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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E3326C433EF for ; Tue, 19 Oct 2021 14:19:41 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 6C3F460F9E for ; Tue, 19 Oct 2021 14:19:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 6C3F460F9E Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id F30E5900002; Tue, 19 Oct 2021 10:19:40 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id EE0766B0071; Tue, 19 Oct 2021 10:19:40 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DA761900002; Tue, 19 Oct 2021 10:19:40 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0131.hostedemail.com [216.40.44.131]) by kanga.kvack.org (Postfix) with ESMTP id CE1186B006C for ; Tue, 19 Oct 2021 10:19:40 -0400 (EDT) Received: from smtpin19.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 625BD29DF0 for ; Tue, 19 Oct 2021 14:19:40 +0000 (UTC) X-FDA: 78713395320.19.B791C4E Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by imf21.hostedemail.com (Postfix) with ESMTP id 4FC80D042B71 for ; Tue, 19 Oct 2021 14:19:38 +0000 (UTC) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id D5E571FD66; Tue, 19 Oct 2021 14:19:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1634653178; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=17XfwS65rinqRQ1q6ipG3Hb8XhX7XNxJzO/iLYtDfK8=; b=QpnkvsCK9QJG2NyfNxwehgKhumEq8pDVXnpoMGN8xddkAgH7ZIiQiOX7D9WT2NjdLI/jgt /wzL6qvCxdyIDB6JS9svh59sSk2sZtQWMMNpmX4vXEb+OaoLLk0/hHU8TttGB5C5zksYsg HyUqFZ8b61DP8AYqq0iyHrqA7lj0kLk= Received: from suse.cz (unknown [10.100.201.86]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id A9F6CA3B83; Tue, 19 Oct 2021 14:19:38 +0000 (UTC) Date: Tue, 19 Oct 2021 16:19:38 +0200 From: Michal Hocko To: Vasily Averin Cc: Johannes Weiner , Vladimir Davydov , Andrew Morton , Roman Gushchin , Uladzislau Rezki , Vlastimil Babka , Shakeel Butt , Mel Gorman , cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel@openvz.org Subject: Re: [PATCH memcg 0/1] false global OOM triggered by memcg-limited task Message-ID: References: <6b751abe-aa52-d1d8-2631-ec471975cc3a@virtuozzo.com> <339ae4b5-6efd-8fc2-33f1-2eb3aee71cb2@virtuozzo.com> <687bf489-f7a7-5604-25c5-0c1a09e0905b@virtuozzo.com> <6c422150-593f-f601-8f91-914c6c5e82f4@virtuozzo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: 4FC80D042B71 X-Stat-Signature: fo4doefzncyqghciz1kzjhfwop49wpjz Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=suse.com header.s=susede1 header.b=QpnkvsCK; dmarc=pass (policy=quarantine) header.from=suse.com; spf=pass (imf21.hostedemail.com: domain of mhocko@suse.com designates 195.135.220.29 as permitted sender) smtp.mailfrom=mhocko@suse.com X-Rspamd-Server: rspam02 X-HE-Tag: 1634653178-284840 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue 19-10-21 16:13:19, Michal Hocko wrote: [...] > That patch has to be discuss in its full length. There were other > details I have brought up AFAIU. And btw. thanks for walking through that maze! It is far from trivial with side effects all over the place which far from obvious and heavily underdocumented. -- Michal Hocko SUSE Labs