From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-f69.google.com (mail-ed1-f69.google.com [209.85.208.69]) by kanga.kvack.org (Postfix) with ESMTP id A96C28E0038 for ; Thu, 10 Jan 2019 03:41:28 -0500 (EST) Received: by mail-ed1-f69.google.com with SMTP id x15so4092102edd.2 for ; Thu, 10 Jan 2019 00:41:28 -0800 (PST) Received: from mx1.suse.de (mx2.suse.de. [195.135.220.15]) by mx.google.com with ESMTPS id t4-v6si2226659eju.217.2019.01.10.00.41.27 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 10 Jan 2019 00:41:27 -0800 (PST) Date: Thu, 10 Jan 2019 09:41:25 +0100 From: Michal Hocko Subject: Re: memory cgroup pagecache and inode problem Message-ID: <20190110084125.GF31793@dhcp22.suse.cz> References: <15614FDC-198E-449B-BFAF-B00D6EF61155@bytedance.com> <97A4C2CA-97BA-46DB-964A-E44410BB1730@bytedance.com> <9B56B884-8FDD-4BB5-A6CA-AD7F84397039@bytedance.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9B56B884-8FDD-4BB5-A6CA-AD7F84397039@bytedance.com> Sender: owner-linux-mm@kvack.org List-ID: To: Fam Zheng Cc: Yang Shi , cgroups@vger.kernel.org, Linux MM , tj@kernel.org, Johannes Weiner , lizefan@huawei.com, Vladimir Davydov , duanxiongchun@bytedance.com, =?utf-8?B?5byg5rC46IKD?= , liuxiaozhou@bytedance.com On Thu 10-01-19 16:30:42, Fam Zheng wrote: [...] > > 591edfb10a94 mm: drain memcg stocks on css offlining > > d12c60f64cf8 mm: memcontrol: drain memcg stock on force_empty > > bb4a7ea2b144 mm: memcontrol: drain stocks on resize limit > > > > Not sure if they would help out. > > These are all in 4.20, which is tested but not helpful. I would recommend enabling vmscan tracepoints to see what is going on in you case. -- Michal Hocko SUSE Labs