Hyper-V VM constant 100% CPU Load in 2.4.5

Cool_Corona · Apr 5, 2020, 9:01 AM

It generic and happens to a lot of people.

I had to revert to 2.4.4p3 and it stays that way for now. Something i very broken.

Neither pfblocker and ntpd is the culprit here....

helmmer · Apr 9, 2020, 4:10 PM

put all the nuclei exmplo 6 nucles and 6 threads, resolvable my problem was not giving 100 percent of processing and did not force the other virutias machines

carl2187 · Apr 11, 2020, 3:01 AM

upgraded on hyper-v 2016 server vm gen2, zfs root from 2.4.4p2 to 2.4.5, i keep getting high cpu and non-responsive gui and network for 1-2 minutes, then a small active/working period 10-30 seconds, then another outage for 1-2 mins. over and over.

carl2187 · Apr 21, 2020, 7:28 PM

All my issues actually went away by doing clean install from ISO. Factory reset wasn't enough to eliminate the issue on 2.4.5 after upgrade. I clean installed 2.4.5 from iso, imported config, now i don't see any 100% spikes on my 4-core hyper-v gen2 zfs pfsense vms.

I wrote up all my findings on the issue here, I think its the same problem this thread is discussing:
https://forum.netgate.com/topic/149595/2-4-5-a-20200110-1421-and-earlier-high-cpu-usage-from-pfctl/25

Although I see you mention a fresh install also has the issue in your case. In my situations only upgraded instances had the issue, fresh install of 2.4.5 did not. But odd even a factory reset after upgrade and the issue remained in default config. I had to do full iso re-install to clear the problem.

Cool_Corona · Apr 21, 2020, 7:35 PM

@carl2187 said in Hyper-V VM constant 100% CPU Load in 2.4.5:

All my issues actually went away by doing clean install from ISO. Factory reset wasn't enough to eliminate the issue on 2.4.5 after upgrade. I clean installed 2.4.5 from iso, imported config, now i don't see any 100% spikes on my 4-core hyper-v gen2 zfs pfsense vms.

I wrote up all my findings on the issue here, I think its the same problem this thread is discussing:
https://forum.netgate.com/topic/149595/2-4-5-a-20200110-1421-and-earlier-high-cpu-usage-from-pfctl/25

Although I see you mention a fresh install also has the issue in your case. In my situations only upgraded instances had the issue, fresh install of 2.4.5 did not. But odd even a factory reset after upgrade and the issue remained in default config. I had to do full iso re-install to clear the problem.

I bet its a BSD problem since the factory reset didnt do the job...

UnknownEleven · Apr 21, 2020, 7:45 PM

@carl2187
It's worth mentioning that my installation is using generation 1 of VMs. I'm gonna try installing using generation 2, though I could never get it to boot.

carl2187 · Apr 21, 2020, 7:49 PM

@Cool_Corona I think the issue is in the upgrade logic, not 2.4.5 itself. a clean install from ISO has no issues at all. If there was an upstream BSD issue, new installs would suffer as well.

@UnknownEleven just make sure "Secure Boot" is disabled on the Gen2 vm to get the pfsense iso to boot.

Cool_Corona · Apr 21, 2020, 7:54 PM

I disabled secure boot in ESXi and still no dice....

UnknownEleven · Apr 21, 2020, 7:58 PM

@carl2187 Thanks for the tip. I'll try and let you know how it goes.

carl2187 · Apr 21, 2020, 8:00 PM

@Cool_Corona try Hyper-V or Linux KVM, I know pfsense works in those right now. I don't use vmware anywhere myself but you can attempt docs, looks like it should work fine, i used pfsense on it back in the esxi 5.x days: https://docs.netgate.com/pfsense/en/latest/virtualization/virtualizing-pfsense-with-vmware-vsphere-esxi.html