support for stateful re-exec of upstart, now available for testing

[Steve Langasek]

Hi all,

Thanks to some great work by James, there is now a test branch of upstart
available that supports passing its state when re-execing - rather important
when re-execing an init that does process supervising!

You can find the code here:

  https://code.launchpad.net/~upstart-devel/upstart/stateful-reexec

Once landed, this will enable important functionality such as applying
security updates without rebooting, being able to run upstart in an
initramfs and pass state to the rootfs, and so on.  In the meantime, feel
free to try the branch out and provide feedback on any issues you find.

You will need libjson-c 0.10 or later (available in Ubuntu quantal and
Debian sid) to build this branch.  I believe James is planning to set up a
launchpad recipe build for the branch as well, which I'm sure he will post
once it's available.

Enjoy,
-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org
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