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=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 DF557C433E1 for ; Fri, 5 Jun 2020 10:12:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BE55F2053B for ; Fri, 5 Jun 2020 10:12:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WNbyLPCR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726496AbgFEKMn (ORCPT ); Fri, 5 Jun 2020 06:12:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38274 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726374AbgFEKMm (ORCPT ); Fri, 5 Jun 2020 06:12:42 -0400 Received: from mail-ej1-x62b.google.com (mail-ej1-x62b.google.com [IPv6:2a00:1450:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5122C08C5C2; Fri, 5 Jun 2020 03:12:40 -0700 (PDT) Received: by mail-ej1-x62b.google.com with SMTP id y13so9490399eju.2; Fri, 05 Jun 2020 03:12:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Gmla3jz6Kkr9uVaBKzvCnpBi+8IppeZfJDcPG5ZX28U=; b=WNbyLPCRsJmf1YlpyWo1p7SVjWu10iT+AetIv5DsyVOLJfZ4Nk5sopUPSo3dKsGrU1 0jSDv1crDK7hxBLc5oGC5m30fmptu5zJLK+9lUC7dgv8w2pxN25Vjbr5TJK3EorEIsi1 VgoIWkA2W9M6DcN0M27tm8/1/aMgGtBFSul5+ZXl0zDsBGBYvJnAigWMWaxJgI+s3V5f 6ZDmPRzAw6nEMJ/xIoFMVqm9TrZqK0eN+ZpkYecJmyZuOb5kU/Nw7yTQCivwfzF8cR9M QkOyfu7omWazlrN49f6Q5cpf34OMvyuxMtsubcIBCKWoNGDevE2QuiWYjtE6vFKdhVo2 B1Jg== 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=Gmla3jz6Kkr9uVaBKzvCnpBi+8IppeZfJDcPG5ZX28U=; b=E/7M08P6HhExOXytnFWMu9lycMTZoUrgerdOeYDN3F3p3sqX3zA/oXMR9NgCYRb4BA dSnAg556lGArARYfZtMUbN1sWfrjbYF+pm5deTJcvAzEmHMshQa1G5UtuknFtBN/cibH u/qpAjwnkhyOFbjYwQq6f3AmiyhJeMKoj1w8TgAFKdQlemLVqZ2ODa35WZwaaTknyeWZ YxoQ7aIjhz7bUEsrdON2iNbRopH+XZuIl9wgJONJTDEAjxxQQBdZJNgcgoXPHwz5yFAQ JaMt7sLHJgZwI7ecgQws+V9knbQ5zBJkZOmzSDEsTfgAeXXV7UOCWOMgZvN+CM7irrmc 3OCg== X-Gm-Message-State: AOAM533/M4JCIVVn6SK0H3rUo9Cmxj5gbIkQiI5Acivy2YVaGOXGS0z2 Fl+o7FQ2i915SDBPlu0nsxfkHguPPKM66cAzT0o= X-Google-Smtp-Source: ABdhPJxtUUhL5yN4OVcYr8Ri88ijWHipQ1pLLHkzK1pCS6nlAamgs/eIS5Qs17Y0fonXqMGA7PRFrzF29Mb4sYrdqv4= X-Received: by 2002:a17:906:198d:: with SMTP id g13mr7814691ejd.281.1591351959507; Fri, 05 Jun 2020 03:12:39 -0700 (PDT) MIME-Version: 1.0 References: <4781d250-9a29-cef3-268d-7d83c98bf16a@gmail.com> <20200605032014.GA4455@paulmck-ThinkPad-P72> In-Reply-To: <20200605032014.GA4455@paulmck-ThinkPad-P72> From: Vladimir Oltean Date: Fri, 5 Jun 2020 13:12:28 +0300 Message-ID: Subject: Re: stress-ng --hrtimers hangs system To: paulmck@kernel.org Cc: linux-rt-users@vger.kernel.org, lkml , rcu@vger.kernel.org, Colin King Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Paul, On Fri, 5 Jun 2020 at 06:20, Paul E. McKenney wrote: > > > That agrees with my interpretation of the stall warning message. > > On the rest, I must defer to others. > > Thanx, Paul > Thanks, always good to have a confirmation from you! FWIW, the system has survived an overnight run with sched_rt_runtime_us set to 80%, I don't know if there's more to it. Regards, -Vladimir