Bug ID 2277837: TMM Crashes On Standby Device Due To Ram Cache Issue

Last Modified: Jun 04, 2026

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

Known Affected Versions:
16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5, 16.1.5.1, 16.1.5.2, 16.1.6, 16.1.6.1, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1, 17.1.3.2, 17.5.1.3, 17.5.1.4, 17.5.1.5, 17.5.1.6, 21.0.0.1

Opened: Apr 15, 2026

Severity: 3-Major

Symptoms

High throughput with large and small documents in RAM cache is involved; TMM crashes in rare cases

Impact

TMM is out of service while rebooting

Conditions

Under congestion, events might not be in order on the standby, leading to a crash

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips