Last Modified: Oct 16, 2023
Affected Product(s):
BIG-IP All
Known Affected Versions:
12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1
Fixed In:
14.1.0, 13.1.3.5, 12.1.5.3
Opened: May 17, 2018 Severity: 3-Major
After a period of time, Inet port exhaustion error messages begin to be reported, and traffic starts to fail: crit tmm1[17985]: 01010201:2: Inet port exhaustion on <ip_address> to <ip_address>. CPU cores are unevenly loaded by the tmm process. Typically odd cores will have a more loaded tmm thread.
The system reports Inet port exhaustion error messages, and traffic starts to fail. Where CPU use by the tmm process is very uneven as the busiest cores reach near maximum connections will be offloaded at an early stage to less used tmm threads on quieter cores. This means the uneven CPU usually has a minimal impact itself.
BIG-IP system uses unic, sock or virtIO drivers
None.
Disaggregation algorithm has been improved to avoid unequal distribution.