Re: LDAP authenticated session terminated by signal 11: Segmentation fault, PostgresSQL server terminates other active server processes

Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at> writes:
> Mike Yeap wrote:
>> I have encountered a problem related to LDAP authenticated session with Postgres foreign data wrapper (postgres_fdw).

> Are the "postgres" executable and libpq linked with the same version of OpenLDAP?

And which version is that? (And which version of Postgres?)

Digging around in our git history, I came across this:

Author: Noah Misch <noah(at)leadboat(dot)com>
Branch: master Release: REL9_5_BR [d7cdf6ee3] 2014-07-22 11:01:03 -0400

Diagnose incompatible OpenLDAP versions during build and test.

With OpenLDAP versions 2.4.24 through 2.4.31, inclusive, PostgreSQL
backends can crash at exit. Raise a warning during "configure" based on
the compile-time OpenLDAP version number, and test the crash scenario in
the dblink test suite. Back-patch to 9.0 (all supported versions).

which sounds a fair bit like what you are describing.

regards, tom lane