[CRIU] Can't move into blkio//lxc/ycu/tasks (-1/-1): No such file or directory

[linuxchyu at sina.com]

Hello， I caught an error when i do the migration operation of LXC. Every thing is Ok, if i use the criu version 1.2. But there is an error in the restore stage  when i use the 1.3.1 or 1.4 version criu.  So , how can i fix this error ? The error logs are :
(00.130519)      1: nr_restored_pages: 291
(00.130523)      1: nr_shared_pages:   0
(00.130526)      1: nr_droped_pages:   0
(00.130600)      1: cg: Move into 2
(00.130610)      1: cg: copying special cg props for blkio
(00.130614)      1: cg:   `-> blkio//lxc/ycu/tasks
(00.130624)      1: Error (cgroup.c:958): cg: Can't move into blkio//lxc/ycu/tasks (-1/-1): No such file or directory
(00.130668) Error (cr-restore.c:1780): Restoring FAILED.

Thanks!


linuxchyu at sina.com
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