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 X-Spam-Level: X-Spam-Status: No, score=-20.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1, USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E40D4C4743D for ; Fri, 4 Jun 2021 20:44:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B57FD61403 for ; Fri, 4 Jun 2021 20:44:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229982AbhFDUq2 (ORCPT ); Fri, 4 Jun 2021 16:46:28 -0400 Received: from linux.microsoft.com ([13.77.154.182]:43882 "EHLO linux.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229913AbhFDUq2 (ORCPT ); Fri, 4 Jun 2021 16:46:28 -0400 Received: from [192.168.254.32] (unknown [47.187.214.213]) by linux.microsoft.com (Postfix) with ESMTPSA id B81E420B7178; Fri, 4 Jun 2021 13:44:40 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com B81E420B7178 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1622839481; bh=TEj7EM3o5+98uJz07bRAjergvchDlGPCV6FJpuSvx4o=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=HouYNKoOc/HyfaQL1LCJbvsjnCx3jzuuAqk6uTacGwD253S95a3gu4rFYA4RAurVy 7ZicmjTFGm48ks6edRn8/E2mK4FrqUfA2BmC8/oGFKkyk+8VZ6M3alaa9PvjEQcxyg vqo9nXtlvpetxo72bR+nFtDAIA1Xgm5aYcKeBA4c= Subject: Re: [RFC PATCH v5 0/2] arm64: Implement stack trace reliability checks To: Mark Brown , Mark Rutland Cc: jpoimboe@redhat.com, ardb@kernel.org, nobuta.keiya@fujitsu.com, catalin.marinas@arm.com, will@kernel.org, jmorris@namei.org, pasha.tatashin@soleen.com, jthierry@redhat.com, linux-arm-kernel@lists.infradead.org, live-patching@vger.kernel.org, linux-kernel@vger.kernel.org References: <20210526214917.20099-1-madvenka@linux.microsoft.com> <20210604152908.GD4045@sirena.org.uk> From: "Madhavan T. Venkataraman" Message-ID: <3e3fdff0-26ed-e786-e570-3f569bda1609@linux.microsoft.com> Date: Fri, 4 Jun 2021 15:44:39 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <20210604152908.GD4045@sirena.org.uk> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: live-patching@vger.kernel.org Hi Mark Rutland, Could you please review this patch series when you get a chance? I would really like to get a confirmation from you that there are no gaps in this. Thanks in advance! Madhavan On 6/4/21 10:29 AM, Mark Brown wrote: > On Wed, May 26, 2021 at 04:49:15PM -0500, madvenka@linux.microsoft.com wrote: >> From: "Madhavan T. Venkataraman" >> >> There are a number of places in kernel code where the stack trace is not >> reliable. Enhance the unwinder to check for those cases and mark the >> stack trace as unreliable. Once all of the checks are in place, the unwinder > > Reviewed-by: Mark Brown >