linux-kernel - Re: Top 10 kernel oopses for the week ending January 5th, 2008

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Date:	Tue, 08 Jan 2008 18:08:04 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Kevin Winchester <kjwinchester@...il.com>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	Al Viro <viro@...IV.linux.org.uk>,
	Arjan van de Ven <arjan@...ux.intel.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	NetDev <netdev@...r.kernel.org>
Subject: Re: Top 10 kernel oopses for the week ending January 5th, 2008

Linus Torvalds <torvalds@...ux-foundation.org> writes:
>
> I usually just compile a small program like

Just use scripts/decodecode and cat the Code line into that.

> particularly good way to do it, and the old "ksymoops" program used to do 
> a pretty good job of this, but I'm used to that particular idiotic way 
> myself, since it's how I've basically always done it)
>
> After that, you still need to try to match up the assembly code with the 
> source code and figure out what variables the register contents actually 
> are all about. You can often try to do a
>
> 	make the/affected/file.s


IMHO better is  

make the/file/xyz.lst        

which gives you a listing with binary data in there which can be
grepped for.

But you should install a very recent binutils because older objdump -S
couldn't deal with unit-at-a-time compilers.

-Andi
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