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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS 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 947CDC6778F for ; Mon, 9 Jul 2018 10:56:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4E53A20882 for ; Mon, 9 Jul 2018 10:56:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4E53A20882 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754469AbeGIK4n (ORCPT ); Mon, 9 Jul 2018 06:56:43 -0400 Received: from foss.arm.com ([217.140.101.70]:56824 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754432AbeGIK4m (ORCPT ); Mon, 9 Jul 2018 06:56:42 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D917C7A9; Mon, 9 Jul 2018 03:56:41 -0700 (PDT) Received: from [10.1.206.34] (melchizedek.cambridge.arm.com [10.1.206.34]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3C7403F318; Mon, 9 Jul 2018 03:56:38 -0700 (PDT) Subject: Re: [PATCH v3 0/3] arm64: kexec,kdump: fix boot failures on acpi-only system To: AKASHI Takahiro , catalin.marinas@arm.com, will.deacon@arm.com Cc: ard.biesheuvel@linaro.org, tbaicar@codeaurora.org, bhsharma@redhat.com, dyoung@redhat.com, mark.rutland@arm.com, al.stone@linaro.org, graeme.gregory@linaro.org, hanjun.guo@linaro.org, lorenzo.pieralisi@arm.com, sudeep.holla@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kexec@lists.infradead.org References: <20180709000750.22172-1-takahiro.akashi@linaro.org> From: James Morse Message-ID: Date: Mon, 9 Jul 2018 11:56:36 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <20180709000750.22172-1-takahiro.akashi@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Akashi, On 09/07/18 01:07, AKASHI Takahiro wrote: > Patch#2 and #3 addresses kdump case. Ard's patch [4] needs to be applied > preliminarily. I missed this, and was then surprised by [0], when I tested kdump. Could you re-post this with all the dependencies in the series? These changes need to be tested together and merged at the same time, otherwise kdump can't be tested and we risk the maintainer picking up broken code. Thanks, James [0] failed kdump boot on Seattle ------------------%<------------------ ACPI: Added _OSI(3.0 _SCP Extensions) ACPI: Added _OSI(Processor Aggregator Device) ACPI: Added _OSI(Linux-Dell-Video) Unable to handle kernel paging request at virtual address ffff2007 Mem abort info: ESR = 0x96000021 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000021 CM = 0, WnR = 0 swapper pgtable: 4k pages, 48-bit VAs, pgdp = (____ptrval____) pgd=00000080ffdfd803, pud=00000080ffdfc803, pm3 Internal error: Oops: 96000021 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Tainted: G S 4.18.0-1 Hardware name: AMD Overdrive/Supercharger/Default string, BIOS RO6 pstate: 10400005 (nzcV daif +PAN -UAO) pc : acpi_ns_lookup+0x550/0x740 lr : acpi_ns_lookup+0x2f8/0x740 [...] Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____)) Call trace: acpi_ns_lookup+0x550/0x740 acpi_ds_load2_begin_op+0x568/0x87c acpi_ds_exec_begin_op+0x50/0x388 acpi_ps_build_named_op+0x1cc/0x3dc acpi_ps_create_op+0x4f4/0x864 acpi_ps_parse_loop+0x40c/0x133c acpi_ps_parse_aml+0x1f4/0x5a8 acpi_ps_execute_table+0x24c/0x2e0 acpi_ns_execute_table+0x354/0x408 acpi_ns_parse_table+0x5c/0x94 acpi_ns_load_table+0x40/0xf8 acpi_tb_load_namespace+0x31c/0x510 acpi_load_tables+0x48/0x13c acpi_init+0x170/0x5c8 do_one_initcall+0xc0/0x2b0 kernel_init_freeable+0x3d4/0x484 kernel_init+0x10/0x118 ret_from_fork+0x10/0x18 Code: f90037a2 aa1303e0 97dfd654 f94037a2 (b9400260) ---[ end trace d678006368422baa ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x00b ------------------%<------------------