Received: by 2002:a25:e74b:0:0:0:0:0 with SMTP id e72csp1658841ybh; Mon, 20 Jul 2020 04:07:44 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzBKTcubYpPmrH+3mzrl7pFe3csG+oVgTx5yIypWyrMah1Ydh7ZrlfXRp+I47Y0vcMOCKnQ X-Received: by 2002:a17:906:abd6:: with SMTP id kq22mr21129450ejb.458.1595243264545; Mon, 20 Jul 2020 04:07:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1595243264; cv=none; d=google.com; s=arc-20160816; b=MJB4j5KAD7u8zk2umzlM0mFps9e0q6UFj83J+QJpprn0v01/8rEpREkfaJKr7Ksiqt TPSWW7vY7YKgjTF6T/N1ZzZePsZmY4yfD1+Gm+cUsT/MyYxgl9HRZyShj8L8trCkl992 WqrMwaKLzW1j0HIi1l89+mDGGanieXHRa8SfB/a+Q3DcgQQ135/mztahzBxONw6OF829 au+PPvwJnWhCKT5PKKzvLAO/A8OBmCYdVWYW4dQqugXTUVOvZZMHy9DoaR2HslOf1Lwb i52ipbS0G7+QNNDu3c4nmt8Pf/M7Ckbykpapx9Rn5a1rO+LGHuMU6Rh5foiQ8ZBmmfHo wSzw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:in-reply-to :mime-version:user-agent:date:message-id:from:references:cc:to :subject; bh=Gf7Ybiw10VizhHTCwHoe4W+75/y1VrKAyJsRk0pNugE=; b=Px8Px32gnGDg5zOl3QpdDExBxXS4pTn++V/PaCuOma/3Nq8dw5NuiYI62DsmD0PuzO oWPy4qA2qaxru3El5vhNUvXqdMW7VcoGEyYA9dCs42/Wzzq+A33rX/RnWvYWpk9KvVDY F/LE/WiXXnBXQej5yuaxf54fXE0z+PA3JLe1x7TSyU5TyE19QxGWUMfnanKn8KVhIsUe U7cxBBifxdYbjXLTnJ41jO0oP+OSuarikHCuMkdX9TRZgCzQnZUmNV5074QAikUkCR3r KP75yj7OeKTTpVXCXZA55XI8o/6IXmCbO9owoTdZqPBQdnBrKP/q7chrUrqAQMGCJ5c+ ED2A== 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 y18si9961520eds.226.2020.07.20.04.07.21; Mon, 20 Jul 2020 04:07:44 -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 S1728500AbgGTLGr (ORCPT + 99 others); Mon, 20 Jul 2020 07:06:47 -0400 Received: from szxga07-in.huawei.com ([45.249.212.35]:40264 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728348AbgGTLGr (ORCPT ); Mon, 20 Jul 2020 07:06:47 -0400 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id B2408D76248D70AE5F11; Mon, 20 Jul 2020 19:06:44 +0800 (CST) Received: from [127.0.0.1] (10.174.179.63) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.487.0; Mon, 20 Jul 2020 19:06:42 +0800 Subject: Re: [PATCH 0/2] x86/unwind: A couple of fixes for newly forked tasks To: Josh Poimboeuf , CC: , , "Peter Zijlstra" References: From: "Wangshaobo (bobo)" Message-ID: <88444749-84f5-1e80-3c97-cac3bf0a064c@huawei.com> Date: Mon, 20 Jul 2020 19:06:42 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.1.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="gbk"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.174.179.63] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tested-by: Wang ShaoBo ?? 2020/7/17 22:04, Josh Poimboeuf ะด??: > A couple of reliable unwinder fixes for newly forked tasks, which were > reported by Wang ShaoBo. > > Josh Poimboeuf (2): > x86/unwind/orc: Fix ORC for newly forked tasks > x86/stacktrace: Fix reliable check for empty user task stacks > > arch/x86/kernel/stacktrace.c | 5 ----- > arch/x86/kernel/unwind_orc.c | 8 ++++++-- > 2 files changed, 6 insertions(+), 7 deletions(-) >