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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BA6F2C433F5 for ; Fri, 4 Mar 2022 14:41:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239877AbiCDOl5 (ORCPT ); Fri, 4 Mar 2022 09:41:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43108 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237280AbiCDOly (ORCPT ); Fri, 4 Mar 2022 09:41:54 -0500 Received: from gateway24.websitewelcome.com (gateway24.websitewelcome.com [192.185.50.84]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9464C1BD043 for ; Fri, 4 Mar 2022 06:41:07 -0800 (PST) Received: from cm17.websitewelcome.com (cm17.websitewelcome.com [100.42.49.20]) by gateway24.websitewelcome.com (Postfix) with ESMTP id 00C9BA472D for ; Fri, 4 Mar 2022 08:41:07 -0600 (CST) Received: from gator4132.hostgator.com ([192.185.4.144]) by cmsmtp with SMTP id Q95Gnu2ub22u3Q95GnmMIj; Fri, 04 Mar 2022 08:39:06 -0600 X-Authority-Reason: nr=8 Received: from host-82-63-1-3.business.telecomitalia.it ([82.63.1.3]:40134 helo=[10.0.0.45]) by gator4132.hostgator.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1nQ95G-004JWf-54; Fri, 04 Mar 2022 08:39:06 -0600 Message-ID: <9befaa4d-b032-0b26-761e-9e2e06b1a64b@kernel.org> Date: Fri, 4 Mar 2022 15:39:01 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH] tracing/osnoise: Force quiescent states while tracing Content-Language: en-US To: Nicolas Saenz Julienne Cc: mingo@redhat.com, linux-kernel@vger.kernel.org, mtosatti@redhat.com, paulmck@kernel.org, rostedt@goodmis.org References: <20220228141423.259691-1-nsaenzju@redhat.com> <78d798aa-388c-70bc-4227-985ba76c1d7e@kernel.org> From: Daniel Bristot de Oliveira In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4132.hostgator.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - kernel.org X-BWhitelist: no X-Source-IP: 82.63.1.3 X-Source-L: No X-Exim-ID: 1nQ95G-004JWf-54 X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: host-82-63-1-3.business.telecomitalia.it ([10.0.0.45]) [82.63.1.3]:40134 X-Source-Auth: kernel@bristot.me X-Email-Count: 10 X-Source-Cap: YnJpc3RvdG1lO2JyaXN0b3RtZTtnYXRvcjQxMzIuaG9zdGdhdG9yLmNvbQ== X-Local-Domain: no Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/4/22 15:36, Nicolas Saenz Julienne wrote: >> Hey Nicolas, >> >> While testing this patch with rtla osnoise on the 5.17.0-rc6-rt10+, when I hit >> ^c on osnoise top, the system freezes :-/. >> >> Could you try that on your system? > Yes of course, I'll get a build going. > > Were you using nohz_full? Yep! mce=off tsc=nowatchdog nohz=on intel_pstate=disable nosoftlockup isolcpus=11-23 nohz_full=11-23 rcu_nocbs=11-23 (I know what people thing about isolcpus, I am just lazy). -- Daniel