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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 D14B2C6778A for ; Wed, 4 Jul 2018 03:10:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7E15A2466F for ; Wed, 4 Jul 2018 03:10:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7E15A2466F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932688AbeGDDKk (ORCPT ); Tue, 3 Jul 2018 23:10:40 -0400 Received: from mail-pg0-f44.google.com ([74.125.83.44]:35259 "EHLO mail-pg0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932396AbeGDDKi (ORCPT ); Tue, 3 Jul 2018 23:10:38 -0400 Received: by mail-pg0-f44.google.com with SMTP id e6-v6so701852pgv.2 for ; Tue, 03 Jul 2018 20:10:38 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=4FdpAysbBu9MBsmb7ESPJyIqjpk1t0QeuPO7ywLOr7U=; b=FX1ev8QA0a1fzkc6aFVrCYQxVpvJ5sBmgW1U6XsXSsTYh6HXKN08C70V1PsqqjFpZL bMlnxFjkqdHGC9VD0ZKi82335lkfanOjPucfwYkSOa4NiDZ+Zdqx/yrq2/x2S88HFt4s xEhCuPeBxlHTM9Mvaf9XYDW0Rxa+XWfj5xWV9UY4mcrdfspxVfPWq+tbsDuUcaT6tyAl 9UYinLPqMpUWNMzwLIp7cRmIEKdbcixzLz15HUgF/bDQEWl0pcbza+n0868KaNbTJkQ2 7OXN2RlAoAtBXoHiiArH7KIddrFl+JgghZYNgG7FNdwG6nXNOuHFujhSADSzqpNCBZ1L 3Tag== X-Gm-Message-State: APt69E2NeuozUG8Wz8zWN4H/CvnVePyaIM2JD0vtSZ17wyhbLjE075h+ 1fPDRz8vlHWAzWN/FRyXo5BYCg== X-Google-Smtp-Source: AAOMgpfWxgfp6I9v18TvFkCs3083LP1Y9cWKStloeFwfpXTy38RuHy96vWr75kAiX1lvCVIfOvBgTw== X-Received: by 2002:a63:5143:: with SMTP id r3-v6mr279403pgl.11.1530673838194; Tue, 03 Jul 2018 20:10:38 -0700 (PDT) Received: from trogon.sfo.coreos.systems ([2604:2000:80c5:4400:140c:73de:b623:c90]) by smtp.gmail.com with ESMTPSA id z10-v6sm3770368pfh.83.2018.07.03.20.10.35 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 03 Jul 2018 20:10:37 -0700 (PDT) Date: Tue, 3 Jul 2018 23:10:27 -0400 From: Benjamin Gilbert To: "Kirill A. Shutemov" Cc: Gabriel C , linux-x86_64@vger.kernel.org, LKML , "Kirill A. Shutemov" , Ingo Molnar , Thomas Gleixner , "H. Peter Anvin" , X86 ML , bero@lindev.ch, Andi Kleen Subject: Re: 4.17.x won't boot due to "x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G" Message-ID: <20180704031027.GA24835@trogon.sfo.coreos.systems> References: <20180701213243.GA20180@trogon.sfo.coreos.systems> <20180703124403.veiak4vnbxtmwhv2@kshutemo-mobl1> <20180703142150.tqckl7miou3wf33q@kshutemo-mobl1> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180703142150.tqckl7miou3wf33q@kshutemo-mobl1> User-Agent: Mutt/1.10.0 (2018-05-17) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 03, 2018 at 05:21:50PM +0300, Kirill A. Shutemov wrote: > I don't know how to solve it. As far as I know we don't support compiling > kernel with LTO in mainline. > > Any suggestions? > > Benjamin, do you change LDFLAGS or CFLAGS when compiling the kernel? We're using the standard build flags as far as I can tell. In particular, we don't enable LTO, and I've verified that -flto isn't in the build logs. Here's a sample image: https://users.developer.core-os.net/bgilbert/4.17/vmlinuz-4.17.3-coreos https://users.developer.core-os.net/bgilbert/4.17/vmlinux-4.17.3-coreos https://users.developer.core-os.net/bgilbert/4.17/System.map --Benjamin Gilbert