Received: by 2002:a05:6a10:22f:0:0:0:0 with SMTP id 15csp509201pxk; Sun, 30 Aug 2020 11:56:22 -0700 (PDT) X-Google-Smtp-Source: ABdhPJya+9UxeZYiVe7/SYk8iFpFiovW4fP1cMQ+XAiIiCYtlYiZBL67iBPmwslJBQrP+cYScjR5 X-Received: by 2002:a50:c182:: with SMTP id m2mr8188290edf.70.1598813782598; Sun, 30 Aug 2020 11:56:22 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1598813782; cv=none; d=google.com; s=arc-20160816; b=x0ewCleTsjg61c1zTykul8qESfGK7DFEk9CtagDJWCT8vs2tVCVmVJgZ+Yco6DxUjc E3b9jmHutCnInrnUW3Bk8K1V8M/p4zp//0hsLNKN1dm+5sgmWIZNN62AFL3S3HnI3jAC szQ39GBbNxJDZT90/esqSUDJtm3VahtkcXqyrYPhw6tyYSm53B8M7m+jQkwzZoLOHqpo eeGkqLcQPTEfqx2WJARhp5u99JOkzf81+DjBdm8KMkj3gYgQyNUgXaceiZRzHcMCZc2U A1gMNvldDKXGeF0XxTHchqrpN+3hHmJSziiLbfIRvQ/kWm5b0DkNJkrnYaBBlVtX0uCb YrAg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:dkim-signature; bh=lcprhZbONDavwPjBHmv5QL5cg+ByZzLDxztuhPCGpmQ=; b=g+/kyhenqj0CjQo7m7Wm2fjnvN+3b1DoXq50pP28YGI2AfsdqlHwp8Xl9hKXiO3L7+ 6RpwbQmLGMDamStyA626m6Q4hHXwhYQafM7Q1/iUk+AiQnlp6OJE6m16KsYnmpqrD+wZ Td+KUKlxQFyCs32lC1eVoy2v97l+QL/PZPDnRz+lAkMfQTz+9pNH5F4GzY9yLIS7kz94 df/3UfT0PuqY4+h6gVElgt/xQvwZTcJhuY1RAFcULVKjrv/YDIDG050dqp1JmNk6lpAg 5xtywssChtunolTQeGQWgMl8XtWs87KOTs457vMY9r3Lb+PywBp0uqOVp5yP0R4bzgFE cp6Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linux-foundation.org header.s=google header.b=D0fmpEbc; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id bz20si4403201ejc.242.2020.08.30.11.55.44; Sun, 30 Aug 2020 11:56:22 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linux-foundation.org header.s=google header.b=D0fmpEbc; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726396AbgH3Sys (ORCPT + 99 others); Sun, 30 Aug 2020 14:54:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33200 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726201AbgH3Sym (ORCPT ); Sun, 30 Aug 2020 14:54:42 -0400 Received: from mail-lf1-x143.google.com (mail-lf1-x143.google.com [IPv6:2a00:1450:4864:20::143]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C935C061236 for ; Sun, 30 Aug 2020 11:54:41 -0700 (PDT) Received: by mail-lf1-x143.google.com with SMTP id 12so2293633lfb.11 for ; Sun, 30 Aug 2020 11:54:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=lcprhZbONDavwPjBHmv5QL5cg+ByZzLDxztuhPCGpmQ=; b=D0fmpEbcNJU8sts2qtgUM1dWuhNp4JNYRUSby6X6ORV6bFNbp7GfGxF+Aq3L4FvnHC elBEMqRwxJhhQbk+yzL/8H9LFCi6qwieeoZDjPTkVMjVAn99uYMkfDKiBOEX4aWMxgM8 cyLNpWLJZSDVe+iwdazLLdiLq/HLA2T571Eh0= 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=lcprhZbONDavwPjBHmv5QL5cg+ByZzLDxztuhPCGpmQ=; b=JX7i9zQdLeBEtXoZtykmFOUBomqhh4SHuMKNowtmjxW79f04JhXohb4AeW10byOCGC X5mRTB8xt9g4JnqB4V2HWGKKPRXeeMCFe6wlbhJ/gsj0+aETHVC9eRqgbU9z2UgIOVQ0 j6avtNG9mleVopGUmfdYRYf+qdcVT7R2cCegD3H+u1JLRyf6Djw8OMfY/TD8KMWRTmQ3 Yo3M3XnMN23k2V1hsUzp6q3vSyge/NFBtzn6ArO0YcvRrme+xWF/EFlZnXYuNBf/RuMj 8Vwnwt3HDMlZV99a/CZg1OVH4Wlo2k370oKoEAasciMy93HOxEMOE1SCwkhn+GyH+aPd 9oFw== X-Gm-Message-State: AOAM531Q8BP5iRnjD8LyTMpFVcd/sR2sASusfISHkOGgwf6dvesyKt0H Q+u0UaK68/8qHXGFVhZlnRFHRTIy22J3uA== X-Received: by 2002:a05:6512:690:: with SMTP id t16mr3918249lfe.213.1598813677314; Sun, 30 Aug 2020 11:54:37 -0700 (PDT) Received: from mail-lj1-f176.google.com (mail-lj1-f176.google.com. [209.85.208.176]) by smtp.gmail.com with ESMTPSA id q20sm1097213ljj.42.2020.08.30.11.54.36 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 30 Aug 2020 11:54:36 -0700 (PDT) Received: by mail-lj1-f176.google.com with SMTP id 185so4246313ljj.7 for ; Sun, 30 Aug 2020 11:54:36 -0700 (PDT) X-Received: by 2002:a2e:b008:: with SMTP id y8mr3232461ljk.421.1598813675930; Sun, 30 Aug 2020 11:54:35 -0700 (PDT) MIME-Version: 1.0 References: <159881061564.27993.11909051048930389391.tglx@nanos> <159881061804.27993.16119786735164087221.tglx@nanos> In-Reply-To: <159881061804.27993.16119786735164087221.tglx@nanos> From: Linus Torvalds Date: Sun, 30 Aug 2020 11:54:19 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [GIT pull] sched/urgent for v5.9-rc2 To: Thomas Gleixner , Marco Elver Cc: Linux Kernel Mailing List , "the arch/x86 maintainers" 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 Sun, Aug 30, 2020 at 11:04 AM Thomas Gleixner wrote: > > - Make is_idle_task() __always_inline to prevent the compiler from putting > it out of line into the wrong section because it's used inside noinstr > sections. What completely broken compiler uninlined that single-instruction function? I've obviously pulled this, but it sounds like there should be a compiler bug-report for this insane behavior. Or is Marco building the kernel without optimizations or something like that? That has not been a supported model, for various good reasons.. Linus