Werk #11303: mem.linux: false CRIT status when VmallocChunk is set to 0 kB

Component

Checks & agents

Title

mem.linux: false CRIT status when VmallocChunk is set to 0 kB

Date

Aug 13, 2020

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.0.0i1	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
1.6.0p16	Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

On Linux kernel 5.3 and newer versions, VmallocChunk is not set (i.e. set to 0 kB). This causes the plugin to report a false CRIT status when evaluating the status of 'Largest Free VMalloc Chunk'. We have amended the plugin to ignore Vmalloc Chunk if it is set to 0 kB.

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