Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp485642pxj; Thu, 10 Jun 2021 05:47:04 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxkiYAyLQ7EWxclcyg2crBBI8b/UIR3EUHY2k7P4+tTJTL24Quxjg0Uftq21VgMq7TXE9rU X-Received: by 2002:aa7:d294:: with SMTP id w20mr4580742edq.229.1623329223929; Thu, 10 Jun 2021 05:47:03 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1623329223; cv=none; d=google.com; s=arc-20160816; b=V9BOUdfvj9qWEWYLOH0hfTvhB3RwUBFno31GjvzB7H8FiFbtsL0osUASWY5zoLKqqc COwOHKSsJ3amL4+j8WT/xD8rDLX/3R6Q4QOknZtYo4Q0WV32CBQEFc0a5q06NNbxKRYJ TY8OkZuDhROkRiIThT/+qz283qaBjSUKAx1DGYg/EjMWIZzyn3yFSJL841+uJnZbAq5d TEJ5Y6tH7UV/6K/PNjHu9vHwde8YmKOZocMUnk0q/4/xPZrFb1bcjEJke0gtRspyQhlQ 0YegS55u/Ovg5m5XxIvtshCQAdZF+MkikzT0Luww8sy1WTYOA2SJiUywTBXHkDX7XpCw 3Z2A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=hEJqmzVa3+J6o6UKU4lgHo91Lw4IYVXyD67GtqqB0fQ=; b=k2s05F2uzdZqbLdiyIT4Mzx+Dv+o0tPqO31ghXA2/UHpeEyXjktWCWiXpRRMjn4KG6 +Vdv6yxM5Dpv/M/LYydJ6TcHc+/XNKlzmnVZf6/Ushoq1SdXPYezD9CVDGh6tcRTBOwY 2bqHK1Vklb09d5/5McIhg9uaNC0h0bTIM0F40mq+6DeNlzODU8rLI/QwmBlbO9c7exaM AHVuFY2r5fSKWX/iXkTJWUmY74HNqU7fYlgktE4j5U2WLTGZcel2rBP1wpTmRXLzNfXm KASxYXjIOTVlrkZbsmr9wU7U6ai9Igda6ZF+s+qg44HwtvmR5nqnVC5Xd4UkQ19nOYPu nWTQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@suse.com header.s=susede1 header.b=cSqUzEfU; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=suse.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id e5si2085104ejl.222.2021.06.10.05.46.40; Thu, 10 Jun 2021 05:47:03 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.com header.s=susede1 header.b=cSqUzEfU; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=suse.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230113AbhFJMpH (ORCPT + 99 others); Thu, 10 Jun 2021 08:45:07 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]:57024 "EHLO smtp-out1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230084AbhFJMpG (ORCPT ); Thu, 10 Jun 2021 08:45:06 -0400 Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 8B00D21A44; Thu, 10 Jun 2021 12:43:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1623328989; 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=hEJqmzVa3+J6o6UKU4lgHo91Lw4IYVXyD67GtqqB0fQ=; b=cSqUzEfUAsz7xtFrqEbjZ/qCY6Dys74/JJXE4yu5J/T22VuHe2m65wSK7mIBakkSzamWcy iUCHqac0vSJUkIho8vg0EBrme4WIn1E9sa/wgu+zNkF6/npBeKZ6ShwMsSENy/3xHWV7Yn sGqnnItwYfdJ/3x0JMHyC50diA6Pl6U= 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 45A70A4293; Thu, 10 Jun 2021 12:43:08 +0000 (UTC) Date: Thu, 10 Jun 2021 14:43:08 +0200 From: Michal Hocko To: Aaron Tomlin Cc: Waiman Long , Shakeel Butt , Linux MM , Andrew Morton , Vlastimil Babka , LKML Subject: Re: [RFC PATCH] mm/oom_kill: allow oom kill allocating task for non-global case Message-ID: References: <6d23ce58-4c4b-116a-6d74-c2cf4947492b@redhat.com> <353d012f-e8d4-c54c-b33e-54737e1a0115@redhat.com> <20210609143534.v65qknfihqimiivd@ava.usersys.com> <20210610122323.6geriip66jjmdstj@ava.usersys.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210610122323.6geriip66jjmdstj@ava.usersys.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu 10-06-21 13:23:23, Aaron Tomlin wrote: [...] > Anyhow, I think we should exclude tasks that have MMF_OOM_SKIP applied in > dump_tasks() as it could be misleading. Well, I am not sure this is a good thing in general. We do not want to hide tasks. We already do display oom_score_adj_min even though they are not eligible and that can serve a good purpose from my experience. It gives us some picture at least. Maybe a flag to mark all uneligible tasks would be something useful but I wouldn't drop them from the list. -- Michal Hocko SUSE Labs