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,URIBL_BLOCKED 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 126C5C43334 for ; Thu, 6 Sep 2018 00:36:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C738420857 for ; Thu, 6 Sep 2018 00:36:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C738420857 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.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 S1726404AbeIFFJS (ORCPT ); Thu, 6 Sep 2018 01:09:18 -0400 Received: from mga07.intel.com ([134.134.136.100]:62427 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725830AbeIFFJS (ORCPT ); Thu, 6 Sep 2018 01:09:18 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Sep 2018 17:36:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,334,1531810800"; d="scan'208";a="86376567" Received: from shao2-debian.sh.intel.com (HELO [10.239.13.4]) ([10.239.13.4]) by fmsmga004.fm.intel.com with ESMTP; 05 Sep 2018 17:36:35 -0700 Subject: Re: [LKP] 3f906ba236 [ 71.192813] WARNING: possible circular locking dependency detected To: Thomas Gleixner Cc: Peter Zijlstra , Linux Memory Management List , Andrew Morton , LKP , LKML References: <20180905090553.GA6655@shao2-debian> From: Rong Chen Message-ID: <7f0deb2e-f946-75fb-8ca9-5308fd5e5a9c@intel.com> Date: Thu, 6 Sep 2018 08:37:00 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/05/2018 09:02 PM, Thomas Gleixner wrote: > On Wed, 5 Sep 2018, kernel test robot wrote: > >> Greetings, >> >> 0day kernel testing robot got the below dmesg and the first bad commit is >> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> >> commit 3f906ba23689a3f824424c50f3ae937c2c70f676 >> Author: Thomas Gleixner >> AuthorDate: Mon Jul 10 15:50:09 2017 -0700 >> Commit: Linus Torvalds >> CommitDate: Mon Jul 10 16:32:33 2017 -0700 > So it identified a more than one year old commit. Great. > >> vm86 returned ENOSYS, marking as inactive. 20044 iterations. [F:14867 S:5032 HI:3700] [ 57.651003] synth uevent: /module/pcmcia_core: unknown uevent action string [ 71.189062] [ 71.191953] ====================================================== [ 71.192813] WARNING: possible circular locking dependency detected [ 71.193664] 4.12.0-10480-g3f906ba #1 Not tainted [ 71.194355] ------------------------------------------------------ [ 71.195211] trinity-c0/1666 is trying to acquire lock: [ 71.195958] (mem_hotplug_lock.rw_sem){.+.+.+}, at: show_slab_objects+0x14b/0x440 [ 71.197284] [ 71.197284] but task is already holding lock: > along with completely unparseable information. What am I supposed to do > with this mail? Hi, Attached please find the dmesg/reproduce files in previous mail. please ignore the report if it's a false positive. Best Regards, Rong Chen > > Thanks, > > tglx > _______________________________________________ > LKP mailing list > LKP@lists.01.org > https://lists.01.org/mailman/listinfo/lkp From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============6617708264765089374==" MIME-Version: 1.0 From: Rong Chen To: lkp@lists.01.org Subject: Re: 3f906ba236 [ 71.192813] WARNING: possible circular locking dependency detected Date: Thu, 06 Sep 2018 08:37:00 +0800 Message-ID: <7f0deb2e-f946-75fb-8ca9-5308fd5e5a9c@intel.com> In-Reply-To: List-Id: --===============6617708264765089374== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On 09/05/2018 09:02 PM, Thomas Gleixner wrote: > On Wed, 5 Sep 2018, kernel test robot wrote: > >> Greetings, >> >> 0day kernel testing robot got the below dmesg and the first bad commit is >> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> >> commit 3f906ba23689a3f824424c50f3ae937c2c70f676 >> Author: Thomas Gleixner >> AuthorDate: Mon Jul 10 15:50:09 2017 -0700 >> Commit: Linus Torvalds >> CommitDate: Mon Jul 10 16:32:33 2017 -0700 > So it identified a more than one year old commit. Great. > >> vm86 returned ENOSYS, marking as inactive. 20044 iterations. [F:14867 S:= 5032 HI:3700] [ 57.651003] synth uevent: /module/pcmcia_core: unknown ueven= t action string [ 71.189062] [ 71.191953] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [ 71.192813] WARNING= : possible circular locking dependency detected [ 71.193664] 4.12.0-10480-g= 3f906ba #1 Not tainted [ 71.194355] ---------------------------------------= --------------- [ 71.195211] trinity-c0/1666 is trying to acquire lock: [ 7= 1.195958] (mem_hotplug_lock.rw_sem){.+.+.+}, at: show_slab_objects+0x14b/0x= 440 [ 71.197284] [ 71.197284] but task is already holding lock: > along with completely unparseable information. What am I supposed to do > with this mail? Hi, Attached please find the dmesg/reproduce files in previous mail. please ignore the report if it's a false positive. Best Regards, Rong Chen > > Thanks, > > tglx > _______________________________________________ > LKP mailing list > LKP(a)lists.01.org > https://lists.01.org/mailman/listinfo/lkp --===============6617708264765089374==--