These patchset introduces kernel based checkpointing/restart as it is implemented in OpenVZ project. This version (v2) supports multiple processes with simple private memory and open files (regular files). Todo: - Create processes with the same PID during restart - Add support for x86-64 - Add support for shared objects Changelog: 18 Oct 2008 (v2): - Add support for multiple processes - Cleanup and bug fixes -- This patchset introduces kernel based checkpointing/restart as it is implemented in OpenVZ project. This patchset has limited functionality and are able to checkpoint/restart only single process. Recently Oren Laaden sent another kernel based implementation of checkpoint/restart. The main differences between this patchset and Oren's patchset are: * In this patchset checkpointing initiated not from the process (right now we do not have a container, only namespaces), Oren's patchset performs checkpointing from the process context. * Restart in this patchset is initiated from process, which restarts a new process (in new namespaces) with saved state. Oren's patchset uses the same process from which restart was initiated and restore saved state over it. * Checkpoint/restart functionality in this patchset is implemented as a kernel module As checkpointing is initiated not from the process which state should be saved we should freeze a process before saving its state. Right now Container Freezer from Matt Helsley can be used for this. This patchset introduce only a concept how kernel based checkpointing/restart can be implemented and are able to checkpoint/restart only a single process with simple VMAs. I've tried to split my patchset in small patches to make review more easier. _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers