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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 BE78BC33CA2 for ; Fri, 10 Jan 2020 06:13:08 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 6916D2073A for ; Fri, 10 Jan 2020 06:13:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=colorremedies-com.20150623.gappssmtp.com header.i=@colorremedies-com.20150623.gappssmtp.com header.b="ChNabGW9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6916D2073A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=colorremedies.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id AB6A48E0005; Fri, 10 Jan 2020 01:13:07 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id A66A48E0001; Fri, 10 Jan 2020 01:13:07 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 956628E0005; Fri, 10 Jan 2020 01:13:07 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0084.hostedemail.com [216.40.44.84]) by kanga.kvack.org (Postfix) with ESMTP id 7D5428E0001 for ; Fri, 10 Jan 2020 01:13:07 -0500 (EST) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with SMTP id 1FEF8180AD806 for ; Fri, 10 Jan 2020 06:13:07 +0000 (UTC) X-FDA: 76360706814.08.glue55_727d269134228 X-HE-Tag: glue55_727d269134228 X-Filterd-Recvd-Size: 3433 Received: from mail-wm1-f65.google.com (mail-wm1-f65.google.com [209.85.128.65]) by imf44.hostedemail.com (Postfix) with ESMTP for ; Fri, 10 Jan 2020 06:13:06 +0000 (UTC) Received: by mail-wm1-f65.google.com with SMTP id p17so693229wma.1 for ; Thu, 09 Jan 2020 22:13:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=colorremedies-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=tUDRt1gGC4mh6ffwVnAdN26bIHFDTN+i44a4l81mRvo=; b=ChNabGW9W7Q5fkNiUluwbIjNCkDhdanE/7JuhW/Ry7/v1PskHPy646TiXqgpLKmZc5 2neoIEamLIFVVhZoFdq9OPQ6tq3OuCYhrvQeOchgA2FFcpxFF68PGaroeIKJUCRATDpN Y9HHbgZoBiy81IQohpSA3xvZBI46tP+F/gxE3eDQTK/W5E4/DyhoxjL/GFPVNALavLo4 jbwlfvwA0iLZ3VsdR7klsrUOU+45M/AbSgfbq1XUzfo7MYRd8ugS9VB4XqZ85VbqdZBW guLWIWOSuZED1OtwNKDnRjJWPjd+VLz6H4WeOJETUhkc/KmRXzYOyHSBAgm5PfOZ65nP tQ4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=tUDRt1gGC4mh6ffwVnAdN26bIHFDTN+i44a4l81mRvo=; b=Q6zy12gKySPV/S0wXTlmahlD6lSejOXYvhuEFFl9EXPoT3+4dEe+Agjicms3NFQcTJ AXpRkez/QvJoPndOoRvLFdiDLT980/3MOFquWRBknkIOPYP7CtPhzQMUOEvRDZb/Ehwc R+kptt0ZSuZvljLzBTjZMnHbpYuqJA4QeTQydCXoPddCbpEVgHgziqQcy2d9oImqeH+J zhD5ghK4wRWOLYb+vGg1B3uMwtroai5en9b/ePhyxgTnNFvTCocOUeO9RnXY22O0AC6J bXxHy5LmXDWY9XILu4fUjjyLm/I5jxArw5DomCSwhkgX2MJgAs5Kue0HnhY8GZgnPjKG tXIA== X-Gm-Message-State: APjAAAW4iiByHqC7xmf5leVHDCQeiINwpg2mj7uNxz8VkOLeZHAVlk8J +mwTL5L5MaDMGn7chW1WMnENiHWSo/cu02ADhUj8qGSYQe8JcA== X-Google-Smtp-Source: APXvYqzci1zqAzlNTThoFCEYxzOW+6n/Ya2zIbJJ6lWE0lbwRs4/MOgbp7zHa9Qf9eHQVRU8ObiYIFmNXlks7yxQHhY= X-Received: by 2002:a05:600c:294:: with SMTP id 20mr1981688wmk.97.1578636785347; Thu, 09 Jan 2020 22:13:05 -0800 (PST) MIME-Version: 1.0 References: <20200107205824.GM32178@dhcp22.suse.cz> <20200108092501.GO32178@dhcp22.suse.cz> <20200109115147.GP4951@dhcp22.suse.cz> <20200109115327.GQ4951@dhcp22.suse.cz> In-Reply-To: <20200109115327.GQ4951@dhcp22.suse.cz> From: Chris Murphy Date: Thu, 9 Jan 2020 23:12:49 -0700 Message-ID: Subject: Re: user space unresponsive, followup: lsf/mm congestion To: Michal Hocko Cc: Chris Murphy , linux-mm@kvack.org Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.003798, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Jan 9, 2020 at 4:53 AM Michal Hocko wrote: > > On Thu 09-01-20 12:51:48, Michal Hocko wrote: > > > I've updated the bug, attaching kernel messages and /proc/vmstate in > > > 1s increments, although quite often during the build multiple seconds > > > of sampling were just skipped as the system was under too much > > > pressure. > > > > I have a tool to reduce that problem (see attached). > > Now for real https://bugzilla.kernel.org/show_bug.cgi?id=206117#c6 -- Chris Murphy