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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A9A43C197A0 for ; Mon, 20 Nov 2023 17:47:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=o2KLl1xjTb8JuVzzGZE27tEar/YUsvlOYMsTb/nD/jM=; b=H2g1MLbNYcNpzJ xzjy5IM3SqoLfbHR+gmL2L56mNj3Cv6xmMpQKDULzEBmYyTOVwFssuisahWYMuHyzPPWPL9u75Xq5 3rz7soUXTrJKbmeU6hTPGgGoZn3s6FP7lSHC5XUn+1hHDPCXk23kyh5dF33aX2ekYD2b2Em2YdbWc 5+qy3ZWT/f/m52BjE8f4Z5ien9KbSLmXXo/QQjmGkJ7QJsvULMwHt0ubL03d9oR15vjVb9vNXBes3 gk+xrLeJwObsEBiTDdDgh59fE+XMHiwApD6BiHQCC2f4Kfd6bpUE6+0T4e0GzONtRCZEBIDkr6JDl Jd97Qy1Sb0CFYdLLkhTA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r58M1-00Dzuq-2H; Mon, 20 Nov 2023 17:46:37 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r58Lx-00Dzmp-1h for linux-arm-kernel@lists.infradead.org; Mon, 20 Nov 2023 17:46:35 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 371801692; Mon, 20 Nov 2023 09:47:08 -0800 (PST) Received: from FVFF77S0Q05N.cambridge.arm.com (FVFF77S0Q05N.cambridge.arm.com [10.1.25.119]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D26D43F7A6; Mon, 20 Nov 2023 09:46:20 -0800 (PST) Date: Mon, 20 Nov 2023 17:46:18 +0000 From: Mark Rutland To: qiwuchen55@gmail.com Cc: catalin.marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, chenqiwu Subject: Re: [PATCH] arm64: Add user stacktrace support Message-ID: References: <20231118134504.154842-1-qiwu.chen@transsion.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231120_094633_672805_569ABF3C X-CRM114-Status: GOOD ( 10.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Nov 20, 2023 at 02:29:23PM +0000, Mark Rutland wrote: > On Sat, Nov 18, 2023 at 09:45:04PM +0800, qiwuchen55@gmail.com wrote: > > From: chenqiwu > > 2. Add arch_stack_walk_user() implementation to support userstacktrace transsionce option. > > What is this 'userstacktrace transsionce option' ? Sorry, I evidently corrupted the mail at my end; "transsionce" was "trace" in the original mail, which matches the ftrace output below. Please ignore this specific comment; my other concerns still apply. > > A example test about the output format of ftrace userstacktrace as shown below: > > bash-489 [000] ..... 2167.660775: sched_process_fork: comm=bash pid=489 child_comm=bash child_pid=596 > > bash-489 [000] ..... 2167.660787: > > => /lib/aarch64-linux-gnu/libc-2.32.so[+0xa76d8] > > => /bin/bash[+0x5f354] > > => /bin/bash[+0x4876c] > > => /bin/bash[+0x4aec4] > > => /bin/bash[+0x4da48] > > => /bin/bash[+0x4b710] > > => /bin/bash[+0x4c31c] > > => /bin/bash[+0x339b0] Thanks, Mark. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel