[CRIU] external mountpoint issue for docker
Bing X
xiebingbing at gmail.com
Wed Jun 4 08:35:28 PDT 2014
thanks, I'll follow your suggestions. But one thing before that, I want to
verify that if I correctly modified the scripts (including run.sh,
run_ns.sh).
My understand is that the sample under /etc/mounts/ext/ is for mouting
$current_dir to another place, binding it and then dumping.
For my purpose, I need to change it to my docker container root dir. Is
this correct?
thanks,
Bing
On Wed, Jun 4, 2014 at 7:27 AM, Pavel Emelyanov <xemul at parallels.com> wrote:
> 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
>
--
Thanks
Bing
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