On 10/02/15 22:29, Serge Hallyn wrote: > Thanks. Can you show /proc/self/mountinfo? > > cgmanager has made it so it can receive umount events from host ns, > but my guess is / in host ns is still private so it doesn't send > them. So cgmanager will need to umount everything it doesn't need > at startup, or not create a private mount namespace. >
Minus three private Virtualbox shares (this is after the aufs umount, so the cgmanager process is this plus the earlier example): ==================================================================== omega@debian-testing-vm:~$ cat /proc/self/mountinfo 14 19 0:14 / /sys rw,nosuid,nodev,noexec,relatime - sysfs sysfs rw 15 19 0:3 / /proc rw,nosuid,nodev,noexec,relatime - proc proc rw 16 19 0:5 / /dev rw,relatime - devtmpfs udev rw,size=10240k,nr_inodes=125654,mode=755 17 16 0:11 / /dev/pts rw,nosuid,noexec,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=000 18 19 0:15 / /run rw,nosuid,noexec,relatime - tmpfs tmpfs rw,size=102424k,mode=755 19 0 8:1 / / rw,relatime - ext4 /dev/sda1 rw,errors=remount-ro,data=ordered 20 18 0:16 / /run/lock rw,nosuid,nodev,noexec,relatime - tmpfs tmpfs rw,size=5120k 21 14 0:17 / /sys/fs/pstore rw,relatime - pstore pstore rw 23 18 0:19 / /run/shm rw,nosuid,nodev,noexec,relatime - tmpfs tmpfs rw,size=204840k 24 14 0:20 / /sys/fs/fuse/connections rw,relatime - fusectl fusectl rw 25 19 0:21 / /mnt/test-1 rw,relatime - btrfs /dev/sdb1 rw,space_cache 27 15 0:25 / /proc/sys/fs/binfmt_misc rw,nosuid,nodev,noexec,relatime - binfmt_misc binfmt_misc rw 29 14 0:26 / /sys/fs/cgroup rw,relatime - tmpfs cgroup rw,size=12k,mode=755 59 29 0:37 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime - cgroup systemd rw,release_agent=/usr/lib/x86_64-linux-gnu/systemd-shim-cgroup-release-agent,name=systemd 60 18 0:41 / /run/user/120 rw,nosuid,nodev,relatime - tmpfs tmpfs rw,size=102424k,mode=700,uid=120,gid=131 61 18 0:42 / /run/user/1000 rw,nosuid,nodev,relatime - tmpfs tmpfs rw,size=102424k,mode=700,uid=1000,gid=1000 ==================================================================== Should be a pretty standard 64bit Debian Testing VM bar blacklisting the systemd init takeover.
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