From owner-freebsd-current@freebsd.org Sun Apr 1 20:01:30 2018 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0935CF782DD for ; Sun, 1 Apr 2018 20:01:30 +0000 (UTC) (envelope-from marklmi26-fbsd@yahoo.com) Received: from sonic310-14.consmr.mail.bf2.yahoo.com (sonic310-14.consmr.mail.bf2.yahoo.com [74.6.135.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id A66C97B292 for ; Sun, 1 Apr 2018 20:01:29 +0000 (UTC) (envelope-from marklmi26-fbsd@yahoo.com) X-YMail-OSG: xkjOqUwVM1l_Shu6f99Pmd7oit2KhEIZsaJeUCaF3j4tPdw65c7HKo.U5MAOJZW KTQmRIh7mB98wYCjYO.MrN5..JVidr2.VyHnb4Da1Y7rfP6V_HSUuZ.9Jewb8B47r7AgQiiAdcvx 5tQbuZIhugeZDgGo8Np7tTgoAvv_z0pSCzw8Qvc1_DFF55XjDAU586gAwJRsACOlHbvKSH9c7hHl SDTL1URt0Rk7iHEEtBMrnihsnZSSZgVKzeOdc5eV5jBLMvo.6W5FSHuA3HF2PwiRbBHm7QiFK264 XY.DwilkoTl6NRUgtETPOQ3oSq0F82j3ranjjrogicXVgM0frHs.k6_qFL8MgQ_QMDIBwDGizCSS 0fgt55Y0VIAQkR2D339SsItKFXdV3KupZoX1SPTgLTfmWOGdHa_.GpuGh0Uq1ISUK4tc3s3WOgGM du_gg3Vs_efeGewSUYqQZvF3rLUt0t_OTGcWviQarYhI6OTLnBuM4HpVAVd9JV2Ov12zbIOiHltp .eiIAqolSyjtQRcNjmwP8P9VriUzFS4vRrvml Received: from sonic.gate.mail.ne1.yahoo.com by sonic310.consmr.mail.bf2.yahoo.com with HTTP; Sun, 1 Apr 2018 20:01:23 +0000 Received: from c-76-115-7-162.hsd1.or.comcast.net (EHLO [192.168.1.25]) ([76.115.7.162]) by smtp418.mail.bf1.yahoo.com (Oath Hermes SMTP Server) with ESMTPA ID a37099a88f07b9a4169586ebfe0c9b41 for ; Sun, 01 Apr 2018 20:01:22 +0000 (UTC) From: Mark Millard Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Mac OS X Mail 11.3 \(3445.6.18\)) Subject: Re: Strange ARC/Swap/CPU on yesterday's -CURRENT Message-Id: <7CEC1272-7C77-45F7-A5B7-56AE8CC0621B@yahoo.com> Date: Sun, 1 Apr 2018 13:01:20 -0700 To: FreeBSD Current X-Mailer: Apple Mail (2.3445.6.18) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 01 Apr 2018 20:01:30 -0000 Andriy Gapon avg at FreeBSD.org wrote on Tue Mar 27 14:00:20 UTC 2018 : > First, it looks like maybe several different issues are being discussed and > possibly conflated in this thread. It looks like one of the issues that contributes to non-ZFS contexts seeing process-kills for out-of-swap when there is plenty left has been identified in the code for head. See: https://lists.freebsd.org/pipermail/svn-src-head/2018-April/111629.html It looks like Mark Johnston will be checking something in to help but there is more to do after that for what was identified. Overall about the reporting: Despite lots of hypothesizing beyond the evidence presented, I'm glad for the reports of issues from multiple types of environments and to known of types of contexts multiple folks have seen somewhat similar problems with. Separating issues out can be difficult and time consuming. Knowing what all needs eventual coverage helps guide things as progress is made. This is true even for those that are just looking to pick up the eventual fix(es) for the problem(s) they happen to have run into. === Mark Millard marklmi26-fbsd at yahoo.com ( dsl-only.net went away in early 2018-Mar)