I have two unraid systems and one of them wont enable hyperthreading. its enabled in the bios and I can see that both chips have 6 cores and 12 threads on the system profiler but the dashboard page and cpu pinning page only shows 12 cores total. I have changed motherboards on this system and HT still isn't working. Do I need to reinstall the os on the flash? the update to 6.9.0 didn't fix the issue.

 

thank you.

 

 

Edited March 10, 20215 yr by masterdoofus

Include your complete diagnostics file

attached.

thebeast-diagnostics-20210309-1322.zip

From lscpu:

 

Vulnerability L1tf:              Mitigation; PTE Inversion; VMX conditional cache flushes, SMT disabled
Vulnerability Mds:               Vulnerable: Clear CPU buffers attempted, no microcode; SMT disabled

 

ok so its a safety thing and unraid shuts it off automatically?

You can install the disable security mitigations plugin to handle this.