Bug ID 666112: TMM 'DoS Layer 7' memory leak during config load

Last Modified: May 14, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP ASM(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, 12.1.2 HF1, 12.1.2 HF2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:
13.1.0, 12.1.3.6

Opened: May 23, 2017
Severity: 3-Major
Related AskF5 Article:
K53708490

Symptoms

Degraded performance; potential eventual out-of-memory. Note: The 'DoS Layer 7' allocations increase by 'TMM count * #domains' after each config load. Tip: You can watch the watch the 'DoS Layer 7' allocations increase on a shell on the BIG-IP system using the following command: # watch -n1 -- 'tmctl -s name,allocated,max_allocated,cur_allocs memory_usage_stat | grep -E "^name|---|^DoS Layer 7 "'

Impact

Degraded performance; potential eventual out-of-memory.

Conditions

-- Provision ASM. -- Make sure the built-in 'security dos bot-signature' are added to the config. -- Load the config from another shell using the following command: tmsh load sys config

Workaround

None.

Fix Information

Fix memory leak after each config load.

Behavior Change