Proxmox 8.4.1 and Nested ESXi "FREE" 8.0.3 keeps purpling

[akballow]

I have been not been successful with getting nested ESXi to remain purple screen free for a full day yet.

I been using proxmox for years and this is the first time i have ever had an issue with ESXi. I have a pretty standard config.

The purple is always related to PCPU no heartbeat. I already tried changing the scihw, cpu flags. Would love some help if someone solved this.

agent: 0
balloon: 0
bios: ovmf
boot: order=ide2;sata0;net0
cores: 16
cpu: host,flags=+aes
efidisk0: local-zfs:vm-195-disk-2,efitype=4m,pre-enrolled-keys=1,size=1M
ide2: none,media=cdrom
memory: 32000
meta: creation-qemu=9.2.0,ctime=1747166715
name: XXX-ESXI-10.10.10.10
net0: vmxnet3=BC:24:11:67:E3:AC,bridge=vmbr0,rate=50,tag=934
numa: 1
ostype: other
sata0: local-zfs:vm-195-disk-0,discard=on,size=100G,ssd=1
sata1: local-zfs:vm-195-disk-1,discard=on,size=1000G,ssd=1
scsihw: pvscsi
smbios1: uuid=4427eadb-032e-414a-972d-a08b1e3c6fc2
sockets: 1
vmgenid: e99ad711-8dcb-419a-84f2-51c5d44fb0e9

 

[l.leahu-vladucu]

Hello akballow! What error do you have exactly? Since you're using VMware ESXi on Proxmox VE, you'll want to take a look at Nested Virtualization.

Either way, using SATA for the disks is the right choice. Using host as the CPU type should work without issues. We can maybe help if you provide us with more information - e.g. exact error code/message or call stack of the crash.

 

[akballow]

Hello akballow! What error do you have exactly? Since you're using VMware ESXi on Proxmox VE, you'll want to take a look at Nested Virtualization.

Either way, using SATA for the disks is the right choice. Using host as the CPU type should work without issues. We can maybe help if you provide us with more information - e.g. exact error code/message or call stack of the crash.

Thanks for replying. The reason is slightly different every time but always about PCPU. This happens after a few hours when everything works fine VMs and networking.

I want to point out i tried multiple Physical hosts to rule out actual CPU issues.

 

[akballow]

I think i might have figured it out. pending confirmation.

Every time the VM backups to PBS it crashes. I put ignore disk on both the disks and it has since not crashed. I will wait a full day then run a manual backup and if it crashes that be the problem.

Strangely this was never a problem before so i wonder if it was introduced by VMware for this "free" esxi.

 

[akballow]

So i have verified that the backup is what causes the ESXI host to crash.

This is a first as i always run backups with PBS in the past.

Is anyone else who has ESXi can verify that 8.0.3 crashes when the os disk is backed up?