linux-kernel - Re: [PATCH] stack2core: show stack message and convert it to core file when kernel die

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Date:	Wed, 6 Jan 2010 15:07:18 +0800
From:	Hui Zhu <teawater@...il.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	Russell King <linux@....linux.org.uk>,
	saeed bishara <saeed.bishara@...il.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Nicolas Pitre <nico@...xnic.net>,
	Ralf Baechle <ralf@...ux-mips.org>,
	David Daney <ddaney@...iumnetworks.com>,
	Tomaso Paoletti <tpaoletti@...iumnetworks.com>,
	Chris Dearman <chris@...s.com>,
	Paul Gortmaker <Paul.Gortmaker@...driver.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Frederic Weisbecker <fweisbec@...il.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Brian Gerst <brgerst@...il.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-mips@...ux-mips.org, Coly Li <coly.li@...e.de>
Subject: Re: [PATCH] stack2core: show stack message and convert it to core 
	file when kernel die

Hi,

On Tue, Jan 5, 2010 at 17:20, Tejun Heo <tj@...nel.org> wrote:
> Hello,
>
> On 01/05/2010 06:04 PM, Hui Zhu wrote:
>> I agree with read the current stack message is better.
>>
>> About the extending, I have some question with it:
>> 1.  markup_oops.pl have itself idea, it try use dmesg| markup_oops.pl
>> show what happen to usr.  This is different with s2c.
>> I am not sure people like it have other function with it.  Too much
>> part of this file need to be change.  It need rewrite, just the oops
>> message parse part can be keep.
>
> Yeah, I think you'll need to refactor it and share only the parsing
> frontend.  Just adding a switch (-m or whatever) which puts it into
> machine-friendly translator mode should do the trick.
>
>> 2.  I use perl to work in a long time before, I know it good at parse
>> the text, but I am not sure it good at handle struct like:
>
> You don't need to handle the data structure at all.  Just make it
> parse the dmesg and output machine-friendly formatted output which can
> be processed by s2c.  ie. just make it do the reformatting.

This idea is very cool.  I will do it.  Thanks for help.  :)

Best regards,
Hui
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