Last Modified: Apr 10, 2019
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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, 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 12.1.4, 188.8.131.52
Opened: Dec 12, 2017
Related AskF5 Article: K24479486
Cave Creek Hardware-accelerated Secure Sockets Layer (SSL) traffic may encounter errors and performance problems. The BIG-IP system may experience SSL connection failures or reduced performance. Following logs show an example of errors seen: /var/log/ltm -- crit tmm3: 01010025:2: Device error: crypto codec qa-crypto3-3 queue is stuck. -- warning tmm3: 01260009:4: Connection error: ssl_basic_rx:1015: decrypt request error (20)
The BIG-IP system may experience SSL connection failures or reduced performance.
This issue occurs when all of the following conditions are met: -- Your BIG-IP system uses Cave Creek SSL hardware acceleration. -- You are experiencing a high SSL traffic load.
To work around this issue, you can increase the crypto.queue.timeout database key. To do so, perform the following procedure: Impact of workaround: Performing the following procedure should not have a negative impact on your system. This procedure will mitigate future occurrences. A reboot of the BIG-IP system is required to clear a currently occurring condition. 1. Log in to the Traffic Management Shell (tmsh) as an administrative user. 2. Run the following command: modify /sys db crypto.queue.timeout value 300 3. Reboot the BIG-IP system.