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=-7.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_PASS,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 4E693C04AB1 for ; Mon, 13 May 2019 07:50:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 139EC206BF for ; Mon, 13 May 2019 07:50:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alien8.de header.i=@alien8.de header.b="rPyRgNqQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728214AbfEMHuP (ORCPT ); Mon, 13 May 2019 03:50:15 -0400 Received: from mail.skyhub.de ([5.9.137.197]:33050 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727576AbfEMHuO (ORCPT ); Mon, 13 May 2019 03:50:14 -0400 Received: from zn.tnic (p200300EC2F29E500E0EF2AA1CE3E4EBD.dip0.t-ipconnect.de [IPv6:2003:ec:2f29:e500:e0ef:2aa1:ce3e:4ebd]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id C5E561EC0380; Mon, 13 May 2019 09:50:12 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1557733812; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=6D4CnAScIoeS9pJoUChZMx+t6OGcqUGcrnbQZkMlkII=; b=rPyRgNqQXxs1vWh/ITXiBzXG7D+gWpV4kZLi7Y1THG3sNJi7H+FDRvPBPzUynfBCmuNJge t36Jx9RSqZe9rA9LJ1U8pTgW8DcjNiS+YneBo/fHN9vdxqt7uZEDvYSr+lZU7Kbt+qrhEJ 4AaLvoFPBQV4sSTs6YVwvMVua4hLUFw= Date: Mon, 13 May 2019 09:50:06 +0200 From: Borislav Petkov To: Baoquan He Cc: j-nomura@ce.jp.nec.com, kasong@redhat.com, dyoung@redhat.com, fanc.fnst@cn.fujitsu.com, x86@kernel.org, kexec@lists.infradead.org, linux-kernel@vger.kernel.org, hpa@zytor.com, tglx@linutronix.de Subject: Re: [PATCH v6 1/2] x86/kexec: Build identity mapping for EFI systab and ACPI tables Message-ID: <20190513075006.GB20105@zn.tnic> References: <20190424092944.30481-1-bhe@redhat.com> <20190424092944.30481-2-bhe@redhat.com> <20190429002318.GA25400@MiWiFi-R3L-srv> <20190429135536.GC2324@zn.tnic> <20190513014248.GA16774@MiWiFi-R3L-srv> <20190513070725.GA20105@zn.tnic> <20190513073254.GB16774@MiWiFi-R3L-srv> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190513073254.GB16774@MiWiFi-R3L-srv> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 13, 2019 at 03:32:54PM +0800, Baoquan He wrote: > This is a critical bug which breaks memory hotplug, Please concentrate and stop the blabla: 36f0c423552d ("x86/boot: Disable RSDP parsing temporarily") already explains what the deal is. This code was *purposefully* disabled because we ran out of time and it broke a couple of machines. Don't make me repeat all that - you were on CC on *all* threads and messages! So we're going to try it again this cycle and if there's no fallout, it will go upstream. If not, it will have to be fixed. The usual thing. And I don't care if Kairui's patch fixes this one problem - judging by the fragility of this whole thing, it should be hammered on one more cycle on as many boxes as possible to make sure there's no other SNAFUs. So go test it on more machines instead. I've pushed it here: https://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git/log/?h=next-merge-window -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.