From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f69.google.com (mail-pg0-f69.google.com [74.125.83.69]) by kanga.kvack.org (Postfix) with ESMTP id 991D86B0006 for ; Thu, 29 Mar 2018 06:32:18 -0400 (EDT) Received: by mail-pg0-f69.google.com with SMTP id v14so3649983pgq.11 for ; Thu, 29 Mar 2018 03:32:18 -0700 (PDT) Received: from www262.sakura.ne.jp (www262.sakura.ne.jp. [202.181.97.72]) by mx.google.com with ESMTPS id a7-v6si988002plp.22.2018.03.29.03.32.17 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 29 Mar 2018 03:32:17 -0700 (PDT) Subject: Re: [lkp-robot] [mm] 67ffc906f8:WARNING:at_mm/filemap.c:#__warn_lock_page_from_reclaim_context From: Tetsuo Handa References: <201803181022.IAI30275.JOFOQMtFSHLFOV@I-love.SAKURA.ne.jp> <20180329070409.GF4172@yexl-desktop> In-Reply-To: <20180329070409.GF4172@yexl-desktop> Message-Id: <201803291932.AJH35913.JOQSFFtOLFOVHM@I-love.SAKURA.ne.jp> Date: Thu, 29 Mar 2018 19:32:11 +0900 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linux-mm@kvack.org List-ID: To: xiaolong.ye@intel.com, lkp@01.org Cc: kirill@shutemov.name, akpm@linux-foundation.org, linux-mm@kvack.org, kirill.shutemov@linux.intel.com, mhocko@suse.com kernel test robot wrote: > FYI, we noticed the following commit (built with gcc-4.9): > > commit: 67ffc906f8dee0e0433cad83dbdd198e5d1fc86f ("mm: Warn on lock_page() from reclaim context.") > url: https://github.com/0day-ci/linux/commits/Tetsuo-Handa/mm-Warn-on-lock_page-from-reclaim-context/20180318-173622 Thanks. Already fixed in v4.16-rc7. commit b3cd54b257ad95d344d121dc563d943ca39b0921 Author: Kirill A. Shutemov Date: Thu Mar 22 16:17:35 2018 -0700 mm/shmem: do not wait for lock_page() in shmem_unused_huge_shrink() > [ 60.850212] CPU: 0 PID: 221 Comm: sed Not tainted 4.16.0-rc4-00340-g67ffc90 #2