From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Kay Sievers <kay.sievers@vrfy.org>
Cc: Oleg Nesterov <oleg@redhat.com>,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
lennart@poettering.net, linux-man@vger.kernel.org,
roland@hack.frob.com, torvalds@linux-foundation.org
Subject: Re: + prctl-add-pr_setget_child_reaper-to-allow-simple-process-supervision .patch added to -mm tree
Date: Wed, 17 Aug 2011 16:53:50 +0100 [thread overview]
Message-ID: <20110817165350.4bd3a2a9@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <CAPXgP101N_GESzpqu=P_H8cLoekMzb2_W2eWyAqATSjm4Gj9CA@mail.gmail.com>
O> This is not meant as a security feature, if that's what your asking.
> It will not prevent services from doing nasty things and escape the
> process that started them. But it's still a feature that today only
> PID 1 and which we need for more processes.
I'm more worried about it beign a security flaw...
> > IOW, imho this doesn't look very useful "in general" to me.
>
> It is very useful if you have an init-like daemon.
Which is a special case
>
> > May be we need something else instead... And iiuc you don't really
> > need to change the reparenting, you only want the notification if
> > the process exits.
>
> No, we want to be the parent of the process, and we want to be the one
> who reaps all the child process, not only receive some out-of-band
> notifications. The sub-init is the babysitter of all the things it has
> started, and that should be reflected in the parent child relation.
Why ?
next prev parent reply other threads:[~2011-08-17 17:24 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <201108162011.p7GKBcY0023134@imap1.linux-foundation.org>
2011-08-17 11:55 ` Oleg Nesterov
2011-08-17 13:05 ` Oleg Nesterov
2011-08-17 13:21 ` Kay Sievers
2011-08-17 13:37 ` Alan Cox
2011-08-23 0:30 ` Colin Walters
2011-08-17 14:16 ` Oleg Nesterov
2011-08-17 16:03 ` Denys Vlasenko
2011-08-17 13:13 ` Kay Sievers
2011-08-17 13:45 ` Oleg Nesterov
2011-08-17 15:45 ` Kay Sievers
2011-08-17 15:53 ` Alan Cox [this message]
2011-08-17 16:20 ` Oleg Nesterov
2011-08-17 16:47 ` Kay Sievers
2011-08-17 18:57 ` Oleg Nesterov
2011-08-17 20:56 ` Kay Sievers
2011-08-18 12:43 ` Lennart Poettering
2011-08-18 14:25 ` Oleg Nesterov
2011-08-18 18:11 ` Kay Sievers
2011-08-18 18:48 ` Oleg Nesterov
2011-08-19 1:31 ` Kay Sievers
2011-08-19 12:25 ` Oleg Nesterov
2011-08-19 12:44 ` Kay Sievers
2011-08-19 13:13 ` Oleg Nesterov
2011-08-19 14:20 ` Kay Sievers
2011-08-19 14:58 ` Oleg Nesterov
2011-08-20 15:33 ` Oleg Nesterov
2011-08-21 18:33 ` Kay Sievers
2011-08-22 11:14 ` Oleg Nesterov
2011-08-22 23:48 ` Kay Sievers
2011-08-18 21:23 ` Linus Torvalds
2011-08-18 21:55 ` Kay Sievers
2011-08-18 22:22 ` Linus Torvalds
2011-08-19 0:48 ` Kay Sievers
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