[CRIU] checkpoint failure in docker test

[Ross Boucher]

We may be able to get it merged into experimental without fixing this, but
I doubt they will merge this into the main Docker engine without tests, and
writing a test is where I'm running into this problem.

On Wed, Jun 29, 2016 at 2:07 AM Andrew Vagin <avagin at virtuozzo.com> wrote:

> On Tue, Jun 28, 2016 at 10:13:13PM +0000, Ross Boucher wrote:
> > Andrew, did you have any other thoughts on this?
>
>   > And I ran the exact same commands outside of docker-in-docker just
> fine,
>   > so its AUFS docker-in-docker that isn't working I guess.
>
> How is it critical for us to solve this issue? I am not a big fan of
> aufs and overlayfs. Will this issue block a pull-request into Docker?
>
> >
> > On Tue, Jun 28, 2016 at 9:49 AM Pavel Emelyanov <xemul at virtuozzo.com>
> wrote:
> >
> >     On 06/23/2016 09:25 AM, Andrew Vagin wrote:
> >     > On Thu, Jun 23, 2016 at 05:16:24AM +0000, Ross Boucher wrote:
> >     >> Just updated and posted some comments to that thread.
> >     >
> >     > Thanks!
> >     >
> >     > Can you try to reproduce this problem with the devicemapper driver?
> >
> >     Is it again overlayfs bug?
> >
> >     > I think it will work.
> >     >
> >     > -- Andrew
> >     >
> >     >>
> >     >> On Thu, Jun 23, 2016 at 1:12 AM Andrew Vagin <
> avagin at virtuozzo.com>
> >     wrote:
> >     >>
> >     >>     On Wed, Jun 22, 2016 at 11:21:48PM +0000, Ross Boucher wrote:
> >     >>     > I've got a checkpoint failure with the automated test I'm
> trying
> >     to add
> >     >>     to
> >     >>     > docker. Here's the log:
> >     >>     >
> >     >>     >
> https://gist.github.com/boucher/d122da7fc9a93cfb8e6dbe1444791f5f
> >     >>     >
> >     >>     > From reading the log, it seems like an empty path is trying
> to be
> >     >>     mounted? I'm
> >     >>     > not sure where that might be coming from. It's probably
> worth
> >     noting that
> >     >>     this
> >     >>     > is running docker in docker, but I know we've gotten that
> to work
> >     in the
> >     >>     past.
> >     >>
> >     >>     Which storage driver do you use here?
> >     >>     Could you show output for "ls -l /proc/pid/fd
> /proc/pid/map_files"
> >     >>     for the init process?
> >     >>
> >     >>     > _______________________________________________
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> >     >>
> >     >>
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> >     > .
> >     >
> >
> >
>
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