Bug ID 619663: Terminating of HTTP2 connection may cause a TMM crash

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2

Fixed In:
13.0.0, 12.1.2 HF1

Opened: Sep 29, 2016
Severity: 2-Critical
Related AskF5 Article:


TMM crashes when an HTTP2 connection is being terminating on client and server sides concurrently.


Traffic disrupted while tmm restarts.


-- HTTP2 profile is configured and assigned to a virtual server. -- A client SSL profile is also used on the same virtual server. -- Client interrupting a connection and server terminating a connection at the same time.



Fix Information

A fix stops HTTP2 from further processing when a connection is terminating preventing TMM crash for this reason.

Behavior Change