Received: by 2002:a25:ef43:0:0:0:0:0 with SMTP id w3csp45963ybm; Thu, 28 May 2020 15:42:08 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyVYBjqyV9y7EY2exojtceS/+ZjMKCAP5xAwl+U3DB29NykXlK4hcxvN5ljVp7hXRyJGbpZ X-Received: by 2002:aa7:d3d6:: with SMTP id o22mr5548958edr.359.1590705727984; Thu, 28 May 2020 15:42:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1590705727; cv=none; d=google.com; s=arc-20160816; b=nU+PisvwGAGYEFNgcjq2nLnJde5SXYEYkqRVYI2Kxj+ckFi27iDKeR6383gbLzg4lH pZ8sdTnCRmSnL3pXeJeW//SoVMwxP7BlMUrdcDo2kc91rFqJSeL9CmVENvh69sb0LbVn TDxatK5jgkRtsnnsEi23CC6WpSGhiMmnqVTetxnj8vz7JDOjNFlgu2s0goPL3FfcPR6H KjfPJGcCuYjLPBPuZR+N6tffgdYl9VuP8KG5tKm2VmyhyWZ4BsKZLMD6qkoa1aJrmJZ0 qsBm865yzc1DCYBVslSC27HlLhifyJ5k4qIi2kcbjHRi4h+RnTm4l+YTTea83AtPe3AW Ghug== 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:dkim-signature; bh=5JtCJN4R91Qw51mlPzBtDAjT1k3jMKVe+nsnhQ4R1w8=; b=PF8LvDT4YvgUO8fjOwQY0Gmb/5aNyLDcn4d2DcAA4q/8hDCkx5eULuIwytypMu6W5N fQzJ4tk19LWUHE4gHApG5VZ15z1o5D9cEos3W/EtUsKJ7wa8P8jqO6lrhaHK4W4dcmBa +i1q5FORGzPveuSRhg3LoxCXOgAa14QYgllO6qEcJtJ/N4tMBTevc1zTUJMGBzUphBzf dNlvIOh9zCO3aUiH6ekth7T8Ftt+eOqTaUxzC4J+gDujgKttLvcQSrqd+hhs/4xi9AYZ 0GsSDkzGzs/xfl92+27UzunA+Sy/XzGeEK0IA5p/LhqpbfxWeQqNZknmleg02wVA/5Of tGDg== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=Dn6j24tf; 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 kt25si4404257ejb.511.2020.05.28.15.41.45; Thu, 28 May 2020 15:42:07 -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=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=Dn6j24tf; 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 S2437232AbgE1WiD (ORCPT + 99 others); Thu, 28 May 2020 18:38:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33670 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2436945AbgE1WiB (ORCPT ); Thu, 28 May 2020 18:38:01 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17D3EC08C5C6 for ; Thu, 28 May 2020 15:38:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=5JtCJN4R91Qw51mlPzBtDAjT1k3jMKVe+nsnhQ4R1w8=; b=Dn6j24tf1xQfTci0TdCtf/EDX6 eWvDSpUR07JtIu6SP/hvQrZkwqMYBCRTsuY8qiWAI/Bd5n++TUb1tqkKftYBDYAkkJuYT1bO51ONf aAcIF9nXCrdw8MebTQLNtSy0N26TyK7wqB8XNeUPpsGyOnc7h4EcFm8dvMW/BsazeKPVwKi95JjhQ avCEh2vKL0u2pw4LTbAtPUl2Pdnf884bipcMiEI4lbkjKDpSIjSY9TAwzhuTDO/Q7BBQAvyolr1Ns iPAHAscUXgGRwEr5IjghVn4JGIOrpdCFzfZdk9lj7OTMg9vS/upHxwS9x+Qi9+irdEk34Mh3ls04U xF4uuc6g==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=worktop.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jeR9o-0006tZ-QD; Thu, 28 May 2020 22:37:48 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id 4215F9834F3; Fri, 29 May 2020 00:37:46 +0200 (CEST) Date: Fri, 29 May 2020 00:37:46 +0200 From: Peter Zijlstra To: Lai Jiangshan Cc: Thomas Gleixner , Andy Lutomirski , LKML , X86 ML , Lai Jiangshan , Sean Christopherson , andrew.cooper3@citrix.com, daniel.thompson@linaro.org Subject: Re: [RFC][PATCH 6/6] x86/entry: Remove DBn stacks Message-ID: <20200528223746.GT2483@worktop.programming.kicks-ass.net> References: <20200528201937.038455891@infradead.org> <20200528202328.708732152@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 29, 2020 at 06:35:07AM +0800, Lai Jiangshan wrote: > There will be a compile error about N_EXCEPTION_STACKS > in arch/x86/kernel/dumpstack_64.c. It should have > > - BUILD_BUG_ON(N_EXCEPTION_STACKS != 6); > + BUILD_BUG_ON(N_EXCEPTION_STACKS != 4); Yeah, I actually have that, but forgot to refresh before sending :/