[CRIU] CRIU in Docker for Mac

[Ross Boucher]

Should I be applying those patches to your alpine branch or to master? I
see they are already in your branch (the one built by travis, right?). When
I build your branch, it compiles alright but the tests fail:

========================== Run zdtm/static/env00 in h
==========================
Start test
./env00 --pidfile=env00.pid --outfile=env00.out --envname=ENV_00_TEST
Run criu dump
=[log]=> dump/zdtm/static/env00/32/1/dump.log
------------------------ grep Error ------------------------
(00.044957) Error (criu/util.c:670): exited, status=3
(00.057244) Error (compel/src/lib/infect-rpc.c:72): Command 66 for daemon
failed with -1
(00.057276) Error (criu/mem.c:464): Can't dump page with parasite
(00.057702) Error (criu/cr-dump.c:1673): Dumping FAILED.
------------------------ ERROR OVER ------------------------
################### Test zdtm/static/env00 FAIL at CRIU dump
###################
Send the 9 signal to  32
##################################### FAIL
#####################################


On Wed, Jan 25, 2017 at 2:12 AM Andrei Vagin <avagin at virtuozzo.com> wrote:

> On Tue, Jan 24, 2017 at 07:37:50PM -0800, Andrei Vagin wrote:
> > On Tue, Jan 24, 2017 at 11:17:28PM +0000, Ross Boucher wrote:
> > > It seems that this function probably isn't implemented in musl:
> > >
> https://git.musl-libc.org/cgit/musl/tree/src/sched/sched_getscheduler.c
> >
> > Uhuuuu. musl is so lightweight and fast!!!!!
> > https://git.musl-libc.org/cgit/musl/tree/src/sched/sched_getparam.c
> >
> > Ross, could you try out this patch:
> >
> https://github.com/avagin/criu/commit/265e9fc138f98b742a68b6991225f28d3c99f9b5
>
> And you need one more patch:
>
> https://github.com/avagin/criu/commit/ff8777b3628eae6b7cc98c7b925cf88508dd3aa8
>
> With these two patches static/env00 passes on Alpine:
>
> https://travis-ci.org/avagin/criu/builds/195081973
>
> >
> > Thanks,
> > Andrei
> >
> > >
> > > Is there any hope for a workaround?
> > >
> > > On Tue, Jan 24, 2017 at 6:09 PM Ross Boucher <rboucher at gmail.com>
> wrote:
> > >
> > >     Installing ip6tables got a bit further, but now it seems to fail
> possibly
> > >     on sched_getscheduler:
> > >
> > >     (00.032508) Error (criu/cr-dump.c:134): Can't get sched policy for
> 2337:
> > >     Function not implemented
> > >
> > >     Full log:
> https://gist.github.com/boucher/5c8edcbf0c7f9d9e39ed1d74c09440e5
> > >
> > >
> > >     On Tue, Jan 24, 2017 at 5:53 PM Ross Boucher <rboucher at gmail.com>
> wrote:
> > >
> > >         Hey everyone,
> > >
> > >         Since checkpoint/restore has shipped in experimental mode for
> Docker, I
> > >         thought I'd try to get it working with Docker for Mac. I think
> this
> > >         should be possible, since it seems building for Alpine linux
> has
> > >         already been taken care of, but I haven't gotten it working
> just yet.
> > >
> > >         What I have done is install CRIU 2.9, from the apk testing
> repository
> > >         for alpine linux, in the d4m vm[1], then run a simple
> checkpoint on a
> > >         busybox container. Here's the dump log:
> > >
> > >
> https://gist.github.com/boucher/2ac2de1d80ab59bce518d108ec8d0371
> > >
> > >         Seems that some network script isn't working, but I'm not sure
> if the
> > >         log is telling me that its an RPC script.
> > >
> > >         Thanis,
> > >         Ross
> > >
> > >
> > >         [1]: You can access the vm with screen:
> > >
> > >         screen ~/Library/Containers/com.docker.docker/Data/
> > >         com.docker.driver.amd64-linux/tty
> > >
> > >
> >
> > > _______________________________________________
> > > CRIU mailing list
> > > CRIU at openvz.org
> > > https://lists.openvz.org/mailman/listinfo/criu
> >
> > _______________________________________________
> > CRIU mailing list
> > CRIU at openvz.org
> > https://lists.openvz.org/mailman/listinfo/criu
>
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