ksched failed to insert

Hi,

I face the similar problem with this issue when running sudo ./scripts/setup_machine.sh. Previous compilation in build.sh has no errors.

rmmod: ERROR: Module ksched is not currently loaded
insmod: ERROR: could not insert module ./scripts/../ksched/build/ksched.ko: Unknown error 524

I think I enabled cstate?? cat /sys/module/intel_idle/parameters/max_cstate shows 9. However, cpuid | grep "C-states" shows all 0s as follows, unlike the output from the xl170 on cloudlab machine: My VM:

dssl@ubuntu1804-2:~/AIFM/shenango$ sudo cpuid | grep "C-states"
      number of C0 sub C-states using MWAIT    = 0x0 (0)
      number of C1 sub C-states using MWAIT    = 0x0 (0)
      number of C2 sub C-states using MWAIT    = 0x0 (0)
      number of C3 sub C-states using MWAIT    = 0x0 (0)
      [...]
      number of C5 sub C-states using MWAIT    = 0x0 (0)
      number of C6 sub C-states using MWAIT    = 0x0 (0)
      number of C7 sub C-states using MWAIT    = 0x0 (0)
dssl@ubuntu1804-2:~/AIFM/shenango$ sudo dmesg | grep intel_idle
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.0.0-20-generic root=UUID=a5ec041b-3cac-43ff-9df1-ecc38fa4240c ro intel_idle.max_cstate=5 quiet splash vt.handoff=1
[    0.381777] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.0.0-20-generic root=UUID=a5ec041b-3cac-43ff-9df1-ecc38fa4240c ro intel_idle.max_cstate=5 quiet splash vt.handoff=1
[    2.139392] intel_idle: does not run on family 6 model 106

cloudlab machine:

lyuze@node-0:~/AIFM$ cpuid | grep "C-states"
      number of C0 sub C-states using MWAIT    = 0x0 (0)
      number of C1 sub C-states using MWAIT    = 0x2 (2)
      number of C2 sub C-states using MWAIT    = 0x1 (1)
      number of C3 sub C-states using MWAIT    = 0x2 (2)
      [...]
lyuze@node-0:~/AIFM$ sudo dmesg | grep intel_idle
[    9.699260] intel_idle: MWAIT substates: 0x2120
[    9.699261] intel_idle: v0.4.1 model 0x4F
[    9.699931] intel_idle: lapic_timer_reliable_states 0xffffffff

May I know what's important with the ksched.ko module? Does it matter if not installing it? My VM runs on ubuntu18.04:

dssl@ubuntu1804-2:~/AIFM/shenango$ uname -r
5.0.0-20-generic
dssl@ubuntu1804-2:~/AIFM/shenango$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.6 LTS
Release:        18.04
Codename:       bionic

AIFM-sys / AIFM

ksched failed to insert #21