[slurm-users] Cgroup file write content error in 20.11.7

[smm...@mail.ustc.edu.cn]

Hi all,

I have upgrade my cluster to 20.11.7 version.However I have found my cgroup seems to be invalid.In my log files I can see :

[2021-05-25T20:21:44.185] [18.0] debug:  xcgroup.c:1366: _file_write_content: safe_write (11 of 11) failed: Operation not permitted

[2021-05-25T20:21:44.185] [18.0] error: _file_write_content: unable to write 11 bytes to cgroup /sys/fs/cgroup/devices/slurm/uid_0/job_18/step_0/devices.allow: Operation not permitted

[2021-05-25T20:21:44.185] [18.0] debug2: xcgroup_set_param: unable to set parameter 'devices.allow' to 'c 195:1 rwm' for '/sys/fs/cgroup/devices/slurm/uid_0/job_18/step_0'

[2021-05-25T20:21:44.185] [18.0] debug2: task/cgroup: _cgroup_create_callback: Default access allowed to device c 195:0 rwm(/dev/nvidia0) for step

[2021-05-25T20:21:44.185] [18.0] debug:  xcgroup.c:1366: _file_write_content: safe_write (11 of 11) failed: Operation not permitted

[2021-05-25T20:21:44.185] [18.0] error: _file_write_content: unable to write 11 bytes to cgroup /sys/fs/cgroup/devices/slurm/uid_0/job_18/step_0/devices.allow: Operation not permitted

[2021-05-25T20:21:44.185] [18.0] debug2: xcgroup_set_param: unable to set parameter 'devices.allow' to 'c 195:0 rwm' for '/sys/fs/cgroup/devices/slurm/uid_0/job_18/step_0'

[2021-05-25T20:21:44.185] [18.0] debug2: task/cgroup: _cgroup_create_callback: Default access allowed to device c 195:255 rwm(/dev/nvidiactl) for step

my package command is:

rpmbuild -ta --with slurmrestd  --with mysql --with cgroup --with lua "slurm-20.11.7.tar.bz2"

my SlurmUser in slurm.conf is root.

my slurm.conf and cgroup.conf are same as before which works well.

Does anyone have advice to slove this problem ?Thanks a lot! I have tried all the methods I thought of.

[smm...@mail.ustc.edu.cn]