[CRIU] CRIU LXC error

[Urgen Sherpa]

root at ktmnp:/home/nplink/criu-1.1# ./criu dump -D /dumps/ -o dump.log -t
2298 --tcp-established --file-locks --ext-unix-sk -L
/home/nplink/criu-1.1/test/mounts/ext
root at ktmnp:/home/nplink/criu-1.1# cat /dumps/dump.log
Error (parasite-syscall.c:387): si_code=4 si_pid=2538 si_status=5
Error (parasite-syscall.c:387): si_code=4 si_pid=2545 si_status=5
Error (parasite-syscall.c:387): si_code=4 si_pid=2546 si_status=5
Error (tty.c:203): tty: Can't obtain ptmx index: Inappropriate ioctl for
device
Error (cr-dump.c:1493): Dump files (pid: 2700) failed with -1
Error (cr-dump.c:1828): Dumping FAILED.
root at ktmnp:/home/nplink/criu-1.1#

Note: I have put lxc.console=none , lxc.tty=0 in container config
thanks!
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