Werk #19879: nvidia_smi: don't crash when no GPU is found

Component

Checks & agents

Title

nvidia_smi: don't crash when no GPU is found

Date

May 13, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.6.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p4	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p30	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

When the agent host had nvidia-smi installed but no GPU was currently visible to the driver (the Linux plugin then forwarded No devices were found), or when nvidia-smi.exe was not installed at the path the Windows agent plugin searches (the plugin forwarded a not found in: error block), the agent emitted a plain-text message instead of the expected XML. The nvidia_smi section then crashed with ParseError: syntax error: line 1, column 0 and produced a crash report on every check cycle.

The check now treats a non-XML body as an empty section: no nvidia_smi services are reported for the affected host, and no crash report is generated.

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