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Werk #20139: Crash reports view with broken traceback

Component User interface
Title Crash reports view with broken traceback
Date Jul 29, 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
2.5.0p11
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p36
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Previously, opening Monitor > System > Crash reports could fail entirely with:

Internal error: too many values to unpack (expected 4)

This happened when a single stored crash report contained a traceback Checkmk could not interpret, for example one recorded as plain text rather than as individual code locations. One such report made the whole list inaccessible.

The list now renders. Reports with an uninterpretable traceback are still shown; only their Crash source column can no longer tell whether an extension was involved. No currently supported Checkmk version writes reports like this, so this is a safeguard for reports left behind by other producers.

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