On 12/04/2013 10:12 PM, Serge Hallyn wrote: > Quoting Nipun Arora (ni...@cs.columbia.edu): >> Hi, >> >> I've been tryint criu for checkpointing and restart. One of the issues is >> that criu does not support external console. >> I tried setting lxc.console = none, and lxc.tty = 0... but seem to get no >> progress when I run the following command.. >> >> lxc-create -t ubuntu -n test_lxc -f test_config >> lxc-start -n test_lxc >> >> The config file basically has only the following 2 lines >> lxc.console = none >> lxc.tty = 0 >> >> Can someone help out in explaining why this is happening? > > I think it's been explained before - the external console points > to a device file sitting in another mount namespace. criu can't > checkpoint that.
Ack. > Back in the in-kernel checkpoint days, IIRC we allowed such files > to be marked as uncheckpointable in the image, and the restart > program to fill those fds in with fds it had opened beforehand. > > Can that be done with crui? In theory -- yes. IOW -- we need to patch criu to achieve that. I planned to make this support using plugins to criu that help dumping external mount points. Currently Andrey works on such a plugin for external unix sockets, you can find his patches on the list From: avagin@. Similar thing can be done for external (bind)mounts. Does it make sense for you? > -serge Thanks, Pavel ------------------------------------------------------------------------------ Sponsored by Intel(R) XDK Develop, test and display web and hybrid apps with a single code base. Download it for free now! http://pubads.g.doubleclick.net/gampad/clk?id=111408631&iu=/4140/ostg.clktrk _______________________________________________ lxc-users mailing list lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
