Segmentation Fault Issue in PostgreSQL 13.4

Hello Folks,

I’m encountering a segmentation fault issue in PostgreSQL 13.4 when executing a specific function (cause_segfault()). The server process terminates with a signal 11 (Segmentation fault), but the database service continues running without a full shutdown.

Details:

      •     PostgreSQL Version: 13.4
      •     Environment: RHEL 8
      •     Steps to Reproduce:
      1.    Create function: CREATE FUNCTION cause_segfault() RETURNS void AS 'cause_segfault', 'cause_segfault' LANGUAGE C STRICT;
      2.    Execute function: SELECT cause_segfault();

Observations:

      •     Logs indicate the segmentation fault (LOG: server process (PID XXX) was terminated by signal 11: Segmentation fault).

Request for Assistance:

      •     Has anyone encountered similar issues with PostgreSQL 13.4?
      •     Are there known bugs or fixes related to segmentation faults in recent PostgreSQL versions?
      •     Any advice on troubleshooting or resolving this issue would be greatly appreciated.

Thank you for your assistance.

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