Hexxeh / rpi-firmware

Firmware files for the Raspberry Pi

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cgroups not enabled? #234

Closed fransking closed 4 years ago

fransking commented 4 years ago

Details here https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=280656&p=1701228#p1701228

but in summary 5.4.51-v7+ (RPI 3B+) reports this in the syslog

Jul 23 18:27:01 pi-kub1 k3s[763]: time="2020-07-23T18:27:01.047449579+01:00" level=fatal msg="failed to find memory cgroup, you may need to add \"cgroup_memory=1 cgroup_enable=memory\" to your linux cmdline (/boot/cmdline.txt on a Raspberry Pi)"

but 5.4.51-v7l+ seems ok (RPI 4)

fransking commented 4 years ago

I should point out that I do have cgroup_memory=1 cgroup_enable=memory added to /boot/cmdline.txt

carpie commented 4 years ago

This happened to me as well. My k3s cluster failed to operate after doing an apt upgrade. It appears in the v5 kernel memory cgroups aren't configured? cat /proc/cgroups does not show a memory entry.

If it helps anyone, I ran sudo rpi-update e1050e94821a70b2e4c72b318d6c6c968552e9a2 to revert to the 4.19.118 kernel to rescue my cluster.

fransking commented 4 years ago

Looks like https://github.com/Hexxeh/rpi-firmware/commit/56f62dee2a2385fe030724f7b39344fbc8c8d7ab resolves this issue and a fresh sudo rpi-update (no hash) gives me a 5.4.51-v7+ kernel with cgroups

~ $ cat /proc/cgroups

subsys_name hierarchy num_cgroups enabled

cpuset 6 16 1 cpu 8 47 1 cpuacct 8 47 1 blkio 4 47 1 memory 3 83 1 devices 2 47 1 freezer 9 16 1 net_cls 7 16 1 pids 5 51 1