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 13:07:31 +0400 [thread overview]
Message-ID: <5017A053.9000206@parallels.com> (raw)
In-Reply-To: <CAFLxGvygCxER3gHfj-onwnm_m6xugOVkynGyJU2CDheD3A2HOQ@mail.gmail.com>
On 07/31/2012 12:57 PM, richard -rw- weinberger wrote:
> On Tue, Jul 31, 2012 at 10:53 AM, Pavel Emelyanov <xemul@parallels.com> wrote:
>> On 07/30/2012 02:42 PM, richard -rw- weinberger wrote:
>>> On Mon, Jul 23, 2012 at 10:53 AM, Pavel Emelyanov <xemul@parallels.com> wrote:
>>>> This project is an attempt to implement the checkpoint-restore functionality
>>>> for processes and containers without driving too much code into the kernel tree,
>>>> but putting there "various oddball helper code" instead.
>>>
>>> Is CRIU able to checkpoint a process tree where one or more processes
>>> are traced using ptrace()?
>>
>> No it's not (currently).
>>
>>> crtools seem to use ptrace() to execute parasite system calls.
>>> AFAIK this will only work if the target process is currently not
>>> ptraced() by another process.
>>>
>>
>> Yup, exactly.
>
> Dammit, I hoped we can get suspend/resume for UserModeLinux for free
> with CRIU. 8-)
Sorry :( However, if you can help with patches on that issue that would be
highly appreciated :)
Thanks,
Pavel
next prev parent reply other threads:[~2012-07-31 9:07 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-23 8:22 [Announce] Checkpoint-restore tool v0.1 Pavel Emelyanov
2012-07-23 8:53 ` Pavel Emelyanov
2012-07-23 13:14 ` Serge Hallyn
2012-07-30 10:42 ` richard -rw- weinberger
2012-07-31 8:53 ` Pavel Emelyanov
2012-07-31 8:57 ` richard -rw- weinberger
2012-07-31 9:00 ` Cyrill Gorcunov
2012-07-31 9:07 ` Pavel Emelyanov [this message]
2012-07-31 9:29 ` richard -rw- weinberger
2012-07-31 9:54 ` Pavel Emelyanov
2012-07-31 10:08 ` richard -rw- weinberger
2012-07-31 10:16 ` Cyrill Gorcunov
2012-07-31 10:21 ` richard -rw- weinberger
2012-07-31 10:30 ` Cyrill Gorcunov
2012-09-20 10:16 ` [Announce] Checkpoint-restore tool v0.2 Pavel Emelyanov
2012-09-20 13:05 ` Serge Hallyn
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