Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932800AbbGTPKK (ORCPT ); Mon, 20 Jul 2015 11:10:10 -0400 Received: from mail.skyhub.de ([78.46.96.112]:49298 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932314AbbGTPKI (ORCPT ); Mon, 20 Jul 2015 11:10:08 -0400 Date: Mon, 20 Jul 2015 17:10:00 +0200 From: Borislav Petkov To: Joerg Roedel Cc: Joerg Roedel , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86/smpboot: Check for cpu_active on cpu initialization Message-ID: <20150720151000.GB12256@nazgul.tnic> References: <1437038237-16741-1-git-send-email-joro@8bytes.org> <20150720144619.GA9361@nazgul.tnic> <20150720150240.GJ13082@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20150720150240.GJ13082@suse.de> 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 Content-Length: 686 Lines: 19 On Mon, Jul 20, 2015 at 05:02:40PM +0200, Joerg Roedel wrote: > I have seen a report where this happens on bare metal, when the change > to the cpu_active bit becomes visible on the other CPU significantly > later than the the cpu_online bit. This happened on a pretty big machine > with 88 cores. So how about what I proposed at the end of my previous mail? -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply. -- -- 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/