From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-2849864-1516323655-3-7885688769561648258 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no ("Email failed DMARC policy for domain") X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='uk', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-IgnoreVacation: yes ("Email failed DMARC policy for domain") X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1516323655; b=fwqfEx4GzJuMg+41RN8D/4BboawlmUtLbpWhFmCnab/kVai LHs2Ni+N0KMf1tScAMnkf5U9e17+vstVVyfLGHUWFlb+bomKhDLz98UYaUjBn/j1 UzKn+lSDAgrnMRyyhNedMM/M5hCfuSJ3EJVcnW1CHZrustZTMH89Js/xl0uJJYqF jnhr7latIcMDlD9H909lHlkoUDnl0hlZ2YNqXfKdyyPFoeugNn6rDEDlXPM4Z+D1 w8T8SAATb9a7KvD38gRI2OF6LOrbVO4CBB4uKJtj/YjBGO3q7qdoHX32CwWeZQes LAKQnghNvHy6w98BEeB2OCfmyniatlG6Idqsq9Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=message-id:subject:from:to:cc:date :in-reply-to:references:content-type:mime-version :content-transfer-encoding:sender:list-id; s=arctest; t= 1516323655; bh=4edw0F77pSo5XAowuPBe9vXvBP79ivBGVHUdb3CA8go=; b=B 4nDYNoob7m+65nht6onQhljF4mWniXywWGO1LH85yHs1vBdQye/zjLul33/UZrl7 RGIilS9eazV+f++7tqO1LeFFPn9Klxv096cGlnh2Sd1Jo3/Iu2osm+95CRJiGFwD sh89lZcNwdt8MA3+yKtJEaQ5tbyOtJXPOsxnERprQdetlxo0Y4+evKXpKzl+Aw4C 7Wb3p1h9Yx+KJlJD2cm4UTn26gVP0gDPdXOregWfLELGFtLkBfisRyrQigUThcNG 8LHAzZNGGhmNjocO+6iRdWD396FAbEJAL20Ayu7SDk8Ho1906s0WdcmHAcnl/Iba 0i05JVRQiRsY5BlrSGEqA== ARC-Authentication-Results: i=1; mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=fail (p=none,has-list-id=yes,d=none) header.from=codethink.co.uk; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=codethink.co.uk header.result=pass header_is_org_domain=yes Authentication-Results: mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=fail (p=none,has-list-id=yes,d=none) header.from=codethink.co.uk; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=codethink.co.uk header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754953AbeASBAv (ORCPT ); Thu, 18 Jan 2018 20:00:51 -0500 Received: from imap1.codethink.co.uk ([176.9.8.82]:43754 "EHLO imap1.codethink.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753476AbeASBAu (ORCPT ); Thu, 18 Jan 2018 20:00:50 -0500 Message-ID: <1516323645.3417.5.camel@codethink.co.uk> Subject: Re: [PATCH 4.4 045/115] sched/deadline: Throttle a constrained deadline task activated after the deadline From: Ben Hutchings To: Greg Kroah-Hartman , linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org, Daniel Bristot de Oliveira , "Peter Zijlstra (Intel)" , Juri Lelli , Linus Torvalds , Luca Abeni , Mike Galbraith , Romulo Silva de Oliveira , Steven Rostedt , Thomas Gleixner , Tommaso Cucinotta , Ingo Molnar , Sasha Levin Date: Fri, 19 Jan 2018 01:00:45 +0000 In-Reply-To: <20171218152855.351654393@linuxfoundation.org> References: <20171218152851.886086917@linuxfoundation.org> <20171218152855.351654393@linuxfoundation.org> Organization: Codethink Ltd. Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.22.6-1+deb9u1 Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On Mon, 2017-12-18 at 16:48 +0100, Greg Kroah-Hartman wrote: > 4.4-stable review patch.  If anyone has any objections, please let me > know. > > ------------------ > > From: Daniel Bristot de Oliveira > > > [ Upstream commit df8eac8cafce7d086be3bd5cf5a838fa37594dfb ] [...] I think this needs another fix on top: commit ae83b56a56f8d9643dedbee86b457fa1c5d42f59 Author: Xunlei Pang Date:   Wed May 10 21:03:37 2017 +0800     sched/deadline: Zero out positive runtime after throttling constrained tasks There's another fix related to this, but it doesn't appear to fix a regression and I don't know how critical it is: commit 3effcb4247e74a51f5d8b775a1ee4abf87cc089a Author: Daniel Bristot de Oliveira Date:   Mon May 29 16:24:03 2017 +0200     sched/deadline: Use the revised wakeup rule for suspending constrained dl tasks Ben. -- Ben Hutchings Software Developer, Codethink Ltd.