Trying to turn on cgroup cpuset

[Shin Hashitani]

Hi,

Is there a way to enable cpuset on Pi Zero on ClusterHAT?

(For Pi3 B using to host ClusterHAT, it is enabled.)

I have been trying to set up a kubernetes cluster on ClusterHAT for about two weeks.

Kubernetes requires cpuset to be enabled, but somehow adding it in cmdline.txt does not.

I am using the P1 Stretch Lite image for Zero P1 on the site.

$ uname -a

Linux p1 4.14.34+ #1110 Mon Apr 16 14:51:42 BST 2018 armv6l GNU/Linux

$ cat /proc/cgroups

#subsys_name    hierarchy       num_cgroups     enabled

cpu     6       46      1

cpuacct 6       46      1

blkio   3       46      1

memory  4       70      1

devices 5       46      1

freezer 7       1       1

net_cls 2       1       1

$ ls -al /sys/fs/cgroup/

total 0

drwxr-xr-x 9 root root 220 Nov  3  2016 .

drwxr-xr-x 5 root root   0 Jan  1  1970 ..

dr-xr-xr-x 5 root root   0 Nov  3  2016 blkio

lrwxrwxrwx 1 root root  11 Nov  3  2016 cpu -> cpu,cpuacct

lrwxrwxrwx 1 root root  11 Nov  3  2016 cpuacct -> cpu,cpuacct

dr-xr-xr-x 5 root root   0 Nov  3  2016 cpu,cpuacct

dr-xr-xr-x 5 root root   0 Nov  3  2016 devices

dr-xr-xr-x 2 root root   0 Nov  3  2016 freezer

dr-xr-xr-x 5 root root   0 Nov  3  2016 memory

dr-xr-xr-x 2 root root   0 Nov  3  2016 net_cls

dr-xr-xr-x 5 root root   0 Nov  3  2016 systemd

$ dmesg | grep cpu

[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768

[    0.000000] pcpu-alloc: [0] 0

[    0.000000] Kernel command line: bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000  dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 cgroup_enable=memory cgroup_enable=cpuset elevator=deadline fsck.repair=yes rootwait g_cdc.host_addr=00:22:82:ff:fe:01 g_cdc.dev_addr=00:22:82:ff:ff:01 console=ttyGS0 modules-load=dwc2,g_cdc

[    0.392912] bcm2835-cpufreq: min=700000 max=1000000

[    0.407903] ledtrig-cpu: registered to indicate activity on CPUs

Regards,

Shin Hashitani

[Shin Hashitani]

Never mind.

I checked on another Pi Zero (p2), and there cpuset was available.

$ cat /proc/cgroups

#subsys_name    hierarchy       num_cgroups     enabled

cpuset  4       4       1

cpu     2       49      1

cpuacct 2       49      1

blkio   8       49      1

memory  3       52      1

devices 7       49      1

freezer 6       4       1

net_cls 5       4       1

I must have broken something while working on p1.
I will just do it again from the image.

Regards,

Shin Hashitani

2018年5月19日土曜日 12時00分58秒 UTC+9 Shin Hashitani: