Checkpoint/restart using Core Dump in Linux

Question

Can Checkpoint/restart be implemented using the core dump of a process? The core file contains a complete memory dump of the process, thus in theory it should be possible t

Answer 1

As I commented, you could look for application checkpoint and use some libraries like Berkley Lab Checkpoint & Restart. However, these libraries don't use exactly a core(5) dump file, and have several limitations and conventions on what the checkpointing program can do, and what exactly is persistent in the checkpoint image. (open file descriptors and network sockets usually cannot be persisted).

Some Unix (and perhaps some patched Linux kernels) had limited checkpoint facilities in the kernel itself (in the 1980s Cray Unix had some).