From: Cedric Le Goater <legoater-GANU6spQydw@public.gmane.org>
To: Dan Smith <danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Cc: containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org,
Nathan Lynch <ntl-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH] [RFC] c/r: Add UTS support
Date: Wed, 18 Mar 2009 16:46:39 +0100 [thread overview]
Message-ID: <49C1175F.9060600@free.fr> (raw)
In-Reply-To: <878wn353mf.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
Dan Smith wrote:
> SH> (Note that in Dan's next version, he did move unshare into
> SH> userspace)
>
> The idealist in me still wants it to be in the kernel. However, after
> seeing it done I agree that it's the right thing to do, at least in
> this case.
I would say in all cases.
as you can't unshare(CLONE_NEWPID), you might consider doing a
clone(CLONE_NEW*|CLONE_WHATEVER)
to restart 1 and then restart the container process tree under it, block
them, restore the container namespaces and other shared resources in the
right order and then release the processes to let them restart themselves.
that's how we've implemented restart. You might be doing that already,
sorry I haven't had time to look at your code.
1 being an invariant between checkpoint and restart.
C.
next prev parent reply other threads:[~2009-03-18 15:46 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-12 17:56 [PATCH] [RFC] c/r: Add UTS support Dan Smith
[not found] ` <1236880612-15316-1-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-03-12 21:29 ` Nathan Lynch
2009-03-12 21:56 ` Dan Smith
[not found] ` <87fxhipfrh.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-12 22:48 ` Serge E. Hallyn
[not found] ` <20090312224820.GA12723-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
2009-03-12 22:56 ` Dan Smith
[not found] ` <87bps6pcyf.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-13 0:12 ` Serge E. Hallyn
2009-03-18 8:27 ` Oren Laadan
[not found] ` <49C0B069.6060300-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-03-18 9:01 ` Cedric Le Goater
2009-03-18 13:49 ` Serge E. Hallyn
[not found] ` <20090318134932.GC22636-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-03-18 14:04 ` Dan Smith
[not found] ` <878wn353mf.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-18 15:46 ` Cedric Le Goater [this message]
[not found] ` <49C1175F.9060600-GANU6spQydw@public.gmane.org>
2009-03-18 15:55 ` Dan Smith
[not found] ` <874oxq6d1x.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-18 16:02 ` Cedric Le Goater
2009-03-18 19:50 ` Mike Waychison
[not found] ` <49C1506C.1080500-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2009-03-19 0:10 ` Eric W. Biederman
[not found] ` <m1bprye5io.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2009-03-19 0:46 ` Mike Waychison
[not found] ` <49C195CF.1080506-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2009-03-19 1:06 ` Eric W. Biederman
[not found] ` <m1ab7icodl.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2009-03-19 1:51 ` Mike Waychison
[not found] ` <49C1A52D.4000503-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2009-03-19 3:28 ` Eric W. Biederman
[not found] ` <m1iqm6xkc7.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2009-03-20 17:26 ` Serge E. Hallyn
[not found] ` <20090320172616.GA7203-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-03-20 19:51 ` Mike Waychison
[not found] ` <49C3F3C0.30100-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2009-03-20 20:40 ` Serge E. Hallyn
2009-03-20 20:53 ` Oren Laadan
2009-03-20 23:26 ` Eric W. Biederman
[not found] ` <m1d4cb3he5.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2009-03-21 2:38 ` Serge E. Hallyn
[not found] ` <20090321023834.GA21064-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
2009-03-21 3:39 ` Eric W. Biederman
[not found] ` <m1prgbzgqq.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2009-03-21 14:51 ` Serge E. Hallyn
2009-03-12 22:48 ` Daniel Lezcano
[not found] ` <49B99144.9000106-GANU6spQydw@public.gmane.org>
2009-03-12 22:58 ` Dan Smith
[not found] ` <877i2upcvo.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-12 23:11 ` Daniel Lezcano
[not found] ` <49B996BC.1090908-GANU6spQydw@public.gmane.org>
2009-03-12 23:13 ` Dan Smith
[not found] ` <873adipc5l.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-12 23:24 ` Daniel Lezcano
[not found] ` <49B999A6.2000005-GANU6spQydw@public.gmane.org>
2009-03-13 15:30 ` Serge E. Hallyn
[not found] ` <20090313153004.GA8317-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-03-13 15:51 ` Daniel Lezcano
[not found] ` <49BA811C.4070302-GANU6spQydw@public.gmane.org>
2009-03-13 17:15 ` Serge E. Hallyn
[not found] ` <20090313171556.GB10685-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-03-13 17:53 ` Daniel Lezcano
[not found] ` <49BA9D9C.2030208-GANU6spQydw@public.gmane.org>
2009-03-25 12:01 ` Eric W. Biederman
2009-03-13 15:59 ` Cedric Le Goater
[not found] ` <49BA82CE.4090206-GANU6spQydw@public.gmane.org>
2009-03-13 16:04 ` Daniel Lezcano
2009-03-18 8:32 ` Oren Laadan
2009-03-18 8:35 ` Oren Laadan
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