[CRIU] Incremental checkpoint

[Pavel Emelyanov]

On 10/18/2014 04:18 AM, Sanidhya Kashyap wrote:
> Hi,
> 
> As it can be seen from the pre-dump that the parasite is injected
> every time when we a pre-dump command is issued. In case of multiple
> calls to pre-dump, the parasite injection is performed repeatedly and
> then removed after the call.
> 
> I wanted to know whether we can let the parasite live there in the
> program for the repeated dumps. Or is there a possibility of parasite
> memory getting overwritten by the process at the time of process'
> execution?

Yes, exactly. Since we cannot trust the process we dump, if we leave
the parasite code in it and detach, the latter can be either corrupted
or unmapped. Thus we remove it from task and put it back when required.

Thanks,
Pavel