Bug ID 539344: SPDY child flow aborted while stalled leaves freed SPDY stream in SPDY stalled list

Last Modified: Feb 13, 2019

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6

Opened: Aug 12, 2015
Severity: 2-Critical
Related AskF5 Article:
K57042207

Symptoms

The Traffic Management Microkernel (TMM) process may produce a core file and restart when processing SPDY traffic. As a result of this issue, you may encounter one or more of the following symptoms: - The BIG-IP system fails over to the standby system if configured as a high-availability pair. - The BIG-IP system generates a TMM core file to the /shared/core directory.

Impact

Traffic disrupted while tmm restarts.

Conditions

This issue occurs when all of the following conditions are met: - You associate a virtual server with a SPDY profile. - The virtual server processes a SPDY client connection with more than two concurrent streams. - The SPDY client connection stalls and is subsequently aborted.

Workaround

This issue has no workaround at this time.

Fix Information

TMM process no longer produces a core file and restart when processing SPDY traffic issue that occurred when a virtual server processed a SPDY client connection with more than two concurrent streams, and the SPDY client connection stalled and was subsequently aborted.

Behavior Change