From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752213AbeBZHug (ORCPT ); Mon, 26 Feb 2018 02:50:36 -0500 Received: from mail-wm0-f65.google.com ([74.125.82.65]:35431 "EHLO mail-wm0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750941AbeBZHub (ORCPT ); Mon, 26 Feb 2018 02:50:31 -0500 X-Google-Smtp-Source: AG47ELtdUsl9Q9phKfDs+4jU6JQ1lXIUNd4SMfDUsNxBYpY/ENuTjxbZII0K86yne07bN/vRasrLgg== Date: Mon, 26 Feb 2018 08:50:27 +0100 From: Ingo Molnar To: "Kirill A. Shutemov" Cc: Borislav Petkov , tglx@linutronix.de, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org, willy@infradead.org, hpa@zytor.com, kirill.shutemov@linux.intel.com, peterz@infradead.org, gorcunov@openvz.org, luto@amacapital.net, linux-tip-commits@vger.kernel.org Subject: Re: [tip:x86/boot] x86/boot/compressed/64: Prepare trampoline memory Message-ID: <20180226075027.r5n5j6jvfum5o3z6@gmail.com> References: <20180209142228.21231-4-kirill.shutemov@linux.intel.com> <20180224214818.GD29374@pd.tnic> <20180225105205.xicklkl3n5azdw2j@node.shutemov.name> <20180226073552.xabt55ukp24inut5@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180226073552.xabt55ukp24inut5@gmail.com> User-Agent: NeoMutt/20170609 (1.8.3) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Ingo Molnar wrote: > We need to re-do this as we have now run into _exactly_ the kind of difficult to > debug bug that I was worried about when I insisted on the many iterations of > this patch-set... Ok, so I rebased tip:x86/mm and removed these two commits: adf9ca9c69a2: x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G arch/x86/boot/compressed/head_64.S | 127 ++++++++++++++++++++++++++----------- 1 file changed, 89 insertions(+), 38 deletions(-) b91993a87aff: x86/boot/compressed/64: Prepare trampoline memory arch/x86/boot/compressed/head_64.S | 24 ++++++++++- arch/x86/boot/compressed/pgtable.h | 18 ++++++++ arch/x86/boot/compressed/pgtable_64.c | 79 +++++++++++++++++++++++++++++++++++ 3 files changed, 120 insertions(+), 1 deletion(-) The other 5-level paging related commits tested out fine and are properly fine-grained. Please split these two patches up - the first patch can probably be split up into 5 parts or so. Let's start with no more than 5 patches per iteration, ok? Thanks, Ingo