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 69B8EC3279B for ; Mon, 2 Jul 2018 21:41:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2AF5225D21 for ; Mon, 2 Jul 2018 21:41:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2AF5225D21 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 S1753729AbeGBVlq (ORCPT ); Mon, 2 Jul 2018 17:41:46 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:40016 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753698AbeGBVlo (ORCPT ); Mon, 2 Jul 2018 17:41:44 -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 2C0C618A; Mon, 2 Jul 2018 14:41:44 -0700 (PDT) Received: from [192.168.100.244] (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B0B413F2EA; Mon, 2 Jul 2018 14:41:43 -0700 (PDT) To: erik.schmauss@intel.com, "linux-acpi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "Rafael J . Wysocki" , "linux-arm-kernel@lists.infradead.org" , Lorenzo Pieralisi From: Jeremy Linton Subject: 4.18rc3 TX2 boot failure with "ACPICA: AML parser: attempt to continue loading table after error" Message-ID: Date: Mon, 2 Jul 2018 16:41:42 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed 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, I'm experiencing two problems with commit 5088814a6e931 which is "ACPICA: AML parser: attempt to continue loading table after error" The first is this boot failure on a thunderX2: [ 10.770098] ACPI Error: Ignore error and continue table load (20180531/psobject-604) [ 10.777926] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 10.786809] Mem abort info: [ 10.789623] ESR = 0x96000004 [ 10.792702] Exception class = DABT (current EL), IL = 32 bits [ 10.798682] SET = 0, FnV = 0 [ 10.801760] EA = 0, S1PTW = 0 [ 10.804925] Data abort info: [ 10.807827] ISV = 0, ISS = 0x00000004 [ 10.811698] CM = 0, WnR = 0 [ 10.814689] [0000000000000000] user address but active_mm is swapper [ 10.821108] Internal error: Oops: 96000004 [#1] SMP [ 10.826032] Modules linked in: [ 10.829113] CPU: 30 PID: 1 Comm: swapper/0 Not tainted 4.18.0-rc3PPTT4k+ #53 [ 10.836234] Hardware name: Default string Cavium ThunderX2/Default string, BIOS L50_5.13_1.0.0 05/16/2018 [ 10.845905] pstate: 00400009 (nzcv daif +PAN -UAO) [ 10.850746] pc : acpi_ps_peek_opcode+0x1c/0x40 [ 10.855231] lr : acpi_ps_create_op+0x54/0x278 [ 10.859627] sp : ffff000009a8ba30 [ 10.862969] x29: ffff000009a8ba30 x28: 0000000054445353 [ 10.868334] x27: 0000000000004008 x26: 0000000000000000 [ 10.873698] x25: ffff000009767f23 x24: ffff000008d59000 [ 10.879063] x23: ffff802672799030 x22: ffff000009a8bb28 [ 10.884427] x21: 0000000000000000 x20: ffff000008d59000 [ 10.889791] x19: ffff802672799030 x18: ffffffffffffffff [ 10.895155] x17: 0000000000000013 x16: 0000000000000000 [ 10.900519] x15: ffff000008d59708 x14: 2d7463656a626f73 [ 10.905883] x13: 702f313335303831 x12: 3032282064616f6c [ 10.911246] x11: 20656c6261742065 x10: 756e69746e6f6320 [ 10.916610] x9 : 0000000000000058 x8 : ffff000008570998 [ 10.921974] x7 : 203a726f72724520 x6 : 0000000000000334 [ 10.927338] x5 : 0000000000000012 x4 : 0000000000000000 [ 10.932701] x3 : 0000000000000000 x2 : ffff000009a8bb28 [ 10.938065] x1 : 0000000000000000 x0 : ffff000008505790 [ 10.943430] Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____)) [ 10.950199] Call trace: [ 10.952663] acpi_ps_peek_opcode+0x1c/0x40 [ 10.956797] acpi_ps_create_op+0x54/0x278 [ 10.960842] acpi_ps_parse_loop+0x1b4/0x6c8 [ 10.965063] acpi_ps_parse_aml+0xe0/0x2b4 [ 10.969108] acpi_ps_execute_table+0xa0/0x104 [ 10.973505] acpi_ns_execute_table+0x120/0x194 [ 10.977989] acpi_ns_parse_table+0x34/0x68 [ 10.982122] acpi_ns_load_table+0x4c/0xbc [ 10.986169] acpi_tb_load_namespace+0x1d4/0x240 [ 10.990744] acpi_load_tables+0x50/0xbc [ 10.994614] acpi_init+0xb8/0x374 [ 10.997959] do_one_initcall+0x54/0x208 [ 11.001829] kernel_init_freeable+0x224/0x300 [ 11.006229] kernel_init+0x18/0x118 [ 11.009747] ret_from_fork+0x10/0x18 [ 11.013354] Code: aa0003f3 aa1e03e0 d503201f f9400661 (39400020) [ 11.019535] ---[ end trace 2bd8068593cf8acc ]--- [ 11.024195] Kernel panic - not syncing: Fatal exception [ 11.029488] SMP: stopping secondary CPUs [ 11.033480] ---[ end Kernel panic - not syncing: Fatal exception ]--- Which does appear to be the result of some bad data in the table, but it was working with 4.17, and reverting this commit solves the problem. Also the messages now newly being prefixed with '\n' are slightly corrupted like: "3ACPI BIOS Error (bug):" because the KERN_XXX macro is being encoded after the CR which keeps it from being processed correctly. Thanks,