On Fri, 30 Aug 2013 02:43:00 +0800, ajay saini said:
> I am working on a checkpoint/Restart Linux kernel module.
Have you looked at the already existing checkpoint/restart support?
(and C/R is a lot harder to get right than you think - turns out you
need all sorts of infrastructure. The various namespaces support, for
instance, are to a large degree to allow C/R to work right. For example,
you need PID namespaces so you can properly do C/R of a process that has
done a getpid() call - because you need to restart it with the same PID
that it had at checkpoint time.
in init/Kconfig:
config CHECKPOINT_RESTORE
bool "Checkpoint/restore support" if EXPERT
default n
help
Enables additional kernel features in a sake of checkpoint/restore.
In particular it adds auxiliary prctl codes to setup process text,
data and heap segment sizes, and a few additional /proc filesystem
entries.
If unsure, say N here.
Enjoy, and don't re-invent the wheel.
Attachment:
pgpBL5zYyPWsL.pgp
Description: PGP signature
_______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
