From: "Serge E. Hallyn" <serge@hallyn.com>
To: ntl@pobox.com
Cc: linux-kernel@vger.kernel.org,
containers@lists.linux-foundation.org,
Oren Laadan <orenl@cs.columbia.edu>,
Alexey Dobriyan <adobriyan@gmail.com>
Subject: Re: [PATCH 05/10] Core checkpoint/restart support code
Date: Sun, 3 Apr 2011 14:03:24 -0500 [thread overview]
Message-ID: <20110403190324.GD15044@hallyn.com> (raw)
In-Reply-To: <1298936432-29607-6-git-send-email-ntl@pobox.com>
Quoting ntl@pobox.com (ntl@pobox.com):
> Only a pid namespace init task - the child process produced by a call
> to clone(2) with CLONE_NEWPID - is allowed to call these. The state
So you make this useful for your cases by only using this with
application containers - created using lxc-execute, or, more precisely,
using lxc-init as the container's init. So a container running a stock
distro can't be checkpointed.
Is this just to keep the patch simple for now, or is there some reason
to keep this limitation in place?
-serge
next prev parent reply other threads:[~2011-04-03 19:03 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-28 23:40 [RFC 00/10] container-based checkpoint/restart prototype ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-02-28 23:40 ` ntl
2011-02-28 23:40 ` [PATCH 03/10] Introduce has_locks_with_owner() helper ntl
2011-04-03 18:55 ` Serge E. Hallyn
[not found] ` <1298936432-29607-4-git-send-email-ntl-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
2011-04-03 18:55 ` Serge E. Hallyn
2011-02-28 23:40 ` [PATCH 04/10] Introduce vfs_fcntl() helper ntl
[not found] ` <1298936432-29607-5-git-send-email-ntl-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
2011-04-03 18:57 ` Serge E. Hallyn
2011-04-03 18:57 ` Serge E. Hallyn
2011-02-28 23:40 ` [PATCH 05/10] Core checkpoint/restart support code ntl
2011-04-03 19:03 ` Serge E. Hallyn [this message]
2011-04-04 15:00 ` Nathan Lynch
2011-04-04 15:10 ` Serge E. Hallyn
2011-04-04 15:40 ` Nathan Lynch
2011-04-04 16:27 ` Serge E. Hallyn
2011-04-04 17:41 ` Andrew Morton
[not found] ` <20110404104119.78189678.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2011-04-04 18:51 ` Serge E. Hallyn
2011-04-04 18:51 ` Serge E. Hallyn
2011-04-04 19:42 ` Andrew Morton
2011-04-04 20:29 ` Serge E. Hallyn
[not found] ` <20110404124222.fd5eb85b.akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
2011-04-04 20:29 ` Serge E. Hallyn
2011-04-04 21:55 ` Matt Helsley
2011-04-04 22:11 ` Serge E. Hallyn
2011-04-04 22:53 ` Serge E. Hallyn
2011-04-04 21:55 ` Matt Helsley
2011-04-04 23:15 ` Andrew Morton
2011-04-04 23:16 ` Valdis.Kletnieks
2011-04-04 23:43 ` Matt Helsley
2011-04-04 23:43 ` Matt Helsley
[not found] ` <20110404215511.GA27628-52DBMbEzqgQ/wnmkkaCWp/UQ3DHhIser@public.gmane.org>
2011-04-04 23:15 ` Andrew Morton
2011-04-04 23:16 ` Valdis.Kletnieks-PjAqaU27lzQ
2011-04-04 22:11 ` Serge E. Hallyn
2011-04-04 22:53 ` Serge E. Hallyn
[not found] ` <20110404185119.GB4782-BtbdaCaBcfOTUehee3IRJA@public.gmane.org>
2011-04-04 19:42 ` Andrew Morton
[not found] ` <20110404162753.GA3456-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
2011-04-04 17:32 ` Oren Laadan
2011-04-04 17:32 ` Oren Laadan
[not found] ` <4D9A00B1.2080002-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2011-04-04 21:43 ` Nathan Lynch
2011-04-04 21:43 ` Nathan Lynch
2011-04-04 22:03 ` Serge E. Hallyn
2011-04-04 22:03 ` Serge E. Hallyn
[not found] ` <20110404220309.GA10229-BtbdaCaBcfOTUehee3IRJA@public.gmane.org>
2011-04-04 23:42 ` Dan Smith
2011-04-04 23:42 ` Dan Smith
[not found] ` <87vcyt4m93.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2011-04-05 2:17 ` Serge E. Hallyn
2011-04-05 2:17 ` Serge E. Hallyn
2011-04-05 19:18 ` Nathan Lynch
[not found] ` <20110405021716.GA16672-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
2011-04-05 19:18 ` Nathan Lynch
2011-04-04 22:29 ` Matt Helsley
2011-04-04 22:29 ` Matt Helsley
2011-04-04 17:41 ` Andrew Morton
2011-04-04 21:20 ` Nathan Lynch
2011-04-04 21:20 ` Nathan Lynch
2011-04-04 21:53 ` Serge E. Hallyn
2011-04-04 21:53 ` Serge E. Hallyn
2011-04-04 16:27 ` Serge E. Hallyn
[not found] ` <20110404151017.GA4857-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
2011-04-04 15:40 ` Nathan Lynch
2011-04-04 15:10 ` Serge E. Hallyn
[not found] ` <20110403190324.GD15044-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
2011-04-04 15:00 ` Nathan Lynch
[not found] ` <1298936432-29607-6-git-send-email-ntl-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
2011-04-03 19:03 ` Serge E. Hallyn
2011-02-28 23:40 ` [PATCH 06/10] Checkpoint/restart mm support ntl
2011-02-28 23:40 ` [PATCH 07/10] Checkpoint/restart vfs support ntl
2011-02-28 23:40 ` [PATCH 08/10] Add generic '->checkpoint' f_op to ext filesystems ntl
2011-02-28 23:40 ` [PATCH 09/10] Add generic '->checkpoint()' f_op to simple char devices ntl
2011-02-28 23:40 ` [PATCH 10/10] x86_32 support for checkpoint/restart ntl
[not found] ` <1298936432-29607-1-git-send-email-ntl-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
2011-02-28 23:40 ` [PATCH 01/10] Make exec_mmap extern ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-02-28 23:40 ` ntl
2011-04-03 16:56 ` Serge E. Hallyn
[not found] ` <1298936432-29607-2-git-send-email-ntl-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
2011-04-03 16:56 ` Serge E. Hallyn
2011-02-28 23:40 ` [PATCH 02/10] Introduce mm_has_pending_aio() helper ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-02-28 23:40 ` ntl
[not found] ` <1298936432-29607-3-git-send-email-ntl-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
2011-03-01 15:40 ` Jeff Moyer
2011-03-01 15:40 ` Jeff Moyer
[not found] ` <x494o7mrgrh.fsf-RRHT56Q3PSP4kTEheFKJxxDDeQx5vsVwAInAS/Ez/D0@public.gmane.org>
2011-03-01 16:04 ` Nathan Lynch
2011-03-01 16:04 ` Nathan Lynch
2011-02-28 23:40 ` [PATCH 03/10] Introduce has_locks_with_owner() helper ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-02-28 23:40 ` [PATCH 04/10] Introduce vfs_fcntl() helper ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-02-28 23:40 ` [PATCH 05/10] Core checkpoint/restart support code ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-02-28 23:40 ` [PATCH 06/10] Checkpoint/restart mm support ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-02-28 23:40 ` [PATCH 07/10] Checkpoint/restart vfs support ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-02-28 23:40 ` [PATCH 08/10] Add generic '->checkpoint' f_op to ext filesystems ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-02-28 23:40 ` [PATCH 09/10] Add generic '->checkpoint()' f_op to simple char devices ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-02-28 23:40 ` [PATCH 10/10] x86_32 support for checkpoint/restart ntl-e+AXbWqSrlAAvxtiuMwx3w
2011-03-01 1:08 ` [RFC 00/10] container-based checkpoint/restart prototype Nathan Lynch
2011-03-01 1:08 ` Nathan Lynch
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