Bug ID 1043933: Interactive tmsh does not handle window resizing properly.

Last Modified: Apr 29, 2023

Affected Product(s):
BIG-IP TMOS(all modules)

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 16.0.0,, 16.0.1,,, 16.1.0, 16.1.1, 16.1.2,,, 16.1.3,,,,, 17.0.0,,

Opened: Aug 31, 2021

Severity: 3-Major


When using tmsh interactively in a terminal window, resizing the window can cause problems.


- If text has been typed, resizing the window will clear the text. - Certain commands such as 'load sys ucs' will be killed prematurely if the window is resized before they finish running. - Resizing the window while using imish or typing 'term len 0' will cause imish to be aborted.


1. Run tmsh from a terminal window (or use tmsh as default shell). 2. - Type some text, then resize the window. or - Run a command, and resize the window before it finishes. or - Use a command that adjusts terminal size.


Limit window resizing to sitting at an empty tmsh prompt.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips