Bug ID 1590173: K3s server crashes and restarts due to high CPU activity

Last Modified: Jun 26, 2025

Affected Product(s):
F5OS F5OS-A(all modules)

Known Affected Versions:
F5OS-A 1.5.1, F5OS-A 1.5.2, F5OS-A 1.5.3

Fixed In:
F5OS-A 1.8.0

Opened: May 29, 2024

Severity: 3-Major

Symptoms

K3s crashes and restarts due to high CPU load on r2000 platform.

Impact

Tenants will restart when the K3s server restarts.

Conditions

On the r2000 platform, both F5OS and Tenants utilize the same CPUs. However, if the Tenants use a higher percentage of the CPU share, it impacts the K3s server.

Workaround

None

Fix Information

It is not advisable to use the r2000 platform with a CPU usage of 90% or higher.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips