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Pending signals should be saved, so signals should be blocked. Signals are blocked for EACH command, because a chance of destroying a process state should be a small as possible. At the end there will only two "trapped" commands -- to dump thread and to start daemon in parasite, so this doesn't add significant overheads. If crtools is killed between two commands, a dumped process will run continue. Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
criu ==== An utility to checkpoint/restore tasks. Some code snippets are borrowed from - Linux kernel (http://kernel.org/) - git (http://git-scm.com/) - kvm-tools (https://github.com/penberg/linux-kvm) - ptrace-parasite (https://code.google.com/p/ptrace-parasite/) Many thanks to these projects. Licensed under GPLv2 (http://www.gnu.org/licenses/gpl-2.0.txt)