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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https://bugs.launchpad.net/bugs/1945369
Title:
memory cgroup disabled on Ubuntu Core 18
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