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We tune the CHLD handler if we're restoring root task as sibling. This tuning is better to be done with one sigaction() call, rather than two. First, it's shorter and the second -- it will allow us to move the whole criu signalling setup into one helper. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Acked-by: Andrew Vagin <avagin@parallels.com>
criu ==== 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: http://criu.org/Installation * A simple example of usage: http://criu.org/Simple_loop * More sophisticated example with graphical app: http://criu.org/VNC