Public bug reported:

On Ubuntu Core 18, the memory cgroup is disabled, it seems that it needs
to be manually enabled. I was able to enable it by adding
`cgroup_enable=memory cgroup_memory=1` to the kernel command line, but
on Ubuntu I think the memory cgroup should be enabled by default
shouldn't it?

$ cat /proc/cgroups
#subsys_name    hierarchy       num_cgroups     enabled
cpuset  2       1       1
cpu     4       100     1
cpuacct 4       100     1
blkio   5       100     1
memory  0       109     0
devices 6       100     1
freezer 9       4       1
net_cls 3       1       1
perf_event      10      1       1
net_prio        3       1       1
pids    8       107     1
rdma    7       1       1

I see this with

Linux localhost 5.4.0-1043-raspi #47~18.04.1-Ubuntu SMP PREEMPT Mon Aug
23 14:39:46 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux

on Ubuntu Core 18, but folks have informed me that the same is true on
Ubuntu Core 20 as well.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  On Ubuntu Core 18, the memory cgroup is disabled, it seems that it needs
  to be manually enabled. I was able to enable it by adding
  `cgroup_enable=memory cgroup_memory=1` to the kernel command line, but
  on Ubuntu I think the memory cgroup should be enabled by default
  shouldn't it?
  
  $ cat /proc/cgroups
  #subsys_name  hierarchy       num_cgroups     enabled
  cpuset        2       1       1
  cpu   4       100     1
  cpuacct       4       100     1
  blkio 5       100     1
  memory        0       109     0
  devices       6       100     1
  freezer       9       4       1
  net_cls       3       1       1
  perf_event    10      1       1
  net_prio      3       1       1
  pids  8       107     1
  rdma  7       1       1
+ 
+ I see this with
+ 
+ Linux localhost 5.4.0-1043-raspi #47~18.04.1-Ubuntu SMP PREEMPT Mon Aug
+ 23 14:39:46 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux
+ 
+ on Ubuntu Core 18, but folks have informed me that the same is true on
+ Ubuntu Core 20 as well.

-- 
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1945369

Title:
  memory cgroup disabled on Ubuntu Core 18

Status in linux package in Ubuntu:
  New

Bug description:
  On Ubuntu Core 18, the memory cgroup is disabled, it seems that it
  needs to be manually enabled. I was able to enable it by adding
  `cgroup_enable=memory cgroup_memory=1` to the kernel command line, but
  on Ubuntu I think the memory cgroup should be enabled by default
  shouldn't it?

  $ cat /proc/cgroups
  #subsys_name  hierarchy       num_cgroups     enabled
  cpuset        2       1       1
  cpu   4       100     1
  cpuacct       4       100     1
  blkio 5       100     1
  memory        0       109     0
  devices       6       100     1
  freezer       9       4       1
  net_cls       3       1       1
  perf_event    10      1       1
  net_prio      3       1       1
  pids  8       107     1
  rdma  7       1       1

  I see this with

  Linux localhost 5.4.0-1043-raspi #47~18.04.1-Ubuntu SMP PREEMPT Mon
  Aug 23 14:39:46 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux

  on Ubuntu Core 18, but folks have informed me that the same is true on
  Ubuntu Core 20 as well.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1945369/+subscriptions


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