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 55286C433F5 for ; Thu, 6 Jan 2022 00:00:40 +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:Date: Message-ID:From:References:Cc:To:Subject:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=GdBt98Lmh1fi6/vUhHNkyux5Z4EuD1/wUHhslqbv7aE=; b=JGFgqEWYPgT7G4Y6rPsumaMU7S jQZwzaX5uI4sJOK1002R9jsJRbP3/R5DrbfZqNUHeEr/UCVH/ThvkO7zIEh50nI1l5XUNIwOqR7S1 Yl/0Q2qb8dhrmPGcnzhwFtukji5PW1j1okZKlrWZUG9sASESl/zq6s8Fe3jdVwYHo2LESeeiBfCsh xoV4tLdy03d22TmTd7QkpnCLHwMQOQTdBwzFT1w1Zn3oTpyM/89XsHr7a6SdnNWJWTTRkftgwBEo6 p+4b97+M1jMt9R3E0CgrXQDSAGoqrTr472dCmJohNmDjRM60++XoGs8vj7KN9pbISa6hYVNjY2PPG wJFsvd+w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1n5GBN-00G2bw-Ke; Wed, 05 Jan 2022 23:59:05 +0000 Received: from linux.microsoft.com ([13.77.154.182]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1n5GBK-00G2bM-77 for linux-arm-kernel@lists.infradead.org; Wed, 05 Jan 2022 23:59:03 +0000 Received: from [192.168.254.32] (unknown [47.187.212.181]) by linux.microsoft.com (Postfix) with ESMTPSA id 15A6C20B7179; Wed, 5 Jan 2022 15:59:00 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 15A6C20B7179 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1641427140; bh=isMsZ9PjYpeZF+DylXH2CoVWmE+GQLqJiZb61eOCKOE=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=ItwAkrsl4Etr04TzIlcPXDoiKY0ij+1jXREZcKRlvNXP3hgcZjpM0f3oVxlt/qc+u v1uZBCl9ySBPd/rddAtGKxFsYMhvK5e5j8ekfnjDPfSMJdJM2lbd0Xlx2sdy6dzUAk N7HeAAh56tc8u1/HX/lIzMpvB6aM5jl+ug3W5ZlE= Subject: Re: [PATCH v12 07/10] arm64: Introduce stack trace reliability checks in the unwinder To: Mark Brown Cc: mark.rutland@arm.com, jpoimboe@redhat.com, ardb@kernel.org, nobuta.keiya@fujitsu.com, sjitindarsingh@gmail.com, catalin.marinas@arm.com, will@kernel.org, jmorris@namei.org, linux-arm-kernel@lists.infradead.org, live-patching@vger.kernel.org, linux-kernel@vger.kernel.org References: <0d0eb36f348fb5a6af6eb592c0525f6e94007328> <20220103165212.9303-1-madvenka@linux.microsoft.com> <20220103165212.9303-8-madvenka@linux.microsoft.com> From: "Madhavan T. Venkataraman" Message-ID: <85156eb8-df63-29c0-cbfc-37bc0356d9e8@linux.microsoft.com> Date: Wed, 5 Jan 2022 17:58:59 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220105_155902_372684_21864DA8 X-CRM114-Status: GOOD ( 11.04 ) 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 Thanks for the review. Do you have any comments on: [PATCH v12 04/10] arm64: Split unwind_init() [PATCH v12 10/10] arm64: Select HAVE_RELIABLE_STACKTRACE Madhavan On 1/5/22 10:58 AM, Mark Brown wrote: > On Mon, Jan 03, 2022 at 10:52:09AM -0600, madvenka@linux.microsoft.com wrote: >> From: "Madhavan T. Venkataraman" >> >> There are some kernel features and conditions that make a stack trace >> unreliable. Callers may require the unwinder to detect these cases. >> E.g., livepatch. > > Reviwed-by: Mark Brown > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel