is <command>createlang</command> failing with unusual errors.
For example, running as the owner of the PostgreSQL installation:
<screen>
-bash-3.00$ createlang plpgsql template1
createlang: language installation failed: ERROR: could not load library "/opt/dbs/pgsql748/lib/plpgsql.so": A memory address is not in the address space for the process.
-bash-3.00$ createlang plperl template1
createlang: language installation failed: ERROR: could not load library "/opt/dbs/pgsql748/lib/plperl.so": A memory address is not in the address space for the process.
</screen>
Running as a non-owner in the group posessing the PostgreSQL
installation:
<screen>
-bash-3.00$ createlang plpgsql template1
createlang: language installation failed: ERROR: could not load library "/opt/dbs/pgsql748/lib/plpgsql.so": Bad address
-bash-3.00$ createlang plperl template1
createlang: language installation failed: ERROR: could not load library "/opt/dbs/pgsql748/lib/plperl.so": Bad address
</screen>
Another example is out of memory errors in the PostgreSQL server
logs, with every memory allocation near or greater than 256 MB