Proxmox VE 5.1: windows boot stalling

[sireangelus]

Hi, i'm experiencing a very strange issue: after a while, every time i try to boot a windows vm, during the windows splashscreen i experience what is pratically a bootloop: all cpus assigned go to 100% and i can see only 1 frame per second(estimation).

It's running over an hp z600, dual l5640 16gb ram 2 500gb 7200 rpm in zfs mirroring + ssd cache -log.

If i reboot the machine, the problem disappears for a while. Suggestions?

 

[Proxmox India]

even i faced this issue,
strangely, i moved the vm to a different host and it worked flawlessly after that

 

[sireangelus]

i can't even boot the windows ISO.