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From: Dan Smith <danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
To: Daniel Lezcano <daniel.lezcano-GANU6spQydw@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: Thu, 12 Mar 2009 15:58:19 -0700	[thread overview]
Message-ID: <877i2upcvo.fsf@caffeine.danplanet.com> (raw)
In-Reply-To: <49B99144.9000106-GANU6spQydw@public.gmane.org> (Daniel Lezcano's message of "Thu, 12 Mar 2009 23:48:36 +0100")

DL> Assuming you have a process and this one unshared the network 100
DL> times and each time opens a socket, how do you checkpoint these
DL> namespaces ?

>> What's the argument for depending on userspace to set this up?
>> 
DL> Maybe, CR of the namespaces is more complicate topic than it looks
DL> like and the CR itself is big enough to not complicate
DL> things. IMHO, I would recommend as the first step to forbid the
DL> unshare inside a container and let the container implementation to
DL> save the configuration with the statefile in order to recreate it
DL> at the restart

I think what you're suggesting here is some sort of check to make sure
we don't allow checkpointing a process with nested namespaces... is
that correct?  If so, I agree.

-- 
Dan Smith
IBM Linux Technology Center
email: danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org

  parent reply	other threads:[~2009-03-12 22:58 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
     [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 [this message]
     [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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