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Currently we fill as much as posible data in a socket and then use half of these data to make a flow in the connection. These data is send and recv buffers. When a connection is dumped and restored, it needs time to go back to the normal work. In this time we can reliably fill only send buffers. So at the result the sockets may contain less data than required for heartbeating and the test will block. The test with this patch will monitor actuall size of data in a test socket. Cc: Konstantin Neumoin <kneumoin@parallels.com> Reported-by: Konstantin Neumoin <kneumoin@parallels.com> Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@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