Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp4942740yba; Mon, 13 May 2019 02:30:29 -0700 (PDT) X-Google-Smtp-Source: APXvYqySlY1GlZFreTOYKZcg2U62tiPi3uquuNZiRnIAJCK9ia1fjwP0I24FOb361uGf2OSFcAD1 X-Received: by 2002:a17:902:b581:: with SMTP id a1mr29077880pls.206.1557739829863; Mon, 13 May 2019 02:30:29 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1557739829; cv=none; d=google.com; s=arc-20160816; b=lC3I3PKZKjlniar14z4Eyv8vMwIpzLpi7s1Vz8v/u4Ac9MSlG8bzbkMdsXCgidRUqI 7qmJBwX3oWGqAmiY4eMlD/yGAKTx4kVzHDwjpVLje7nw6FCdcxSs+V3SOX8n0AuE7+Nw WeMF2GrMDYSL2zjL1i/bLvJJ0+2ctuV5oBlwSBa8uxwgP53+eBfys6F7LA4lpxKQGtQB Wvd919rrrG1JARfFV9o0FFxzpWSjRVjYZDm9+8paux8LS0HLJP7Rz0j1rV+Op0aDS5cQ tI9crEYprVsqnx5GHKbA4RXTRK4fbB5pbJPdxvemSOmnIN4L2zLquxjGxTyC/t9ApYQb OEBg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=e+P0gTnG/v/vROSW5PtNh3OQ6VP+/RxOmDyzFe6imjA=; b=MNE8qc0naECS5s6yZdakfFDP+28Eio2p0Ahds6wE+S2htaRWih8f4ufW47H12mYoG7 hcK2zcDNqs3ja6Zub99kM8hsv0N37xcTVlhQvsUS8O+pKRIlp8FH3nRxptrIVyzLTtqL 28X8KwZSLZqQIdnYLKKLIDz8Y+SIdRHWdP4eUqsEKxNymMDiBAhFM1yGr+OcrvbEepRW 6swkvww11nqdqED7J7KbRYoLrdo82YxULUkIzsy50J173naD/K7ju5NC8tI123UDaMrb 9m5j5KitmL6gPZA1ctGR8pOl/zF0fUBhc/Swk+Us6zTMUV0AVKxy2/xU8FfIGwhiX7ED UcYw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t61si17653579plb.309.2019.05.13.02.30.13; Mon, 13 May 2019 02:30:29 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727572AbfEMHdA (ORCPT + 99 others); Mon, 13 May 2019 03:33:00 -0400 Received: from mx1.redhat.com ([209.132.183.28]:42908 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726748AbfEMHdA (ORCPT ); Mon, 13 May 2019 03:33:00 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2BFDF307D8E3; Mon, 13 May 2019 07:33:00 +0000 (UTC) Received: from localhost (ovpn-12-31.pek2.redhat.com [10.72.12.31]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 7CC251001DC0; Mon, 13 May 2019 07:32:56 +0000 (UTC) Date: Mon, 13 May 2019 15:32:54 +0800 From: Baoquan He To: Borislav Petkov 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: <20190513073254.GB16774@MiWiFi-R3L-srv> 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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190513070725.GA20105@zn.tnic> User-Agent: Mutt/1.10.1 (2018-07-13) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Mon, 13 May 2019 07:33:00 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/13/19 at 09:07am, Borislav Petkov wrote: > Baoquan, > > On Mon, May 13, 2019 at 09:43:05AM +0800, Baoquan He wrote: > > Can this patchset be merged, or picked into tip? > > what is this thing that happens everytime after a kernel is released and > lasts for approximately 2 weeks? This is a critical bug which breaks memory hotplug, since KASLR is enabled by default in upstream, and in our distros too. You can see that Junichi posted the patch after NEC must have tested the code and found the new issue. And Chao from FJ also worked out the patches to fix the bug. And I have tracking bugs at hand from other important customers, related to this fix too. The back porting of Chao's patches into our distros are blocked by these two. We gonna miss another due date we promised to customers. Thanks Baoquan