[CRIU] Error in dumping LXC container

[Pavel Emelyanov]

On 01/20/2015 07:32 PM, beproject criu wrote:
> Hi,
> I am trying to dump a lxc container using the below command
> 
> #criu dump --root /usr/local/lib/lxc/rootfs/root --evasive-devices \
> --tcp-established --ext-mount-map /dev:dev --file-locks -n net -n mnt \
> -n ipc -n pid -vvvvvvvv -D data -o dumplog.txt -t 82
> 
> but i am getting the following errors. I have attached the full dumplog file with this mail.
> 
> (03.458634) Error (mount.c:595): FS mnt ./cache dev 0x1f00002 root / unsupported id 3a

Which filesystem is mounted inside container into /cache directory?

> (03.458850) Collecting netns 8/82
> (03.458979) Switching to 82's net for collecting sockets
> .
> (03.501004) Error (mount.c:2257): The root task has another root than mntns: /usr/local/lib/lxc/rootfs/root

Andrey? What does it mean?

> (03.502407) Warn  (libnetlink.c:20): Trimmed RTA: len -28, rta_len 0
> 
> (03.502691) Error (sk-inet.c:364): Can't check shutdown state of inet socket

This message is harmless, but your kernel looks as too old :) What is it?

> (03.504395)     Collected: ino 0xd307be00 family    2 type    1 port    18703 state  5 src_addr 0.178.7.211
> (03.504568)     Collected: ino 0x       0 family    2 type    1 port    20489 state  1 src_addr 0.190.7.211
> 
> What could be the reason for this?
> 
> Thanks.
> 
> 
> _______________________________________________
> CRIU mailing list
> CRIU at openvz.org
> https://lists.openvz.org/mailman/listinfo/criu
>