[SOLVED] Server reboots since Proxmox v9 upgrade (RAM exhaust problem ?)

cquest

Renowned Member
Feb 21, 2016
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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.

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I've found what was eating the RAM, had nothing to do with the upgrade... maybe the behavior is different or available RAM lower which is causing the reboot.

Sorry for this false alarm