DL> If the checkpoint is done from the kernel, why the restartWell I am a little lost :)
DL> wouldn't be in the kernel too ?
I think thus far we have taken the approach of "if it can be done
reasonably in userspace, then do it there" right?
Setup of theYep, I agree. But you didn't answer the question, what are the network resources you plan to checkpoint / restart ?
network devices is easy to do in userspace, allows more flexibility
from a policy standpoint, and ensures that all existing security
checks are performed.
Also, migration may be easier if the userspaceYou may have some problems with the connected sockets you will restore in this case.
bits can call custom hooks allowing for routing changes and other
infrastructure-specific operations.
DL> Is there any documentation about the statefile format I can use ifArgh ! I was hoping there was something else than the source code :)
DL> I want to implement myself an userspace CR solution based on this
DL> kernel patchset ?
See linux-cr/include/linux/checkpoint_hdr.h and user-cr/restart.c.