Top: failed /proc/stat open: Transport endpoint is not connected

hello

lxc version
Client version: 4.24
Server version: 4.24

I have faced with the problem:
can’t start or reload services inside containers
utilities like top df not working too
#lxc stop freezes

how to fix it
thanks

the error message displayed:

top

top: failed /proc/stat open: Transport endpoint is not connected

df -h

df: '/proc/cpuinfo': Transport endpoint is not connected
df: '/proc/diskstats': Transport endpoint is not connected
df: '/proc/loadavg': Transport endpoint is not connected
df: '/proc/meminfo': Transport endpoint is not connected
df: '/proc/stat': Transport endpoint is not connected
df: '/proc/swaps': Transport endpoint is not connected
df: '/proc/uptime': Transport endpoint is not connected
df: '/sys/devices/system/cpu/online': Transport endpoint is not connected
df: '/sys/fs/cgroup/blkio': Transport endpoint is not connected
df: '/sys/fs/cgroup/cpu': Transport endpoint is not connected
df: '/sys/fs/cgroup/cpuset': Transport endpoint is not connected
df: '/sys/fs/cgroup/devices': Transport endpoint is not connected
df: '/sys/fs/cgroup/freezer': Transport endpoint is not connected
df: '/sys/fs/cgroup/hugetlb': Transport endpoint is not connected
df: '/sys/fs/cgroup/memory': Transport endpoint is not connected
df: '/sys/fs/cgroup/net_cls': Transport endpoint is not connected
df: '/sys/fs/cgroup/perf_event': Transport endpoint is not connected
df: '/sys/fs/cgroup/pids': Transport endpoint is not connected
df: '/sys/fs/cgroup/systemd': Transport endpoint is not connected
Filesystem                           Size  Used Avail Use% Mounted on
/dev/vg_ct_100/containers_roundcube  2.7G  1.1G  1.6G  40% /
none                                 492K  4.0K  488K   1% /dev
devtmpfs                             7.8G     0  7.8G   0% /dev/tty
tmpfs                                100K     0  100K   0% /dev/lxd
tmpfs                                100K     0  100K   0% /dev/.lxd-mounts
none                                  10M     0   10M   0% /sys/fs/cgroup
tmpfs                                7.8G     0  7.8G   0% /dev/shm
tmpfs                                7.8G   45M  7.8G   1% /run
tmpfs                                1.6G     0  1.6G   0% /run/user/0

It sounds like lxcfs has stopped/crashed. Can you check if its running from ps aux | grep lxcfs?

You will need to restart your containers once it is running again.

Try using lxc stop -f <instance> to forcefully stop the instance.

ps aux | grep lxcfs

root 4719 0.0 0.0 372800 1872 ? Sl мар17 0:01 lxcfs /var/snap/lxd/common/var/lib/lxcfs -p /var/snap/lxd/common/lxcfs.pid

the force restart solved the issue