[CRIU] Error in dumping LXC container

[Andrey Wagin]

2015-01-20 23:17 GMT+03:00 Pavel Emelyanov <xemul at parallels.com>:
> 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?

/usr/local/lib/lxc/rootfs/root isn't a mount point

>
>> (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.
>>
>>
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>