[CRIU] Checkpointing failed

Thouraya TH thouraya87 at gmail.com
Tue Oct 7 01:48:33 PDT 2014


Thanks for answer :)

sudo umount  /sys/fs/fuse/

That's it ?

Bests.

2014-10-07 9:23 GMT+01:00 Pavel Emelyanov <xemul at parallels.com>:

> On 10/06/2014 09:18 PM, Thouraya TH wrote:
> > Hello :) Thanks for answer :)
> >
> > root at u1:/# cd /sys/fs/fuse/connections
> > root at u1:/sys/fs/fuse/connections# ls
> > 30
> > root at u1:/sys/fs/fuse/connections# cd 30/
> > root at u1:/sys/fs/fuse/connections/30# ls
> > abort  congestion_threshold  max_background  waiting
> >
> > root at u1:~# cat /proc/self/mountinfo
> > 69 52 8:1 /var/lib/lxc/u1/rootfs / rw,relatime - ext4
> /dev/disk/by-uuid/afcb71d4-c111-4988-ae14-df81b2a06181
> rw,errors=remount-ro,data=ordered
> > 70 69 0:32 / /proc rw,nosuid,nodev,noexec,relatime - proc proc rw
> > 71 69 0:33 / /sys rw,relatime - sysfs sysfs rw
> > 72 71 0:16 / /sys/fs/fuse/connections rw,relatime - fusectl none rw
> > 73 71 0:6 / /sys/kernel/debug rw,relatime - debugfs none rw
> > 74 71 0:10 / /sys/kernel/security rw,relatime - securityfs none rw
> > 75 71 0:14 /fs/pstore /sys/fs/pstore rw,nosuid,nodev,noexec,relatime -
> sysfs sysfs rw
> > 53 69 0:34 / /dev/pts rw,relatime - devpts devpts
> rw,gid=5,mode=620,ptmxmode=666
> > 54 69 0:34 /ptmx /dev/ptmx rw,relatime - devpts devpts
> rw,gid=5,mode=620,ptmxmode=666
> > 55 71 0:35 / /sys/fs/cgroup rw,relatime - tmpfs none rw,size=4k,mode=755
> > 56 69 0:36 / /run rw,nosuid,noexec,relatime - tmpfs none
> rw,size=97708k,mode=755
> > 57 56 0:37 / /run/lock rw,nosuid,nodev,noexec,relatime - tmpfs none
> rw,size=5120k
> > 58 56 0:38 / /run/shm rw,nosuid,nodev,relatime - tmpfs none rw
> > 59 56 0:39 / /run/user rw,nosuid,nodev,noexec,relatime - tmpfs none
> rw,size=102400k,mode=755
>
> Ah I see. In the upstream kernel fuse and fusectl are not virtualized. So
> the latter fs when mounted inside container reveals fuse mounts from all
> the system. And criu fails to dump one, though none of the connections
> seen inside fusectl belong to this container.
>
> Serge, Tycho, do you have any ideas what can we do about it?
>
> Thouraya, I think for your experiments you can just umount the fusectl fs.
>
> Thanks,
> Pavel
>
>
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