From: Andi Kleen <andi@firstfloor.org>
To: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Andi Kleen <andi@firstfloor.org>,
Andrew Morton <akpm@linux-foundation.org>,
Oleg Nesterov <oleg@tv-sign.ru>,
ebiederm@xmission.com, xemul@openvz.org, pavel@ucw.cz,
sds@tycho.nsa.gov, roland@redhat.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ptrace: it is fun to strace /sbin/init
Date: Tue, 25 Mar 2008 15:35:44 +0100 [thread overview]
Message-ID: <20080325143544.GP2170@one.firstfloor.org> (raw)
In-Reply-To: <m37ifqdgfu.fsf@maximus.localdomain>
On Tue, Mar 25, 2008 at 03:30:29PM +0100, Krzysztof Halasa wrote:
> Andi Kleen <andi@firstfloor.org> writes:
>
> > The problem is that you can deadlock if you are not very careful.
>
> I can damage the system in trillion ways, one more is not a problem
> :-)
We don't actually have that many ways for hard deadlocks even
as root (short of doing really nasty things on /dev/kmem)
> Hopefully someone will write the details down to enable root to be
> very careful.
Sure, but if the deadlocks can be avoided on the kernel level (just
making sure the children are already reaped) then it would be even
better.
-Andi
next prev parent reply other threads:[~2008-03-25 14:32 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-23 13:51 [PATCH] ptrace: it is fun to strace /sbin/init Oleg Nesterov
2008-03-24 16:01 ` Pavel Machek
2008-03-24 16:40 ` Oleg Nesterov
2008-03-24 22:39 ` Pavel Machek
2008-03-24 23:04 ` Oleg Nesterov
2008-03-24 23:09 ` Pavel Machek
2008-03-24 23:18 ` Oleg Nesterov
2008-03-24 23:26 ` Andrew Morton
2008-03-24 23:38 ` Oleg Nesterov
2008-03-25 12:03 ` Stephen Smalley
2008-03-25 13:40 ` Serge E. Hallyn
2008-03-25 14:37 ` Stephen Smalley
2008-03-25 18:06 ` Serge E. Hallyn
[not found] ` <20080325180611.GB19176-6s5zFf/epYL1ENwx4SLHqw@public.gmane.org>
2008-03-25 19:07 ` Herbert Poetzl
2008-03-25 19:07 ` Herbert Poetzl
2008-03-26 15:47 ` Pavel Emelyanov
2008-03-26 15:47 ` Pavel Emelyanov
2008-03-25 21:55 ` Pavel Machek
2008-03-26 15:31 ` Andrew Morgan
2008-03-24 22:29 ` Andrew Morton
2008-03-24 22:56 ` Oleg Nesterov
2008-03-24 23:08 ` Andrew Morton
2008-03-24 23:29 ` Oleg Nesterov
2008-03-25 10:00 ` Andi Kleen
2008-03-25 14:16 ` Krzysztof Halasa
2008-03-25 14:22 ` Andi Kleen
2008-03-25 14:30 ` Krzysztof Halasa
2008-03-25 14:35 ` Andi Kleen [this message]
2008-03-25 14:58 ` Krzysztof Halasa
2008-03-25 14:47 ` Pavel Machek
2008-03-25 14:56 ` Andi Kleen
2008-03-25 17:42 ` Oleg Nesterov
2008-03-25 22:00 ` Roland McGrath
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