[CRIU] external mountpoint issue for docker

[Pavel Emelyanov]

On 06/04/2014 01:57 AM, Bing X wrote:
> I was saying that I could not successfully create a process tree to dump.
> 
> What I was doing is to move the external mountpoint to somewhere else, and then dump. 
> 
> I was following the run.sh sample, and I got an error from run_ns.sh (which reported
> as can't unshare). in summary, I was stopped before I could do the criu dump.
> 
> Let me know if it makes sense to you.

OK, I see. Please investigate what's the problem with unsharing. You
can use the strace tool for that to find out which syscall fails. Then
you will be able to check what kernel features or security privileges
may be missing.

Thanks,
Pavel