From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1618FC28CC0 for ; Wed, 29 May 2019 21:53:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DD09624245 for ; Wed, 29 May 2019 21:53:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726250AbfE2Vxa (ORCPT ); Wed, 29 May 2019 17:53:30 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:58221 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726018AbfE2Vxa (ORCPT ); Wed, 29 May 2019 17:53:30 -0400 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 1F38E80302; Wed, 29 May 2019 23:53:18 +0200 (CEST) Date: Wed, 29 May 2019 23:53:27 +0200 From: Pavel Machek To: Jiri Kosina Cc: "Rafael J. Wysocki" , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Josh Poimboeuf , Peter Zijlstra , x86@kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3] x86/power: Fix 'nosmt' vs. hibernation triple fault during resume Message-ID: <20190529215327.GA20914@amd> References: <20190529212519.GA15104@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="tThc/1wpZn/ma/RB" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org --tThc/1wpZn/ma/RB Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed 2019-05-29 23:27:34, Jiri Kosina wrote: > On Wed, 29 May 2019, Pavel Machek wrote: >=20 > > > As explained in > > >=20 > > > 0cc3cd21657b ("cpu/hotplug: Boot HT siblings at least once") > > >=20 > > > we always, no matter what, have to bring up x86 HT siblings during bo= ot at > > > least once in order to avoid first MCE bringing the system to its > > > knees. > >=20 > >=20 > > > Cc: stable@vger.kernel.org # v4.19+ > > > Debugged-by: Thomas Gleixner > > > Fixes: 0cc3cd21657b ("cpu/hotplug: Boot HT siblings at least once") > > > Signed-off-by: Jiri Kosina > >=20 > > Acked-by: Pavel Machek > >=20 > > But I'm less sure if this is -stable material. Is reverting > > 0cc3cd21657be04cb0559fe8063f2130493f92cf in -stable an option? >=20 > Well, without that commit, first MCE to come kills nosmt system. =2E..which is same situation 4.9-stable and 4.14-stable lives with for a long long time, right? But you are right, reverting 0cc3cd21657b does not look like good option :-(. Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --tThc/1wpZn/ma/RB Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlzu/1cACgkQMOfwapXb+vJVUgCffNI3/12a9mauuop60+FR8/z+ MqgAn3S7yVE9nlSWs51frnsmzQ8paI+6 =G4vF -----END PGP SIGNATURE----- --tThc/1wpZn/ma/RB--