Hi all, I have encountered a problem related to LDAP authenticated session with Postgres foreign data wrapper (postgres_fdw).
The server crashed with following errors and other active server processes are terminated as well:
2019-02-20 14:53:30.496 SGT [PID=1353 application="" user_name= database= host(port)=] LOG: server process (PID 26306) was terminated by signal 11: Segmentation fault
2019-02-20 14:53:30.496 SGT [PID=1353 application="" user_name= database= host(port)=] LOG: terminating any other active server processes
I can reproduce it in a test server with many other sessions connected:
1. login using non-LDAP-authenticated user, query local & foreign tables - OK
2. login using LDAP-authenticated user, query local table - OK
3. login using LDAP-authenticated user, query foreign table - ERROR, server crashes with signal 11: Segmentation fault error when I quit the psql session
It seems like the problem only when the LDAP-authenticated session (which queried foreign table) is terminated. In dmesg log, I can see following:
[16385512.182231] traps: postmaster[26306] general protection ip:7f1e758b638c sp:7ffef7ed8858 error:0 in
libc-2.17.so[7f1e75836000+1b6000]
Has anyone encountered similar issue?
######################
PostgreSQL version: 10.6
Platform: CentOS Linux
Thank you.