| Re: [Announce] Checkpoint-restore tool v0.1 [message #47334 is a reply to message #47333] |
Tue, 31 July 2012 09:07   |
Pavel Emelyanov
Messages: 8
Registered: October 2011
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Junior Member |
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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
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