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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 7A221C43143 for ; Thu, 13 Sep 2018 18:16:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 20E35204EC for ; Thu, 13 Sep 2018 18:16:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=digitalocean.com header.i=@digitalocean.com header.b="SeGyiGCx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 20E35204EC Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=digitalocean.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728057AbeIMX1H (ORCPT ); Thu, 13 Sep 2018 19:27:07 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:42833 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726821AbeIMX1H (ORCPT ); Thu, 13 Sep 2018 19:27:07 -0400 Received: by mail-pf1-f193.google.com with SMTP id l9-v6so3029163pff.9 for ; Thu, 13 Sep 2018 11:16:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=digitalocean.com; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=yDYpIWL93vJZrcgkcDELYHIQ9E3tcqiIXB6NTHCqFD4=; b=SeGyiGCxgenv+yjr9moQIDA/wFF7VCCnUJ+pJjsrXE3HD/IXxldPqmNzM6601X6aEu HXBoTw/aCQh+/tLQZ7FZPDLzzs1+z19WC57KBY3Oz8C4V3OUBgju+l1sJxo1xbKx8iCI ewQMFRp9RDxJbJmIO2IE3qXbhQYHje9SZNmp8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=yDYpIWL93vJZrcgkcDELYHIQ9E3tcqiIXB6NTHCqFD4=; b=IIh7NAO1gIgxVY1480Wxp9M3UJ4zWpzP1WLn1nzokHLagD+Cb3i4ZahVh1DqCBEY2x tE4QWRad2ADhi3RJBawtQTXpocr7d12L1QsgJmNIvrLRJwn6/Au1H+tgCcjdc0ItTQ0M s8/e8KtGJX58pxXKwyJ8OrvOmo+MYYIIMUmpdS2bG45FR6tjAh6Uyw2lxu5sV0FFHpuz 3XkTGhjRgYg+xoNTduP6NV9GRX/m7V2AvOVlZE4QGwTgCKu+zA7vUNGl6u/vemNtgzsY KJQWDu6HrgIobs9et4FKgag4sp1Uht20NEm7abrPIVvNqj54j4Znr475wrInJai7Nryy C58Q== X-Gm-Message-State: APzg51BaWuhAGmukEgHUuHky/ghDgDVJmP1jX0gvmTSdnCqqWtvcFPeE bdwmdiAmhxFfO2uO22zOysd5LUceQZQ= X-Google-Smtp-Source: ANB0Vda5hdQj//4+V178H1dqavo6CpmOmPKv+zYYIBAdAkWAak+rPcc/IY/TCjsnXF82KuC5icU1bA== X-Received: by 2002:a62:8a4f:: with SMTP id y76-v6mr8511415pfd.233.1536862589616; Thu, 13 Sep 2018 11:16:29 -0700 (PDT) Received: from breakout.internal.digitalocean.com (97-120-204-225.ptld.qwest.net. [97.120.204.225]) by smtp.gmail.com with ESMTPSA id w12-v6sm6543737pfd.110.2018.09.13.11.16.28 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 13 Sep 2018 11:16:29 -0700 (PDT) Received: by breakout.internal.digitalocean.com (Postfix, from userid 1000) id EB7918A2A78; Thu, 13 Sep 2018 11:16:27 -0700 (PDT) Date: Thu, 13 Sep 2018 11:16:27 -0700 From: Nishanth Aravamudan To: Jan =?iso-8859-1?Q?H=2E_Sch=F6nherr?= Cc: Ingo Molnar , Peter Zijlstra , linux-kernel@vger.kernel.org Subject: Re: [RFC 00/60] Coscheduling for Linux Message-ID: <20180913181627.GA29148@breakout> References: <20180907214047.26914-1-jschoenh@amazon.de> <20180912002449.GA21797@breakout> <20180912231535.GA1546@breakout> <5490845c-3f71-8487-8580-87b18a639ecd@amazon.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <5490845c-3f71-8487-8580-87b18a639ecd@amazon.de> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 13.09.2018 [13:31:36 +0200], Jan H. Schönherr wrote: > On 09/13/2018 01:15 AM, Nishanth Aravamudan wrote: > > [...] if I just try to set machine's > > cpu.scheduled to 1, with no other changes (not even changing any child > > cgroup's cpu.scheduled yet), I get the following trace: > > > > [16052.164259] ------------[ cut here ]------------ > > [16052.168973] rq->clock_update_flags < RQCF_ACT_SKIP > > [16052.168991] WARNING: CPU: 59 PID: 59533 at kernel/sched/sched.h:1303 assert_clock_updated.isra.82.part.83+0x15/0x18 > [snip] > > This goes away with the change below (which fixes patch 58/60). Yep, I can confirm this one as well, is now fixed. -Nish