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.