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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 D8245C433DF for ; Tue, 16 Jun 2020 20:46:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B0E1C208B3 for ; Tue, 16 Jun 2020 20:46:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592340415; bh=2dvEAqyxOW3qcudKHZlBAh3MG+XCmSm3T63qebwF9vk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=UfGb6ogCEMVX34N+ewZg0Fh9RSnZjCC5ceznG0mKyC+vk/I5z0/bhA8Y5kB14Rp5T KzuWNp7BylyIw3rVCPnJsbeDozfm/SXQJaaFPRR/VFlVubPvUwZaWW+u/+hJ0IDzcF GPevbpEgKVrj0xx7avZUU8BmlNSuC6cpVllDIsmg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728561AbgFPUqy (ORCPT ); Tue, 16 Jun 2020 16:46:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:45512 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726296AbgFPUqx (ORCPT ); Tue, 16 Jun 2020 16:46:53 -0400 Received: from localhost (lfbn-ncy-1-150-120.w83-194.abo.wanadoo.fr [83.194.232.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id EEC752080D; Tue, 16 Jun 2020 20:46:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592340413; bh=2dvEAqyxOW3qcudKHZlBAh3MG+XCmSm3T63qebwF9vk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=PNtmy1s94C9sPECtyji/NqSJXzBEA2tVsgqMAx0irX0PpQ3zUuO4wwLBSq1qep7Qf GuHSjQyA54IOnPNDpF4Pe0JiaCUiS6Oc7UXkAl1lznHIygYsYocEoY30j5k765MS0K N/SD81SnKiuxXRTFqGuPZ4R2tVF343/nyRqg/sG8= Date: Tue, 16 Jun 2020 22:46:51 +0200 From: Frederic Weisbecker To: Juri Lelli Cc: fweisbec@gmail.com, tglx@linutronix.de, mingo@kernel.org, linux-rt-users@vger.kernel.org, peterz@infradead.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH] tick/sched: update full_nohz status after SCHED dep is cleared Message-ID: <20200616204649.GA4914@lenoir> References: <20200520140402.358880-1-juri.lelli@redhat.com> <20200520162400.GA8800@lenoir> <20200520164925.GM10078@localhost.localdomain> <20200520170215.GB8800@lenoir> <20200520184710.GO10078@localhost.localdomain> <20200521004443.GB15455@lenoir> <20200521170020.GQ10078@localhost.localdomain> <20200615210743.GA21371@lenoir> <20200616065757.GA446382@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200616065757.GA446382@localhost.localdomain> 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 Tue, Jun 16, 2020 at 08:57:57AM +0200, Juri Lelli wrote: > Sure. Let me know if you find anything. I managed to reproduce. With "threadirqs" and without "tsc=reliable". I see tons of spurious TIMER softirqs. Investigation begins! I'll let you know. Thanks!