On Thu, Jul 21, 2016 at 03:37:22PM +0000, Katerina Koukiou wrote: > This patch series adds support for saving an running lxc domain's state into > files with lxcDomainSave and restore afterwards from files with lxcDomainRestore. > Usage: virsh save [domain-name] [domain-id or domain-uuid] [directory name] > I use CRIU tool (https://criu.org/Main_Page), that offers checkpoint/restore > functionality for containers in userspace. > For the time, I have tried successfully the C/R procedure for simple sh containers > and OS containers. > I'll mention some notes/issues here: > *I have working C/R only for non systemd hosts (on systemd host I was facing > problems with CRIU). > *I have not done anything for container networking. Thats should be done with > --veth-pair IN=OUT option in CRIU. > *In new distros, where efivars mountpoint exists, CRIU dump fails. > *The only tty restored is /dev/tty1. I'll fix this in another patch, to allow more ttys. > *Currently for things to work, I have slightly modified criu source. That is in criu master > I have the following diff: > > diff --git a/criu/tty.c b/criu/tty.c > index 302dd54..2226484 100644 > --- a/criu/tty.c > +++ b/criu/tty.c > @@ -1394,8 +1394,10 @@ static int verify_info(struct tty_info *info) > */ > if (term_opts_missing_any(info)) { > if (tty_is_master(info)) { > + /* > pr_err("Corrupted master peer %x\n", info->tfe->id); > return -1; > + */ > } else if (!term_opts_missing_all(info)) { > pr_err("Corrupted slave peer %x\n", info->tfe->id); > return -1; > > Lastly, I have ready a patch that adds support for migration but I wait for > feedback on this series, and I'll send the migration one later. > Anyway, any comments here are more than welcome. I'd recommend focusing on getting save/restore more broadly functional before considering anything todo with migration. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list