From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751983AbdANLa6 (ORCPT ); Sat, 14 Jan 2017 06:30:58 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:36625 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751830AbdANLa5 (ORCPT ); Sat, 14 Jan 2017 06:30:57 -0500 Date: Sat, 14 Jan 2017 12:30:54 +0100 From: Pavel Machek To: Woody Suwalski , "Rafael J. Wysocki" Cc: kernel list , tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com Subject: Re: 4.10-rc1: thinkpad x60: who ate my cpu? Message-ID: <20170114113054.GA22012@amd> References: <20170108221721.GB4878@amd> <20170109093001.GA30709@amd> <41553b16-c527-d99b-b56b-31d6a08a7e8a@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="opJtzjQTFsWo+cga" Content-Disposition: inline In-Reply-To: <41553b16-c527-d99b-b56b-31d6a08a7e8a@gmail.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --opJtzjQTFsWo+cga Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! On Thu 2017-01-12 20:19:31, Woody Suwalski wrote: > Pavel Machek wrote: > >Hi! > > > >>I used to have two cpus, and Thinkpad X60 should have two cores, but I > >>only see one on 4.10-rc1. This machine went through many > >>suspend/resume cycles. When backups finish, I'll try -rc2. > >Whoever did it, he seems to have returned the cpu in -rc3. All seems > >to be good now. > Actually since you have mentioned - I have checked my x60 - same problem - > only one CPU. However I was running 4.8.13 with uptime 33 days, multiple > sleep/wake-ups. > Installed a current EOL 4.8.17 and rebooted - I see 2 CPUs. So the issue = is > older then 4.10 kernel, and I suspect it is the CPU hotplug / wakeup > related... Hmm. So I seen two cores in -rc3 after boot. But it is quite well possible that -rc1 was ok just after boot, too, and problem happened sometime later (probably during suspend/resume cycles). Let me go back to -rc1 to check. Best regards, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --opJtzjQTFsWo+cga Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlh6C+4ACgkQMOfwapXb+vLf/ACggzweg9n+7VXxi2DoHBTalybl x4sAoMMqidKQTbZF4+hDr39W6gEEuWK8 =9WER -----END PGP SIGNATURE----- --opJtzjQTFsWo+cga--