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=-7.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 10E3DC47082 for ; Mon, 7 Jun 2021 20:44:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DCC4761139 for ; Mon, 7 Jun 2021 20:44:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230421AbhFGUqJ (ORCPT ); Mon, 7 Jun 2021 16:46:09 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:40346 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230385AbhFGUqH (ORCPT ); Mon, 7 Jun 2021 16:46:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1623098655; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=p14sNsrf29IyrlDe2puU05DlPkcSP+alqHwSenkYXkY=; b=aFq5EjMX8HTiAoV3Psdg0f81F+9kOhLVwJwbjxfdkzIaGfZZGQzGq1Khd4vOG8TNMa3Geg SH3mAkAsGIz2zmm5b+g6TxTHsoHmNxxARv129/KtP2cOqPNI//k4YUWV8mHtBgIcIABTuC F67u9KjQxLZvwYreezizdwOkzjwHJTg= Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-263-ObgzTngaMxiOWESpZs8Q7Q-1; Mon, 07 Jun 2021 16:44:11 -0400 X-MC-Unique: ObgzTngaMxiOWESpZs8Q7Q-1 Received: by mail-qk1-f198.google.com with SMTP id u9-20020a05620a4549b02902e956c2a3c8so13612187qkp.20 for ; Mon, 07 Jun 2021 13:44:11 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:subject:to:cc:references:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=p14sNsrf29IyrlDe2puU05DlPkcSP+alqHwSenkYXkY=; b=t1RdozWwaKNUjx39Ub3P2aw/zhA3NVdicby2fXBz1ATlyyyKyhlGglQgRr9HpiElB3 a4RY9sb2YC8RTRsp4fCa/Mj7UXEq4/49e1w8RfPoWHvFmZkp++q8zpGeo8yKJjlv/teR SnIWEj6+tcRBRx6MCALn40+OvnGzMu8XQ6sjCh3TV4g2KSPUo1FyrufhCCOyDxmnEQAb Q2AA8DtBt0WzeyUqRMnoCM8kTU8yGNVh3LUzL3hpPsLPWjRClac2aCpqxwGJYU7kX8hK bUY8C79mPAz6V7FZF9TN8DlnMR8MfORrY6L1zq7KA/iEo9zfCO5pRcs0HVz7Wq8p6Cn3 s8dw== X-Gm-Message-State: AOAM531Ojjq6Lno+UcA72uL9ePhY2u0CdINopYX7nYagd0x8dirnGjRd xX6urqe6w4Wpii4BtMN7UDsbxy7CbYzGLldRmzkH9Tuf/YVto2qB3qcCcFmDovd2b3R23qL3sNS e52NB+ccsxMpuDXfg+6lHo+KcgmwAUwh2wVGOS/etC7vZiO9HdUIQPgicxIsOXB7nbLiD0JpV X-Received: by 2002:a37:62d6:: with SMTP id w205mr11912921qkb.194.1623098650611; Mon, 07 Jun 2021 13:44:10 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzK1WDso3vmPdDtpFovWOfgu2bFxxCdtZ8LEgH4YYixyaYGsL3i1AJn3TUMi8viuAD/dKzRCw== X-Received: by 2002:a37:62d6:: with SMTP id w205mr11912900qkb.194.1623098650386; Mon, 07 Jun 2021 13:44:10 -0700 (PDT) Received: from llong.remote.csb ([2601:191:8500:76c0::cdbc]) by smtp.gmail.com with ESMTPSA id m18sm4353002qtk.80.2021.06.07.13.44.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 07 Jun 2021 13:44:09 -0700 (PDT) From: Waiman Long X-Google-Original-From: Waiman Long Subject: Re: [RFC PATCH] mm/oom_kill: allow oom kill allocating task for non-global case To: Michal Hocko , Waiman Long Cc: Shakeel Butt , Aaron Tomlin , Linux MM , Andrew Morton , Vlastimil Babka , LKML References: <20210607163103.632681-1-atomlin@redhat.com> <6d23ce58-4c4b-116a-6d74-c2cf4947492b@redhat.com> Message-ID: <353d012f-e8d4-c54c-b33e-54737e1a0115@redhat.com> Date: Mon, 7 Jun 2021 16:44:09 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.9.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/7/21 4:03 PM, Michal Hocko wrote: > On Mon 07-06-21 21:36:47, Michal Hocko wrote: >> On Mon 07-06-21 15:18:38, Waiman Long wrote: > [...] >>> A partial OOM report below: >> Do you happen to have the full report? >> >>> [ 8221.433608] memory: usage 21280kB, limit 204800kB, failcnt 49116 >>>   : >>> [ 8227.239769] [ pid ]   uid  tgid total_vm      rss pgtables_bytes swapents oom_score_adj name >>> [ 8227.242495] [1611298]     0 1611298    35869      635 167936        0         -1000 conmon >>> [ 8227.242518] [1702509]     0 1702509    35869      701 176128        0         -1000 conmon >>> [ 8227.242522] [1703345] 1001050000 1703294   183440        0 2125824        0           999 node >>> [ 8227.242706] Out of memory and no killable processes... >>> [ 8227.242731] node invoked oom-killer: gfp_mask=0x6000c0(GFP_KERNEL), nodemask=(null), order=0, oom_score_adj=999 > Btw it is surprising to not see _GFP_ACCOUNT here. There are a number of OOM kills in the kernel log and none of the tasks that invoke oom-killer has _GFP_ACCOUNT flag set. Regards, Longman