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	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.4.0p18	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

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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