The following actually seems to work. Instead of using an overlayfs for all of /var/lib/lxc/q1-tmp-XXXXX, it only uses the overlayfs mount for /var/lib/lxc/q1-tmp-XXXXXX/rootfs. That way, as per Miklos' comment, /proc/self/fd and /proc/self/maps contents are resolved relative to the overlayfs root the same way as relative to the container rootfs.
Won't help for userspace inside the container which does chroot/pivot_root, but for a simple container it solves the bug for me. ** Patch added: "lxc-maps.debdiff" https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/959352/+attachment/3260628/+files/lxc-maps.debdiff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/959352 Title: Ephemeral containers have "/rootfs" prefix in /proc/self/maps entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/959352/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
