linux-kernel - Re: [PATCH] ptrace: it is fun to strace /sbin/init

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Message-ID: <20080325142259.GO2170@one.firstfloor.org>
Date:	Tue, 25 Mar 2008 15:22:59 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Krzysztof Halasa <khc@...waw.pl>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Oleg Nesterov <oleg@...sign.ru>, ebiederm@...ssion.com,
	xemul@...nvz.org, pavel@....cz, sds@...ho.nsa.gov,
	roland@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ptrace: it is fun to strace /sbin/init

> > I like the general idea -- i used to patch kernels to allow this too,
> > but it is dangerous.
> 
> Though root-only. Root doesn't want to be limited and knows better
> anyway. 

The problem is that you can deadlock if you are not very careful.

-Andi
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