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=-8.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_IN_DEF_DKIM_WL autolearn=no 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 5934AC433E0 for ; Wed, 3 Jun 2020 13:33:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 30DDA20679 for ; Wed, 3 Jun 2020 13:33:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="qQY7fexk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726086AbgFCNdK (ORCPT ); Wed, 3 Jun 2020 09:33:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725836AbgFCNdJ (ORCPT ); Wed, 3 Jun 2020 09:33:09 -0400 Received: from mail-oi1-x244.google.com (mail-oi1-x244.google.com [IPv6:2607:f8b0:4864:20::244]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BA643C08C5C0 for ; Wed, 3 Jun 2020 06:33:09 -0700 (PDT) Received: by mail-oi1-x244.google.com with SMTP id 25so877910oiy.13 for ; Wed, 03 Jun 2020 06:33:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=2Q5Izy2Q3y4sMGHFp3V6FithAv0OmwTAETmoYPgsSps=; b=qQY7fexkdXeUYXj2Vn3mtQ9pFavPkAkOY0O4TkwT3wvzZakAEYeluUK5+Oe3s3ppO0 qavwoK0Nln6Kn63yuf//RUB6+cPLni/WGHcjw4n5CIk89nBLdcZKKveYoE1otLVR6R41 mWuhbSYdhj9RoKed54uojOahfA2GxFLkyiJJzpXHjPpLNKHsLOlCiG66JBrl3IUU94NN l03v5tLS8rODVU7q4FjctdZQ8jKchvFfhknyNbPWMB6LA7rvGPgWw3w5jSN483GH8N+P puOvSLftiHypXmIH5XEGLZotLzijthRqeimO1P1SxL+dx9gkS5fWtQm9J35ryesz+SFS T6LA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=2Q5Izy2Q3y4sMGHFp3V6FithAv0OmwTAETmoYPgsSps=; b=FCbXl+gmgXNkzKIQPuhABUHrf3ukHKD3OKNawhA7ljuPrEpKGPmJFjYASgA2DeDdK0 E+/fln7Xop+w2wY9s2PoPA/CiRVneBqRdxMQbqsdOO06zazOEQ0ri6n7mgb639XC7gt3 MlHDMeeflb4f4j1Pq4h4xtTkgazzypE9LZg1T/fJRFz1wU3DKy+SmP0f/ilY9I9UqQWK 8QrkDEvYKx4JKvJDCcdSTDop0U1TNpZGmWvh5lUa7EjWV/aoykW5UJkfWZxRN96zQCNz mt7owPsdGQFn2I5EicXbJPogXEWxZGbJjZ1B+NexscEMfcTPhBMV2XtGHUoPYhW0ixFv /7nA== X-Gm-Message-State: AOAM531qoD3V9lwFiOS2fJC/vxJhJrakZlzXrvhgwwx2n/pwrEPVV1D4 w19r5BsT6UGkKdP2Uoympow/0doeJxwY/JEcwYHC1A== X-Google-Smtp-Source: ABdhPJwYH/jBClsBY+AiWl09LlisxEXBMp5e0AmwhVNdHgR1jR9lxHsOBJ5yycyMvYU3baQSoHRY0K2wvKCNcqK3gos= X-Received: by 2002:a05:6808:34f:: with SMTP id j15mr6473850oie.121.1591191188821; Wed, 03 Jun 2020 06:33:08 -0700 (PDT) MIME-Version: 1.0 References: <20200603114014.152292216@infradead.org> <20200603120037.GA2570@hirez.programming.kicks-ass.net> <20200603120818.GC2627@hirez.programming.kicks-ass.net> <20200603121815.GC2570@hirez.programming.kicks-ass.net> In-Reply-To: <20200603121815.GC2570@hirez.programming.kicks-ass.net> From: Marco Elver Date: Wed, 3 Jun 2020 15:32:57 +0200 Message-ID: Subject: Re: [PATCH 0/9] x86/entry fixes To: Peter Zijlstra Cc: Thomas Gleixner , "the arch/x86 maintainers" , "Paul E. McKenney" , kasan-dev , LKML , Will Deacon , Dmitry Vyukov , Alexander Potapenko , Andrey Konovalov Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 3 Jun 2020 at 14:18, Peter Zijlstra wrote: > > On Wed, Jun 03, 2020 at 02:08:57PM +0200, Marco Elver wrote: > > > What is the .config you used? I somehow can't reproduce. I've applied > > the patches on top of -tip/master. > > So tip/master, my patches, your patches, this series. > > $ make CC=/opt/llvm/bin/clang O=defconfig-build/ -j80 -s bzImage > > is what I used, with the below config. > Thanks, can reproduce now. So far I haven't found any indication that there is a missing check in Clang's instrumentation passes somewhere. I'm a bit suspicious because both Clang and GCC have this behaviour. I'll continue looking. Thanks, -- Marco