Linux Checkpoint/Restart

Application checkpoint/restart (c/r) is the ability to save the state of a running application so that it can later resume its execution from the time at which it was checkpointed, on the same or a different machine.

Project Info

• Kernel code: (browse the code) git://www.linux-cr.org/pub/git/linux-cr.git
• User-space code (browse the code) git://www.linux-cr.org/pub/git/user-cr.git
• User-space test suite (browse the code) git://www.linux-cr.org/pub/git/test-cr.git
• Mailing List: containers@lists.linux-foundation.org
• IRC channel: look for #lxcontainers hosted on irc.freenode.net
• Google Summer of Code ideas

Project Status

• What is/is not implemented
• Supported architectures
• SELinux policy
• Changelog

Updates

• 1-May-2010: Version 21 is posted to LKML. Lots of code re-org and some cleanups.
• 25-Feb-2010: LWN covers checkpoint-restart in the Kernel Page after version 19 is posted to LKML.
• 15-Feb-2010: Serge Hallyn reports successful checkpoint-restart of a VNC server running TWM and xeyes !
• 7-Oct-2009: Checkpoint-Restart was presented at the Linux Plumbers Conference. Prior to that we also had a BoF. Notes from these are now available.

In the NEWS

• Nov 2, 2010: Linux-CR push towards mainline (presentation slides) at 2010 Linux Kernel Summit: see LWN report
• Jul 14, 2010: A full technical paper on Linux-CR (presentation slides) published in the Linux Symposium 2010
• Feb 24, 2010: ... One year later LWN re-examines the state of affairs again (LWN article)
• Feb 25, 2009: Attempt to head to mainline gets Linux-CR into LWN again (LWN article)
• Aug 11, 2008: Linux-CR gets first exposure in LWN (LWN article)

FAQ

See FAQ