Are clients shared memory or networked?
Art
Art S. Kagel, President and Principal Consultant
ASK Database Management
Disclaimer: Please keep in mind that my own opinions are my own opinions and do not reflect on the IIUG, nor any other organization with which I am associated either explicitly, implicitly, or by inference. Neither do those opinions reflect those of other individuals affiliated with any entity with which I am affiliated nor those of the entities themselves.
------Original Message------
We are having more and more issues around shmem block header corruption with IDS 12.10.FC12W1. Sometimes the bad pool gets repaired, sometimes not. If not, the engine will eventually stop accepting new connections, so we bounce the hard way of course.
Anyone else experiencing similar? I've created more PMRs (TS) in the last 6 months than in the last few years once we moved to IDS 12.10. Platform is AIX 7.1.
Below is a snippet:
01/23/20 07:02:58 Memory block header corruption detected in mt_shm_malloc_segid 9
01/23/20 07:03:02 Found during mt_shm_free 1, error seen 1 times since last print to the log
01/23/20 07:03:02 Pool '8350181' (0x7000002aa2b6040)
01/23/20 07:03:02 Bad block header 0x7000002f106b860
01/23/20 07:03:02 Assert Failed: Memory block header corruption detected in mt_shm_free 1
01/23/20 07:03:02 IBM Informix Dynamic Server Version 12.10.FC12W1
01/23/20 07:03:02 Who: Session(8350181, <user redacted> 62586972, 70000023904f108)
Thread(19565549, sqlexec, 7000001a2226b58, 93)
File: mtshpool.c Line: 2763
01/23/20 07:03:02 Results: Unable to repair pool
Thanks!
Mark Scranton
mark@markscranton.com
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Mark Scranton
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#Informix