Received: by 2002:a05:6902:102b:0:0:0:0 with SMTP id x11csp1547157ybt; Thu, 18 Jun 2020 11:11:57 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwpM6kEk56sOAb4V+xBDNqKDKQNWf0spp7ves0kS8K13VOoXcxwPnExtu83IpO15WcW6qDP X-Received: by 2002:a17:906:b0a:: with SMTP id u10mr5337397ejg.211.1592503917462; Thu, 18 Jun 2020 11:11:57 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1592503917; cv=none; d=google.com; s=arc-20160816; b=wF5xnzgE0RXyTxrXxzNJUVcX7WBs76phg1tUvayWtHlAiCB4+0Xa0IuU1/L91V8lw4 i1SHBvNZt2X0yiDM7UbxU3/cDY4uNR7zy0HqrJXeNGgGy4HLZeAuzAd10kt6+94WNYzz 3JqLs4QCTa4tJy35QiXpSwjfQA2uKRaO08BA2qVf97jj9qUEQaMdVHDtMmD2Pp4XlMYa 1zMDCpJlWZkYPSZZHg+ekg6NksfHqT4t7kh2GkjZO9/2TJTC+tM2EXk9rWnlKARznugc xO4k31geaCwMmgmCHfAiNlHw3m5I/yVPNO5QBPYCG3OtPLNIcGMzUidJCdtIgRJSzQfK ILjg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:message-id:date:references :in-reply-to:subject:cc:to:from; bh=aBBvNpjBQpTqty5YQNreXFlw/AjzlKMRK1Jr5opTeS0=; b=KTHoIlHjALMXcGeki9sZnq+dyx5Vpwx1AoaNtilcphU2yzgJVuZ8sf0kI9ezbT34+u 34rC63HJVHiKgfXXFu0fDAGvp5TfmLRCdDtUVGK+rAvFmKjfnEjCSPsEwU1FO9AhyB5l YbKKvEzzWc9lrGS3ONWmxc5nS5hAqh8NreO91EgMKJoeqzgChzjI0LG3ITzcH5zmXtlN N/gFrVtbL+pGPZTVHnBsiuRxNp6kFHCvPmfqFKCc2xmoniQxyGUEemv1zfVSeq0laTi9 6Tv3YGq2lIqxBaHIBRBf1pqRAFrccWLlO5No0cZYjkcJ8xRxThYniz+4bFOx/7n1EJtq TFDA== ARC-Authentication-Results: i=1; mx.google.com; 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 ci9si2295062ejb.218.2020.06.18.11.11.34; Thu, 18 Jun 2020 11:11:57 -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; 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 S1730636AbgFROKh (ORCPT + 99 others); Thu, 18 Jun 2020 10:10:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728707AbgFROKe (ORCPT ); Thu, 18 Jun 2020 10:10:34 -0400 Received: from Galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85690C06174E for ; Thu, 18 Jun 2020 07:10:34 -0700 (PDT) Received: from p5de0bf0b.dip0.t-ipconnect.de ([93.224.191.11] helo=nanos.tec.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1jlvF6-0003LK-7Q; Thu, 18 Jun 2020 16:10:12 +0200 Received: by nanos.tec.linutronix.de (Postfix, from userid 1000) id 8CCA9101482; Thu, 18 Jun 2020 16:10:11 +0200 (CEST) From: Thomas Gleixner To: Lai Jiangshan , Andy Lutomirski Cc: Lai Jiangshan , LKML , Ingo Molnar , Borislav Petkov , X86 ML , "H. Peter Anvin" , Peter Zijlstra , Alexandre Chartre , "Eric W. Biederman" , Jann Horn , Dave Hansen Subject: Re: [PATCH V2 0/4] x86/entry: simply stack switching when exception on userspace In-Reply-To: References: <87mu5roov6.fsf@nanos.tec.linutronix.de> <20200529082618.1697-1-laijs@linux.alibaba.com> Date: Thu, 18 Jun 2020 16:10:11 +0200 Message-ID: <877dw4cvng.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Lai, Lai Jiangshan writes: > Hello and Ping you have poked on that on Tuesday, i.e. 2 days ago. It's on the todo list, but not the must urgent problem on the planet. Thanks tglx