rapl broken in newer kernels #1892
Description
Host operating system: output of uname -a
Linux localhost 5.4.77 #1-NixOS SMP Tue Nov 10 20:13:20 UTC 2020 x86_64 GNU/Linux
node_exporter version: output of node_exporter --version
node_exporter, version 1.0.1 (branch: , revision: v1.0.1)
build user:
build date:
go version: go1.15.5
node_exporter command line flags
/nix/store/wmjjwpn7h2y5vpms5x2zf9qg9fp60d8c-node_exporter-1.0.1/bin/node_exporter --collector.arp --collector.bcache --collector.conntrack --collector.filefd --collector.logind --collector.netclass --collector.netdev --collector.netstat --collector.rapl --collector.sockstat --collector.softnet --collector.stat --collector.systemd --collector.textfile --collector.textfile.directory /run/prometheus-node-exporter --collector.thermal_zone --collector.time --collector.udp_queues --collector.uname --collector.vmstat --collector.cpu --collector.cpufreq --collector.diskstats --collector.edac --collector.entropy --collector.filesystem --collector.hwmon --collector.interrupts --collector.ksmd --collector.loadavg --collector.meminfo --collector.pressure --collector.timex --collector.zfs --web.listen-address 0.0.0.0:9100 --collector.disable-defaults
Are you running node_exporter in Docker?
No.
What did you do that produced an error?
Upgraded the kernel to 5.4.77 and rebooted.
What did you expect to see?
No errors.
What did you see instead?
Nov 19 14:47:21 localhost node_exporter[3135]: level=error ts=2020-11-19T14:47:21.869Z caller=collector.go:161 msg="collector failed" name=rapl duration_seconds=0.000307877 err="open /sys/class/powercap/intel-rapl:0/energy_uj: permission denied"
This seems to be caused by https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.4.77&id=19f6d91bdad42200aac557a683c17b1f65ee6c94