Werk #22966: Proxmox VE: don't crash on an uptime of -1

Component

Checks & agents

Title

Proxmox VE: don't crash on an uptime of -1

Date

Nov 3, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p19 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

If the Proxmox VE API reported an uptime of -1 for a virtual machine or container, the Proxmox VE special agent crashed with a ValidationError for SectionVMInfo. All services of the monitored Proxmox VE hosts then went stale.

The agent now treats a negative uptime as unknown. The Proxmox VE VM Info service of the affected guest then shows no uptime.

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