dec 2009 15:27:20 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=NQk4qisUsYNLt3AM1Gk8YZaZRnCu+WNfEhPJme4T8feoWcePFnoTBXRnmiQFXEHKwQ e422hP415VkDzA5nWcWhc3BFJ5X/XolSoMVlMZyJp69+HD6kiGcvY2zOQg1JPMarrU0o QNur1kjEtsYH0QHSB+K6aoUpSi8Da+8agXFGA= Message-ID: <4B157C29.6090805@tuffmail.co.uk> Date: Tue, 01 Dec 2009 20:27:21 +0000 From: Alan Jenkins User-Agent: Mozilla-Thunderbird 2.0.0.22 (X11/20090701) MIME-Version: 1.0 To: "Justin P. Mattock" CC: pm list , linux-kernel , Kernel Testers List , Mel Gorman Subject: Re: Bisected: s2disk (uswsusp only) hangs just before poweroff References: <4B1575AC.6080904@tuffmail.co.uk> <4B157B81.9050703@gmail.com> In-Reply-To: <4B157B81.9050703@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3189 Lines: 81 Justin P. Mattock wrote: > On 12/01/09 11:59, Alan Jenkins wrote: >> Hi >> >> Suspend to disk is (sometimes) hanging for me in 2.6.32-rc. I finally >> got around to bisecting it, which blamed the following commit by Mel: >> >> 5f8dcc2 "page-allocator: split per-cpu list into >> one-list-per-migrate-type" >> >> I was able to confirm this by reverting the commit, which fixed the >> hang. I had to revert one other commit first to avoid a conflict: >> >> a6f9edd "page-allocator: maintain rolling count of pages to free from >> the PCP" >> >> -- detail -- >> >> When I suspend my EeePc 701 to disk, it sometimes hangs after writing >> out the hibernation image. The system is still able to resume from this >> image (after working around the hang by pressing the power button). >> This is specific to s2disk from the uswsusp package (which is now >> installed by default on debian unstable). It doesn't happen if I >> uninstall uswsusp and use the in-kernel suspend instead. >> >> The hang doesn't happen if I boot with "init=/bin/bash" and run s2disk. >> Nor does it happen if I boot normally, then switch to single user mode >> ("telinit 12"). >> >> It only happens if I've logged in to KDE. In the past, this has >> indicated a problem in a network driver, since NetworkManager only made >> a connection once I logged in. But it still hangs if I remove both ath5k >> and atl2 before I log into KDE. (I actually tried removing as many >> modules as possible: atl2, ath5k, usbcore, snd-hda-intel, psmouse, >> pcspkr, battery, ac, themal, fan, and eeepc-laptop). Perhaps it's >> something to do with the size of the hibernation image. >> >> -- confidence in the bisection result -- >> >> The randomness was a bit annoying, but it's not too bad. The hang would >> normally show up in the first 3 hibernation cycles; I don't remember >> having to wait more than 6. >> >> I wrote a script to do s2disk + rtcwake so I could leave it testing >> without constantly hitting the power button. This let me test 2.6.32-rc8 >> with the reverts for at least 20 hibernation cycles. >> >> Regards >> Alan >> -- >> 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/ >> > > hmm.. maybe this is what I'm seeing over here > i.g. on my macbook(ati gpu) the first s2ram will > lagg for about 30/40 secs before waking up > then every other cycle afterwards reacts as it should. > Threw in kernels 2.6.30,31 before doing anything > but showed the same results, leading me to beleive maybe > I have some userspace issue(libx86)going on. > > I'll try reverting that commit to see. > > Thanks > > Justin P. Mattock I don't expect so. My problem doesn't affect s2ram. And as far as I can tell, my hang is forever... it's more than just 40 seconds. Regards Alan -- 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/