From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751815AbeDJBZ4 (ORCPT ); Mon, 9 Apr 2018 21:25:56 -0400 Received: from mga12.intel.com ([192.55.52.136]:25449 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751367AbeDJBZz (ORCPT ); Mon, 9 Apr 2018 21:25:55 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,429,1517904000"; d="scan'208";a="45569879" Date: Tue, 10 Apr 2018 09:23:40 +0800 From: Ye Xiaolong To: Steven Rostedt Cc: linux-kernel@vger.kernel.org, lkp@01.org Subject: Re: [lkp-robot] [init, tracing] 2580d6b795: BUG:kernel_reboot-without-warning_in_boot_stage Message-ID: <20180410012340.GA17893@yexl-desktop> References: <20180406191334.357550809@goodmis.org> <20180409053252.GB27349@yexl-desktop> <20180409180454.1310abea@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180409180454.1310abea@gandalf.local.home> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Steven On 04/09, Steven Rostedt wrote: >On Mon, 9 Apr 2018 13:32:52 +0800 >kernel test robot wrote: > >> FYI, we noticed the following commit (built with gcc-7): >> >> commit: 2580d6b795e25879c825a0891cf67390f665b11f ("init, tracing: Have printk come through the trace events for initcall_debug") >> url: https://github.com/0day-ci/linux/commits/Steven-Rostedt/init-tracing/20180407-130743 >> >> >> in testcase: boot >> >> on test machine: qemu-system-x86_64 -enable-kvm -cpu Nehalem -smp 2 -m 512M >> >> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): >> >> >> +------------------------------------------------------------------+------------+------------+ >> | | ecf6709d07 | 2580d6b795 | >> +------------------------------------------------------------------+------------+------------+ >> | boot_successes | 0 | 0 | >> | boot_failures | 8 | 8 | >> | invoked_oom-killer:gfp_mask=0x | 8 | | >> | Mem-Info | 8 | | >> | Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 8 | | >> | BUG:kernel_reboot-without-warning_in_boot_stage | 0 | 8 | >> +------------------------------------------------------------------+------------+------------+ > >What does this mean? It means BUG:BUG:kernel_reboot-without-warning_in_boot_stage occurred 8 times in boot tests for commit 2580d6b795, while 0 time for its parent ecf6709d07. > >> >> >> >> [ 0.000000] RAMDISK: [mem 0x1b7e2000-0x1ffcffff] >> [ 0.000000] ACPI: Early table checksum verification disabled >> [ 0.000000] ACPI: RSDP 0x00000000000F6860 000014 (v00 BOCHS ) >> [ 0.000000] ACPI: RSDT 0x000000001FFE1628 000030 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) >> [ 0.000000] ACPI: FACP 0x000000001FFE147C 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) >> BUG: kernel reboot-without-warning in boot stage >> >> Elapsed time: 10 >> >> #!/bin/bash >> >> >> >> To reproduce: >> >> git clone https://github.com/intel/lkp-tests.git >> cd lkp-tests >> bin/lkp qemu -k job-script # job-script is attached in this email >> > >The config boots fine for me. But I don't have the setup to run the >above and get it to work, nor the time to figure out why it doesn't >work. Could you paste your failure log here, we can see if there is something we can help. Thanks, Xiaolong > >-- Steve