Werk #18596: kernel_performance: Don't record negative number of context switches on reboot

Component

Checks & agents

Title

kernel_performance: Don't record negative number of context switches on reboot

Date

Dec 8, 2025

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.5.0b1 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)
2.4.0p18 Not yet released	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

After a system reboot, the "Kernel Performance" service could record a negative number of context switches. This was caused by a counter reset during the reboot process.

With this update, such negative results are now skipped and not recorded.

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