From: Oleg Nesterov <oleg@redhat.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Neil Horman <nhorman@tuxdriver.com>,
Pavel Emelyanov <xemul@parallels.com>,
Daniel Berrange <berrange@redhat.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Serge Hallyn <serge.hallyn@canonical.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: + core_pattern-set-core-helpers-root-and-namespace-to-crashing-process .patch added to -mm tree
Date: Wed, 19 Dec 2012 17:34:28 +0100 [thread overview]
Message-ID: <20121219163428.GB17514@redhat.com> (raw)
In-Reply-To: <874njj3x9d.fsf@xmission.com>
On 12/18, Eric W. Biederman wrote:
>
> Neil Horman <nhorman@tuxdriver.com> writes:
>
> > On Tue, Dec 18, 2012 at 09:06:04PM +0100, Oleg Nesterov wrote:
> >>
> >> Yes, and we probably want to change pid_ns as well. But afaics currently
> >> this is not possible, even setns can't do this.
>
> The code for setns to change the pid namespace just merged.
Yes... I see pidns_install() after git pull... And it seems that
unshare(NEWPID) should work too...
So in general task_active_pid_ns() is no longer equal to nsproxy->pid_ns.
Oh, I can't understand how this can be right ;)
> Oleg I copied you on that code when I put it up for review. Did I use
> the wrong email address?
Probably, I didn't see any email. I'll try to read the new code later.
I simply can't understand what will happen if, say, the task does
clone(CLONE_THREAD) after unshare(NEWPID)...
Oleg.
next prev parent reply other threads:[~2012-12-19 16:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-17 12:34 + core_pattern-set-core-helpers-root-and-namespace-to-crashing-process .patch added to -mm tree Oleg Nesterov
2012-12-17 15:05 ` Neil Horman
2012-12-17 16:04 ` Oleg Nesterov
2012-12-17 18:39 ` Neil Horman
2012-12-18 20:06 ` Oleg Nesterov
2012-12-18 20:19 ` Neil Horman
2012-12-18 20:45 ` Eric W. Biederman
2012-12-18 21:53 ` Neil Horman
2012-12-19 4:43 ` Eric W. Biederman
2012-12-19 16:34 ` Oleg Nesterov [this message]
2012-12-19 16:22 ` Oleg Nesterov
2012-12-19 20:42 ` Neil Horman
2012-12-20 13:02 ` Oleg Nesterov
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