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Subject: Re: [PATCH -mm 5/7] add user namespace
From: Dave Hansen <haveblue@us.ibm.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
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On Thu, 2006-07-13 at 21:45 -0600, Eric W. Biederman wrote:
> I think for filesystems like /proc and /sys that there will normally
> be problems.  However many of those problems can be rationalized away
> as a reasonable optimization, or are not immediately apparent.

Could you talk about some of these problems?

> Passing a file descriptor between process in a unix domain socket is
> a case where I can easily construct scenarios where there are
> indisputable problems.  It is one of my standard thought experiments
> to see if a namespace is sound.

Care to share some of those indisputable problems?

-- Dave