Arch Linux

eigrad

Member

Registered: 2009-12-02

Posts: 8

Checkpoint/Restore In Userspace

http://en.wikipedia.org/wiki/CRIU:

Checkpoint/Restore In Userspace, or CRIU, is a software tool for Linux operating system. 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.

Are there any chances that http://criu.org/Installation requirements for kernel configuration options would be satisfied in the default archlinux kernel? It require the following parameters to be turned on:

• CONFIG_CHECKPOINT_RESTORE

• CONFIG_UNIX_DIAG

• CONFIG_INET_DIAG

• CONFIG_PACKET_DIAG (looks like this one is still not in vanilla, but it is not very important though)

cybertorture

Member

Registered: 2010-05-05

Posts: 339

Re: Checkpoint/Restore In Userspace

Why not check it ? I am not on my arch box, but it is simply

zcat /proc/config.gz

and look for those parameters.
cheers

Last edited by cybertorture (2012-10-17 12:51:05)

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O' rly ? Ya rly Oo

eigrad

Member

Registered: 2009-12-02

Posts: 8

Re: Checkpoint/Restore In Userspace

This parameters are not set in current config.gz on Archlinux. CRIU also require other parameters, like CONFIG_EPOLL, which are already turned on.

eigrad

Member

Registered: 2009-12-02

Posts: 8

Re: Checkpoint/Restore In Userspace

I mean, is it possible for guys who maintain the linux package to turn on this config options in it? I don't know would there be any side effects or not, and what policy the archlinux developers follow in the questions related to such experimental stuff in the kernel.

tomk

Forum Fellow

From: Ireland

Registered: 2004-07-21

Posts: 9,839

Re: Checkpoint/Restore In Userspace

One way to find out -    submit a feature request.

eigrad

Member

Registered: 2009-12-02

Posts: 8

Re: Checkpoint/Restore In Userspace

Hmm, yeah, I'm somehow forgot that there is a "Feature Request" feature in the bug tracker :-). Thanks.

Created https://bugs.archlinux.org/task/32029