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[209.132.180.67]) by mx.google.com with ESMTP id c87si849658pfk.53.2018.04.18.02.36.14; Wed, 18 Apr 2018 02:36:28 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752617AbeDRJek (ORCPT + 99 others); Wed, 18 Apr 2018 05:34:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:37798 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751250AbeDRJei (ORCPT ); Wed, 18 Apr 2018 05:34:38 -0400 Received: from devbox (NE2965lan1.rev.em-net.ne.jp [210.141.244.193]) (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 8F3A521727; Wed, 18 Apr 2018 09:34:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8F3A521727 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=mhiramat@kernel.org Date: Wed, 18 Apr 2018 18:34:34 +0900 From: Masami Hiramatsu To: Steven Rostedt Cc: Tom Zanussi , tglx@linutronix.de, mhiramat@kernel.org, namhyung@kernel.org, vedang.patel@intel.com, bigeasy@linutronix.de, joel.opensrc@gmail.com, joelaf@google.com, mathieu.desnoyers@efficios.com, baohong.liu@intel.com, rajvi.jingar@intel.com, julia@ni.com, fengguang.wu@intel.com, linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org Subject: Re: [PATCH 2/6] tracing: Add trace event error log Message-Id: <20180418183434.34eb10004275c9e89a9e709c@kernel.org> In-Reply-To: <20180413104432.148f13dc@gandalf.local.home> References: <194bd34e689dd6df9e48855111fd6c5c66e37fc9.1523545519.git.tom.zanussi@linux.intel.com> <20180412182001.75bfb4e2@gandalf.local.home> <1523577133.11817.31.camel@tzanussi-mobl.amr.corp.intel.com> <20180413094515.19fb3691@gandalf.local.home> <1523629474.25328.14.camel@tzanussi-mobl.amr.corp.intel.com> <20180413104432.148f13dc@gandalf.local.home> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 13 Apr 2018 10:44:32 -0400 Steven Rostedt wrote: > On Fri, 13 Apr 2018 09:24:34 -0500 > Tom Zanussi wrote: > > > Yeah, I agree - I'd rather get it right than get it in now. I thought > > this made sense, and was based on input from Masami, which I may have > > misinterpreted, but I'll wait for some more ideas about the best way to > > do this. > > Too bad we are not closer to November, as this would actually be a good > Plumbers topic. Maybe it's not that important and we should wait until > then. I'd like to get some brain storming ideas out before we decide on > anything, and this is something I believe is better done face to face > than over email. OK, sounds good for me too :) My point was that printk buffer is not good place for the parser error of ftrace, nor each sub-features (like hist, trigger, probe_events etc.) has different place to show it. I just want to unify the user experience over the ftrace UI. Thanks, -- Masami Hiramatsu