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https://github.com/checkpoint-restore/criu
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Currently we remap task_entries but it can be used from a sigchld hanler. We need to block sigchld to remap task_entries and unlock it when a restorer sigchld handler is set. Signed-off-by: Andrei Vagin <avagin@virtuozzo.com> Reviewed-by: Dmitry Safonov <dsafonov@virtuozzo.com> Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
CRIU (Checkpoint and Restore in Userspace)
An utility to checkpoint/restore tasks. Using this tool, you can freeze a running application (or part of it) and checkpoint it to a hard drive as a collection of files. You can then use the files to restore and run the application from the point it was frozen at. The distinctive feature of the CRIU project is that it is mainly implemented in user space.
The project home is at http://criu.org.
Pages worth starting with are:
- Kernel configuration, compilation, etc
- A simple example of usage
- More sophisticated example with graphical app
A video tour on basic CRIU features
How to contribute
- How to submit patches;
- Send all bug reports to mailing list;
- Spread the word about CRIU in social networks;