linux-kernel - Re: [patch] PID namespace design bug, workaround

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Message-ID: <4729EB88.6080408@openvz.org>
Date:	Thu, 01 Nov 2007 18:06:48 +0300
From:	Pavel Emelyanov <xemul@...nvz.org>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Ulrich Drepper <drepper@...hat.com>
Subject: Re: [patch] PID namespace design bug, workaround

Peter Zijlstra wrote:
> On Thu, 2007-11-01 at 17:51 +0300, Pavel Emelyanov wrote:
> 
>>  So can we, please, 
>> keep things as they are for now - the appropriate fix will be ready 
>> soon.
> 
> Just for the curious, could you outline on how you intend to fix this?

I have already answered to Ulrich about this. Just to
make this sub-thread consistent:

The "fix" I mention is just returning -EINVAL in case user orders 
CLONE_NEWPIDS and compiling out all the namespace cloning code. This 
is just a more elegant way to get rid of pid namespaces rather than 
Ingo proposed.

Here's the root of the set:
http://lkml.org/lkml/2007/10/31/118

Thanks,
Pavel
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