linux-kernel - Linux Checkpoint-Restart

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <4B83106C.7040203@cs.columbia.edu>
Date:	Mon, 22 Feb 2010 18:17:00 -0500
From:	Oren Laadan <orenl@...columbia.edu>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	"Serge E. Hallyn" <serue@...ibm.com>,
	Linux-Containers <containers@...ts.linux-foundation.org>,
	Linux-Kernel <linux-kernel@...r.kernel.org>
Subject: Linux Checkpoint-Restart - v19

Hi Andrew,

We've put a stake in the ground for our next set of checkpoint/restart
patches, v19. It has some great new stuff, and we put extra effort to
address your concerns. We would like to have the code included in -mm
for wider feedback and testing.

This one is able to checkpoint/restart screen and vnc sessions, and
live-migrate network servers between hosts. It also adds support for
x86-64 (in addition to x86-32, s390x and powerpc). It is rebased to
kernel 2.6.33-rc8.

Since one of your main concerns was about what is not yet implemented
and how complicated or ugly it will be to support that, we've put up
a wiki page to address that. In it there is a simple table that lists
what is not implemented and the anticipated solution impact, and for
some entries a link to more details.

The page is here:   http://ckpt.wiki.kernel.org/index.php/Checklist

We want to stress that the patchset is already very useful as-is. We
will keep working to implement more features cleanly. Some features we
are working on include network namespaces and device configurations,
mounts and mounts namespaces, and file locks. Should a complicated
feature prove hard to implement, users have alternatives systems like
kvm, until we manage to come up with a clean solution.

We believe that maintenance is best addressed through testing. We now
have a comprehensive test-suite to automatically find regressions.
In addition, we ran LTP and the results are the same with CHECKPOINT=n
and =y.

If desired we'll send the whole patchset to lkml, but the git trees
can be seen at:

   kernel:       http://www.linux-cr.org/git/?p=linux-cr.git;a=summary
   user tools:   http://www.linux-cr.org/git/?p=user-cr.git;a=summary
   tests suite:  http://www.linux-cr.org/git/?p=tests-cr.git;a=summary

Thanks,

Application checkpoint/restart team
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/