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From: "Wang Yi" <leonidwang@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Segmentation fault details?
Date: Mon, 11 Aug 2008 14:55:13 +0800	[thread overview]
Message-ID: <ac94cb270808102355o1413f46ehcddb82ae69458c0d@mail.gmail.com> (raw)
In-Reply-To: <ac94cb270808102337i5febf70fkb6d1f27f71cafb34@mail.gmail.com>

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

       reply	other threads:[~2008-08-11  6:55 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <ac94cb270808102334m1cc2c3a1n45202072d309927c@mail.gmail.com>
     [not found] ` <ac94cb270808102337i5febf70fkb6d1f27f71cafb34@mail.gmail.com>
2008-08-11  6:55   ` Wang Yi [this message]
2008-08-11  8:35     ` Alan Jenkins
2008-08-11  8:36     ` Alan Jenkins
     [not found] <aZzy0-8hH-13@gated-at.bofh.it>
     [not found] ` <aZzy0-8hH-15@gated-at.bofh.it>
     [not found]   ` <aZzxZ-8hH-11@gated-at.bofh.it>
2008-08-23 20:23     ` Bodo Eggert
2008-08-24  3:26       ` Calvin Walton

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