From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752116AbdLYKMX (ORCPT ); Mon, 25 Dec 2017 05:12:23 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:45073 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750807AbdLYKMW (ORCPT ); Mon, 25 Dec 2017 05:12:22 -0500 Date: Mon, 25 Dec 2017 11:12:20 +0100 From: Pavel Machek To: vcaputo@pengaru.com Cc: Thomas Gleixner , linux-kernel Subject: Re: thinkpad x60: sound problems in 4.15-rc1 was Re: thinkpad x60: sound problems in 4.14.0-next-20171114 Message-ID: <20171225101220.GB3887@amd> References: <20171127184411.GA22165@amd> <20171214095730.GA6150@amd> <20171219020658.qpvxx7fqvrisezs6@shells.gnugeneration.com> <20171219045415.46croaosad656d5v@shells.gnugeneration.com> <20171219231256.dpizizz55o27op3s@shells.gnugeneration.com> <20171219232212.GA5177@amd> <20171220003610.vogk3wrke47drsfw@shells.gnugeneration.com> <20171223053700.xu2fdir32e4e6cd6@shells.gnugeneration.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="R3G7APHDIzY6R/pk" Content-Disposition: inline In-Reply-To: <20171223053700.xu2fdir32e4e6cd6@shells.gnugeneration.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 --R3G7APHDIzY6R/pk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > It's this allocation domain mask hook which has been bypassed by the > offending commit. The existing approach is more robust in the face of > relaxed adherence to destination cpumasks since it's all-inclusive, > whereas the new code is exclusive to a specific cpu. >=20 > Is it possible what I'm observing is just another manifestation of > what's being described in that comment? This is a core 2 duo, so not > hyper-threaded. But maybe something funny happens when switching > cstates in response to interrupts - like maybe the wrong cpu can be used > if it can save power vs. powering up another? Just thinking out loud > here. >=20 > In any case, 4.15-rc4 is quite unusable on my machine because of this. >=20 > Pavel, do you observe the same behavior on your x60, WRT AC power? No.. no Monitor-Mwait messages, and audio works if I unplug AC. Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --R3G7APHDIzY6R/pk Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlpAzwQACgkQMOfwapXb+vLj5QCfdIvl4+oznZ4V88w2fFVif9vW SEgAnRHthrnADtrZZQh4JcTwxcueiug6 =rA+d -----END PGP SIGNATURE----- --R3G7APHDIzY6R/pk--