Andrew Morton wrote: > On Mon, 22 Feb 2010 18:17:00 -0500 > Oren Laadan <orenl@xxxxxxxxxxxxxxx> wrote: > >> 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 > > Does "Refuses to Checkpoint" mean that an attempt to checkpoint will > fail, return the failure to userspace and the system continues as > before? Yes. Also, there is a mechanism in place to report the reason for the failure (e.g. the offending resource) to the user. > >> 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 >> > > I'd suggest waiting until very shortly after 2.6.34-rc1 then please > send all the patches onto the list and let's get to work. > Sounds good -- will do. Thanks, Oren. _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
