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[209.132.180.67]) by mx.google.com with ESMTP id x15-v6si2173342pln.479.2018.04.18.17.41.49; Wed, 18 Apr 2018 17:42:03 -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 S1752907AbeDSAkk (ORCPT + 99 others); Wed, 18 Apr 2018 20:40:40 -0400 Received: from lgeamrelo13.lge.com ([156.147.23.53]:41226 "EHLO lgeamrelo13.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752532AbeDSAkj (ORCPT ); Wed, 18 Apr 2018 20:40:39 -0400 Received: from unknown (HELO lgeamrelo02.lge.com) (156.147.1.126) by 156.147.23.53 with ESMTP; 19 Apr 2018 09:40:36 +0900 X-Original-SENDERIP: 156.147.1.126 X-Original-MAILFROM: namhyung@kernel.org Received: from unknown (HELO sejong) (10.177.227.17) by 156.147.1.126 with ESMTP; 19 Apr 2018 09:40:35 +0900 X-Original-SENDERIP: 10.177.227.17 X-Original-MAILFROM: namhyung@kernel.org Date: Thu, 19 Apr 2018 09:40:33 +0900 From: Namhyung Kim To: Steven Rostedt Cc: Masami Hiramatsu , Tom Zanussi , tglx@linutronix.de, 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, kernel-team@lge.com Subject: Re: [PATCH 2/6] tracing: Add trace event error log Message-ID: <20180419004033.GA13370@sejong> 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> <20180418183434.34eb10004275c9e89a9e709c@kernel.org> <20180418094924.3ad22dbf@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20180418094924.3ad22dbf@gandalf.local.home> 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 Hi guys, :) On Wed, Apr 18, 2018 at 09:49:24AM -0400, Steven Rostedt wrote: > On Wed, 18 Apr 2018 18:34:34 +0900 > Masami Hiramatsu wrote: > > > 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. > > I totally agree. I just want to make sure that whatever we come up with > will be well thought out. Perhaps we can wait till November to talk > about it. I'm not sure I can go to LPC this year, but definitely interested in improving error logging for tracing. Thanks, Namhyung