From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760060Ab0I0TJf (ORCPT ); Mon, 27 Sep 2010 15:09:35 -0400 Received: from mail-qy0-f181.google.com ([209.85.216.181]:56673 "EHLO mail-qy0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757175Ab0I0TJd (ORCPT ); Mon, 27 Sep 2010 15:09:33 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=P/V4WFDcuEoi7njKZ7yWSWklAWKXAFmw6Faf6rQWSmkos5OdUeCzHKv0kQpKz7fDJK CKUyDJqUovc1Z7zS1SasvrlNgln/c2Fb2iyrg+sq0lco3wCThs9gOsQN41UQKozBKOdg dK3h4zuXO3zk/s7BEriD10BjrPXx7VHhivwBI= Date: Mon, 27 Sep 2010 15:09:30 -0400 From: tmhikaru@gmail.com To: Greg KH , linux-kernel@vger.kernel.org Subject: Re: Linux 2.6.35.6 Message-ID: <20100927190930.GA7086@roll> References: <20100927003608.GA20395@kroah.com> <20100927163208.GA4892@roll> <20100927175412.GA23347@suse.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="xHFwDpU9dbj6ez1V" Content-Disposition: inline In-Reply-To: <20100927175412.GA23347@suse.de> User-Agent: Mutt/1.4.2.3i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --xHFwDpU9dbj6ez1V Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Sep 27, 2010 at 10:54:12AM -0700, Greg KH wrote: > On Mon, Sep 27, 2010 at 12:32:08PM -0400, tmhikaru@gmail.com wrote: > > I'm not exactly sure what's going on here and I'd like some help > > figuring out what is. For some inexplicable reason, ever since I started > > using the 2.6.35.x series with the 2.6.35.3 release, my loadaverages te= nd to > > bounce anywhere from as low to .2 to 1.5 - constantly, while the machine > > seems idle. >=20 > But .34 doesn't show this issue? >=20 > If so, can you run 'git bisect' between the .34 and .35 releases to find > out where the problem comes in? =2E34 does not, that is correct. >=20 > > Consistently, there are no programs in D state in ps aux output, > > no cpu hogging programs running in top, nothing I can see that should > > explain the bizzarely high load average. >=20 > Loadaverage can be affected by a driver doing an uninteruptable sleep. > This doesn't actually cause a load on the system, but it does affect the > way that number is calcuated. Perhaps that's the problem here. > That would explain a lot. > > If you have any tips or recommendations on what I should use to > > investigate this further, please let me know. Once I have ensured to my= own > > satisfaction that I'm not doing something bizzare that's screwing up my > > machine, I'll make a detailed bug report and start on figuring out how = to > > use git bisect. >=20 > 'man git-bisect' will help with this :) >=20 > thanks, >=20 > greg k-h Thank you for the tips. If I don't find anything obvious I'll bisect it very soon, but I'll likely attempt to track backwards from .3 myself since I've backtracked through patches before. Once I have narrowed it down to a patch release it'll likely take less time to bisect. (eg, if I know it happened between 2.6.35-rc1 and rc2 I'd only have to bisect the patches between those versions, whereas right now I only know positively between 2.6.34 and 2.6.35.3 something went wrong.) Tim McGrath --xHFwDpU9dbj6ez1V Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEVAwUBTKDr6pEncCrqzVruAQJLSgf+P4KzAKCCVEpDhxYz2PCWo//buyP/+gRP APMqLFWHiiyTi+LHWi1pl64AqgHoqUD2Vr0ljz8Cuz28mT5D7bIXZOGBMISr5gUe ReyQxR8zd51ufQF2pm0Hu9r9jyuTM+9iW9tsfQ/o5BpviaZTOERi/17ScuS3GK2h O+/wooLvdpTJHtfHt4WFiK1ZXbt6bCTG8PSRrQuKCPNt9liGrz+lXDW+wt+N9p3t HRPmt6ISDFLG0ZTwzkaUvpKLHpdlF3AA6InHKe5pc8VvLqtFbUi4YdxpmnLXs9mi F297U4UiSKNA61OfxH6kvJLGSJqPjqhkzeN1LF8oYznxpVMElZhP3Q== =0BTF -----END PGP SIGNATURE----- --xHFwDpU9dbj6ez1V--