linux-kernel - Segmentation fault details?

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Date:	Mon, 11 Aug 2008 14:55:13 +0800
From:	"Wang Yi" <leonidwang@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Segmentation fault details?

Hi, all!

 I'd like to know some details about segmentation fault.
 What I mean is when a program accesses invalid memory area, it will
get a SIGSEGV signal from kernel, and a message "Segmentation fault".

 I also find that dmesg can show we something like this:
 ProgramName[Pid]: segfault at xxxx eip xxxx esp xxxx error x
 It is useful and provides the first-step information for further
debug/analysis.

 My question is how dmesg gets the information, and if there are any
"decent" way to get this and maybe more information(An "indecent" way
I came to is grep dmesg)
so that I can perform some basic auto analysis.

 Thank you.

Leo
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