linux-kernel - Re: [RFC/Requirements/Design] h/w error reporting

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Message-ID: <20101110191127.GA6190@nowhere>
Date:	Wed, 10 Nov 2010 20:11:29 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"Luck, Tony" <tony.luck@...el.com>, linux-kernel@...r.kernel.org,
	ying.huang@...el.com, bp@...en8.de, tglx@...utronix.de,
	akpm@...ux-foundation.org, mchehab@...hat.com,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [RFC/Requirements/Design] h/w error reporting

On Wed, Nov 10, 2010 at 02:00:45PM -0500, Steven Rostedt wrote:
> On Wed, 2010-11-10 at 19:41 +0100, Ingo Molnar wrote:
> 
> > We'll need to embark on this incremental path instead of a rewrite-the-world thing. 
> > As a maintainer my task is to say 'no' to rewrite-the-world approaches - and we can 
> > and will do better here.
> 
> Thus you are saying that we stick to the status quo, and also ignore the
> fact that perf was a rewrite-the-world from ftrace to begin with.


Perhaps you and Mathieu can summarize your requirements here and then explain
why extending the current ABI wouldn't work. It's quite normal that people
try to find a solution fully backward compatible in the first place. If
it's not possible, fine, but then justify it.

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