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Informix Error -32165: Error attaching to session shared memory.

Cause and resolution

Error attaching to session shared memory.

This message indicates an internal error. Check the operating-system error message for further information.

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-32165 fires when the server can't attach to existing session shared memory — per the official guidance, reported as an internal error.

  1. An operating-system-level failure attaching to the shared-memory segment, per the official guidance — check the OS error message for detail.
Solutions / Resolution
  1. Check the operating-system error message for the specific failure, per the official guidance.
Examples
N/A

No specific triggering statement is documented beyond a failed shared-memory attach.

Diagnostic Checks
  1. Check the OS-level error accompanying this message.
Related Errors / Related Topics
  • -32164 — "Error creating session shared memory." A related session shared-memory error, on creating rather than attaching to shared memory.

The server couldn't attach to session shared memory — check the accompanying OS error message.