Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.4.1, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.6.0, 11.6.1, 11.6.2, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2
Fixed In:
12.1.0, 12.0.0 HF3, 11.6.3, 11.5.5
Opened: Aug 26, 2015 Severity: 3-Major Related Article:
K01162427
tmm might loop and get killed by sod when the system tries to process an invalid-message-length MPI message. You might notice the following in /var/log/ltm prior to the core: notice MPI stream: connection to node nodedadress expired for reason: Internal error (bad magic) (mpi_proxy.c:664)
tmm might loop, using 100% of CPU, and eventually get killed by sod.
This is an internal condition related to TMMs passing messages between each other. The cause of the invalid internal message is unknown.
None.
tmm no longer loops and gets killed by sod when the system tries to process an invalid MPI message.