From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751640AbdASAll (ORCPT ); Wed, 18 Jan 2017 19:41:41 -0500 Received: from mga02.intel.com ([134.134.136.20]:58866 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751430AbdASAlk (ORCPT ); Wed, 18 Jan 2017 19:41:40 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,251,1477983600"; d="scan'208";a="1095961867" Date: Thu, 19 Jan 2017 08:40:25 +0800 From: Ye Xiaolong To: Andrew Morton Cc: Matthew Wilcox , Stephen Rothwell , Matthew Wilcox , Matthew Wilcox , "Kirill A. Shutemov" , Konstantin Khlebnikov , Ross Zwisler , Tejun Heo , LKML , lkp@01.org Subject: Re: [lkp-robot] e5a305ac4a: WARNING:at_lib/list_debug.c:#__list_del_entry_valid Message-ID: <20170119004025.GA20827@yexl-desktop> References: <20170118012304.GB14484@yexl-desktop> <20170118130902.90f3dcb2431b4b95f3044244@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170118130902.90f3dcb2431b4b95f3044244@linux-foundation.org> 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 On 01/18, Andrew Morton wrote: >On Wed, 18 Jan 2017 09:23:04 +0800 kernel test robot wrote: > >> >> FYI, we noticed the following commit: >> >> commit: e5a305ac4a5233e039586c97f4ea643a4c7dc484 ("Reimplement IDR and IDA using the radix tree") >> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master >> >> in testcase: trinity >> with following parameters: >> >> runtime: 300s >> >> test-description: Trinity is a linux system call fuzz tester. >> test-url: http://codemonkey.org.uk/projects/trinity/ >> >> >> on test machine: qemu-system-i386 -enable-kvm -m 256M >> >> ... >> >> [ 2.963488] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1 >> [ 2.964998] evbug: Connected device: input1 (AT Translated Set 2 keyboard at isa0060/serio0/input0) >> [ 2.966202] ------------[ cut here ]------------ >> [ 2.966844] WARNING: CPU: 0 PID: 14 at lib/list_debug.c:55 __list_del_entry_valid+0x43/0xb0 >> [ 2.968198] list_del corruption. next->prev should be bc904168, but was b215df80 >> [ 2.969171] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 4.10.0-rc2-02114-ge5a305a #1 >> [ 2.970209] Workqueue: events_long serio_handle_event >> [ 2.970893] Call Trace: >> [ 2.971217] dump_stack+0x16/0x19 >> [ 2.971677] __warn+0xa5/0xc0 >> [ 2.972074] warn_slowpath_fmt+0x28/0x30 > >Thanks. > >That isn't a very good backtrace. Is that really the entire output? Hmm, it is a fragment of the entire backtrace, the whole output can be found in attached dmesg.xz, we'll try to paste the whole backtrace next time. Thanks, Xiaolong > >> >> To reproduce: >> >> git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git >> cd lkp-tests >> bin/lkp qemu -k job-script # job-script is attached in this email >