I've upgraded my Proxmox server from v8 to v9 a few days ago.
It rebooted several times since the upgrade and it looks like it is caused by some RAM exhaust problem.
Total RAM is 256GB. All my CT+VM are using roughly 64GB of RAM and their proxmox graphs do not show any increase use by them.
First, I suspected ZFS ARC, but it is respecting the 64GB limit.
My munin graph shows that cache memory is increasing in a few hours, then something is eating RAM, cache decreases, ZFS ARC decreases too... then panic.

It rebooted several times since the upgrade and it looks like it is caused by some RAM exhaust problem.
Total RAM is 256GB. All my CT+VM are using roughly 64GB of RAM and their proxmox graphs do not show any increase use by them.
First, I suspected ZFS ARC, but it is respecting the 64GB limit.
My munin graph shows that cache memory is increasing in a few hours, then something is eating RAM, cache decreases, ZFS ARC decreases too... then panic.
