From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762756AbYDNSXl (ORCPT ); Mon, 14 Apr 2008 14:23:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933085AbYDNSUs (ORCPT ); Mon, 14 Apr 2008 14:20:48 -0400 Received: from pne-smtpout4-sn2.hy.skanova.net ([81.228.8.154]:36537 "EHLO pne-smtpout4-sn2.hy.skanova.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933077AbYDNSUr (ORCPT ); Mon, 14 Apr 2008 14:20:47 -0400 Date: Mon, 14 Apr 2008 21:20:21 +0300 From: Pekka Paalanen To: Steven Rostedt Cc: Ingo Molnar , linux-kernel@vger.kernel.org, Pavel Roskin Subject: Re: [PATCH] mmiotrace: add user documentation Message-ID: <20080414212021.5d2c351c@daedalus.pq.iki.fi> In-Reply-To: References: <20080413224207.4430a09c@daedalus.pq.iki.fi> <20080413224859.4e3f5ddb@daedalus.pq.iki.fi> X-Mailer: Claws Mail 3.0.2 (GTK+ 2.12.8; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 14 Apr 2008 11:49:55 -0400 (EDT) Steven Rostedt wrote: > On Sun, 13 Apr 2008, Pekka Paalanen wrote: > > + > > +[Unimplemented feature:] > > +During tracing you can place comments (markers) into the trace by > > +$ echo "X is up" > /debug/tracing/marker > > I can implement a marker feature (logdev does this). I'll see if I can get > something working this week. Cool, I assumed this would require support for variable length entries. Even if it would be very limited in length, like 16 bytes, it would be useful. > > +[This feature is not implemented yet!] > > +Check your kernel log. If there are messages about mmiotrace losing events, > > This is something of higher priority to implement. I'll work on that > first. Great! > > +this is due to buffer overrun, and the trace is incomplete. You should enlarge > > +the buffers and try again. [How?] > > I pretty much have the infrastructure in place to implement this. Now it's > just time to do it ;-) Thank you :-) -- Pekka Paalanen http://www.iki.fi/pq/