linux-kernel - Re: Questions about ptrace on a dying process

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Message-ID: <m2mx81pi7x.fsf@firstfloor.org>
Date:	Wed, 29 Feb 2012 11:12:02 -0800
From:	Andi Kleen <andi@...stfloor.org>
To:	Tim Bird <tim.bird@...sony.com>
Cc:	Roland McGrath <roland@...hat.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	linux kernel <linux-kernel@...r.kernel.org>
Subject: Re: Questions about ptrace on a dying process

Tim Bird <tim.bird@...sony.com> writes:

> ptrace maintainers (and interested parties)...
>
> I'm working on a crash handler for Linux, which uses ptrace to retrieve information
> about a process during it's coredump.  Specifically, from within a core handler
> program (started within do_coredump() as a user_mode_helper), I would like to make
> ptrace calls against the dying process.

The standard approach is to define a core pipe handler and parse the
elf memory dump.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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