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Assert Warning: Attempt to wake a non-existent thread.

Troubleshooting


Problem

Message in online log Assert Warning: Attempt to wake a non-existent thread. This problem can be seen in many environments, usually with Enterprise Replication active. The issue will generate an Assertion Warning message similar to the following: 14:22:29 IBM Informix Dynamic Server Version 11.70.UC7W1GE Software Serial Number AAA#B000000 14:22:29 Assert Warning: Attempt to wake a non-existent thread. 14:22:29 Who: Session(39, informix, 0, 0xae919298) Thread(83, CDRGeval1, ae8eea10, 8) File: mt.c Line: 11063 14:22:29 Action: Please notify IBM Informix Technical Support. 14:22:29 Raw hex dump of stack located in /opt/informix/tmp/af.43b9f95.rawstk 14:22:29 Stack for thread: 83 CDRGeval1 base: 0xb09c9000 len: 69632 pc: 0x08b4711e tos: 0xb09d9160 state: running vp: 8

Symptom

An Assertion Warning is generated, the instance will usually stay online after the warning has been noted.

Cause

The actual cause is still being determined. One suggestion is to get to the latest GA release of Informix as th

Resolving The Problem

Upgrading to 11.70.xC8 seems to reduce the occurrence of the problem.

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Document Information

Modified date:
03 June 2021

UID

swg21641960

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