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

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Message-ID: <20101110174122.GA4001@elte.hu>
Date:	Wed, 10 Nov 2010 18:41:22 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Borislav Petkov <bp@...en8.de>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"Luck, Tony" <tony.luck@...el.com>, linux-kernel@...r.kernel.org,
	ying.huang@...el.com, tglx@...utronix.de,
	akpm@...ux-foundation.org, mchehab@...hat.com,
	Frédéric Weisbecker <fweisbec@...il.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Arjan van de Ven <arjan@...radead.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Subject: Re: [RFC/Requirements/Design] h/w error reporting


* Borislav Petkov <bp@...en8.de> wrote:

> On Wed, Nov 10, 2010 at 11:52:40AM -0500, Steven Rostedt wrote:
> > Also, lets not focus now on implementation. Let's try to concentrate on
> > what we want the tools to be able to do.
> > 
> > For example, I would like:
> > 
> > Very small entries, and pick and chose what I want in my entries.
> > 
> > A way to read it fast to a file or over the network (splice).
> > 
> > The read backwards seems like a cool idea, but I would not want to throw
> > away the read forwards part either.
> 
> It would also be cool to be able to allocate those buffers as early as possible, 
> even if before MCA is enabled, so that I won't have to copy MCE data which got 
> logged before the tracing subsystem got enabled to the buffers proper.

We could even have some (small) statically enabled build-time buffer that could be 
enabled straight away before any allocators are enabled.

Thanks,

	Ingo
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