Bug ID 1989161: Serial Console Occasionally Locks Up Immediately After Logout

Last Modified: Jul 21, 2026

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

Fixed In:
F5OS v2.0.0

Opened: Jul 18, 2025

Severity: 3-Major

Symptoms

The serial console locks up and does not drop the login prompt again intermittently.

Impact

Cannot log in to the serial console

Conditions

Log out of the blade serial console.

Workaround

Restart the serial console service $ systemctl restart serial-getty@ttyS0.service

Fix Information

Detect the problem and auto-restart the console service.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips