From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752387AbdLGXEH (ORCPT ); Thu, 7 Dec 2017 18:04:07 -0500 Received: from mx0a-00010702.pphosted.com ([148.163.156.75]:51342 "EHLO mx0b-00010702.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750862AbdLGXEG (ORCPT ); Thu, 7 Dec 2017 18:04:06 -0500 References: <20171129175605.GA863@jcartwri.amer.corp.natinst.com> <20171206234622.GZ3326@worktop> <87y3mf8f1j.fsf@ni.com> <20171207104516.ljmivyqx7yrthflu@hirez.programming.kicks-ass.net> <20171207142648.n4h3vzyajw2zlxv2@hirez.programming.kicks-ass.net> <87mv2ur3ew.fsf@kerf.amer.corp.natinst.com> <20171207195052.GG18445@jcartwri.amer.corp.natinst.com> User-agent: mu4e 0.9.19; emacs 25.3.1 From: Gratian Crisan To: Julia Cartwright Cc: Gratian Crisan , Peter Zijlstra , Thomas Gleixner , linux-kernel@vger.kernel.org, Darren Hart , Ingo Molnar Subject: Re: PI futexes + lock stealing woes In-reply-to: <20171207195052.GG18445@jcartwri.amer.corp.natinst.com> Date: Thu, 07 Dec 2017 17:02:40 -0600 Message-ID: <87lgieqgz3.fsf@kerf.amer.corp.natinst.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [130.164.62.230] X-ClientProxiedBy: MWHPR22CA0063.namprd22.prod.outlook.com (2603:10b6:300:12a::25) To MWHPR0401MB3593.namprd04.prod.outlook.com (2603:10b6:301:78::32) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 5e094344-1769-480c-95b3-08d53dc6ba3b X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:(5600026)(4604075)(4534020)(4602075)(4627115)(201703031133081)(201702281549075)(2017052603307);SRVR:MWHPR0401MB3593; 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Could you give >> > it a spin? >> >> Thank you! Yes, I'll start a test now. > > I gave it a spin with my minimal reproducing case w/ the strategic > msleep(). Previously, I could reproduce it in less than a minute in > that setup; now it's been running for a couple hours. So ... looks > good? :) Yep ... looks good to me. I've been running two targets with the original reproducer for 8 hours now plus a target running the C test. All of them are still going. I'm going to let them run overnight to make sure but I'm going to call it fixed. -Gratian