From: Michael Tokarev <mjt-XAri/EZa3C4vJsYlp49lxw@public.gmane.org>
To: "Serge E. Hallyn" <serge-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Subject: Re: 2.6.35: unshare(NEWNS) does not work inside a container anymore?
Date: Wed, 01 Sep 2010 23:53:58 +0400 [thread overview]
Message-ID: <4C7EAF56.7070909@msgid.tls.msk.ru> (raw)
In-Reply-To: <20100901194136.GA13918-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
01.09.2010 23:41, Serge E. Hallyn wrote:
[]
>>>> unshare(CLONE_NEWNS) = -1 EINVAL (Invalid argument)
[]
>>> ns_exec -m /bin/bash; play with mounts; exit)
>> This one is not using unshare(2), it is using clone(2) syscall.
>
> That's only the case if you do 'ns_exec -cm'.
Oh. I missed that.
[]
>> The source of this clone program is available at
>> http://www.corpit.ru/mjt/clone.c - I use it for
>> a long time, it works on this same machine
>> outside of containers, and it worked in 2.6.32.
>
> Hm, is working for me. You're on a plain upstream 2.6.35, as in commitid
> 9fe6206f400646a2322096b56c59891d530e8d51 ?
No, it's 2.6.35.4 - last stable. Plain 2.6.35 works (or fails)
the same for me as 2.6.35 - this one:
http://kernel.org/pub/linux/kernel/v2.6/linux-2.6.35.tar.bz2
But I see at least one possible difference: I run 64bit kernel
and a 32bit userspace, including lxc tools and unshare code.
Lemme check with 64bit (native) userspace....
/mjt
next prev parent reply other threads:[~2010-09-01 19:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-31 11:02 2.6.35: unshare(NEWNS) does not work inside a container anymore? Michael Tokarev
[not found] ` <4C7CE137.5090009-Gdu+ltImwkhes2APU0mLOQ@public.gmane.org>
2010-09-01 16:28 ` Serge E. Hallyn
[not found] ` <20100901162833.GA13274-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
2010-09-01 17:27 ` Michael Tokarev
[not found] ` <4C7E8D1B.2060204-Gdu+ltImwkhes2APU0mLOQ@public.gmane.org>
2010-09-01 19:41 ` Serge E. Hallyn
[not found] ` <20100901194136.GA13918-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
2010-09-01 19:53 ` Michael Tokarev [this message]
2010-09-02 9:20 ` Michael Tokarev
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