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From: Pavel Emelyanov <xemul-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
To: richard -rw- weinberger
	<richard.weinberger-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: "users-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org"
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Subject: Re: [Announce] Checkpoint-restore tool v0.1
Date: Tue, 31 Jul 2012 13:54:09 +0400	[thread overview]
Message-ID: <5017AB41.60700@parallels.com> (raw)
In-Reply-To: <CAFLxGvy396+BfYSaSnvAwJb0GO4WZCKbPXSbU7YfrOJTo6zk6A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On 07/31/2012 01:29 PM, richard -rw- weinberger wrote:
> On Tue, Jul 31, 2012 at 11:07 AM, Pavel Emelyanov <xemul-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org> wrote:
>> Sorry :( However, if you can help with patches on that issue that would be
>> highly appreciated :)
>>
> 
> Yeah, but I fear it's not that easy.
> We'd have to change crtools to work without ptrace().

Well, this is hard. Using ptrace saved us from having many special-purpose
APIs for dumping various stuff (there will be an article about it). Thus I
don't know which way is simpler -- stop using ptrace or teach ptrece to allow
several tracers to attach to one task %)

Thanks,
Pavel

WARNING: multiple messages have this Message-ID (diff)
From: Pavel Emelyanov <xemul@parallels.com>
To: richard -rw- weinberger <richard.weinberger@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"lwn@lwn.net" <lwn@lwn.net>, "criu@openvz.org" <criu@openvz.org>,
	"users@openvz.org" <users@openvz.org>,
	Containers <containers@lists.linux-foundation.org>,
	cgroups mailinglist <cgroups@vger.kernel.org>
Subject: Re: [Announce] Checkpoint-restore tool v0.1
Date: Tue, 31 Jul 2012 13:54:09 +0400	[thread overview]
Message-ID: <5017AB41.60700@parallels.com> (raw)
In-Reply-To: <CAFLxGvy396+BfYSaSnvAwJb0GO4WZCKbPXSbU7YfrOJTo6zk6A@mail.gmail.com>

On 07/31/2012 01:29 PM, richard -rw- weinberger wrote:
> On Tue, Jul 31, 2012 at 11:07 AM, Pavel Emelyanov <xemul@parallels.com> wrote:
>> Sorry :( However, if you can help with patches on that issue that would be
>> highly appreciated :)
>>
> 
> Yeah, but I fear it's not that easy.
> We'd have to change crtools to work without ptrace().

Well, this is hard. Using ptrace saved us from having many special-purpose
APIs for dumping various stuff (there will be an article about it). Thus I
don't know which way is simpler -- stop using ptrace or teach ptrece to allow
several tracers to attach to one task %)

Thanks,
Pavel


  parent reply	other threads:[~2012-07-31  9:54 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-23  8:22 [Announce] Checkpoint-restore tool v0.1 Pavel Emelyanov
     [not found] ` <500D09C9.7060903-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-07-23  8:53   ` Pavel Emelyanov
2012-07-23  8:53     ` Pavel Emelyanov
     [not found]     ` <500D1116.7070301-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-07-23 13:14       ` Serge Hallyn
2012-07-23 13:14         ` Serge Hallyn
2012-07-23 13:14       ` Serge Hallyn
2012-07-30 10:42       ` richard -rw- weinberger
2012-07-30 10:42       ` richard -rw- weinberger
2012-07-30 10:42         ` richard -rw- weinberger
     [not found]         ` <CAFLxGvwUhEPNdQvUnue2QFu_EipmBKD3nf0MfMWkqwLTf7jd5Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-31  8:53           ` Pavel Emelyanov
2012-07-31  8:53             ` Pavel Emelyanov
     [not found]             ` <50179CF0.7050200-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-07-31  8:57               ` richard -rw- weinberger
2012-07-31  8:57                 ` richard -rw- weinberger
     [not found]                 ` <CAFLxGvygCxER3gHfj-onwnm_m6xugOVkynGyJU2CDheD3A2HOQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-31  9:00                   ` Cyrill Gorcunov
2012-07-31  9:00                     ` Cyrill Gorcunov
2012-07-31  9:00                   ` Cyrill Gorcunov
2012-07-31  9:07                   ` Pavel Emelyanov
2012-07-31  9:07                     ` Pavel Emelyanov
     [not found]                     ` <5017A053.9000206-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-07-31  9:29                       ` richard -rw- weinberger
2012-07-31  9:29                         ` richard -rw- weinberger
     [not found]                         ` <CAFLxGvy396+BfYSaSnvAwJb0GO4WZCKbPXSbU7YfrOJTo6zk6A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-31  9:54                           ` Pavel Emelyanov [this message]
2012-07-31  9:54                             ` Pavel Emelyanov
     [not found]                             ` <5017AB41.60700-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-07-31 10:08                               ` richard -rw- weinberger
2012-07-31 10:08                                 ` richard -rw- weinberger
     [not found]                                 ` <CAFLxGvwu8-ii7hDbDfco3JrgKgOK+hsdTN_Q--AHbom0Ni8WYA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-31 10:16                                   ` Cyrill Gorcunov
2012-07-31 10:16                                     ` Cyrill Gorcunov
2012-07-31 10:21                                     ` richard -rw- weinberger
2012-07-31 10:21                                       ` richard -rw- weinberger
     [not found]                                       ` <CAFLxGvxgq9HJJvRgz=z48D7V_j=dTv4jSCLqEZcE=oCBAXnSug-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-31 10:30                                         ` Cyrill Gorcunov
2012-07-31 10:30                                           ` Cyrill Gorcunov
2012-07-31 10:21                                     ` richard -rw- weinberger
2012-07-31 10:16                                   ` Cyrill Gorcunov
2012-07-31  9:29                       ` richard -rw- weinberger
2012-09-20 10:16   ` [Announce] Checkpoint-restore tool v0.2 Pavel Emelyanov
2012-09-20 10:16     ` Pavel Emelyanov
     [not found]     ` <505AECF0.6070607-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-09-20 13:05       ` Serge Hallyn
2012-09-20 13:05         ` Serge Hallyn
2012-09-20 13:05       ` Serge Hallyn

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