Additional info: in the meantime, I've tried adding require_auth=none and gssencmode=disable connection string parameters (separately, not together at once) for the repmgr/client connections that are "trusted" through pg_hba.conf, but the problem persisted.
The following bug has been logged on the website:
Bug reference: 18315
Logged by: Ivan Kalafatić
Email address: ikalafat@gmail.com
PostgreSQL version: 16.1
Operating system: Debian 12
Description:
Hi,
I am intermittently getting following errors (taken from var/log/syslog), on
pg_basebackup, repmgrd and psql (so far)
repmgr[1147164] general protection fault ip:7fb9950981b5 sp:7ffecf4418f8
error:0 in libkrb5.so.3.3[7fb99506a000+5f000]
also this:
pg_basebackup[4191295] general protection fault ip:7f344e9771b5
sp:7ffe8c625c28 error:0 in libkrb5.so.3.3[7f344e949000+5f000]
and this
psql[4045720] general protection fault ip:7f89130931b5 sp:7fffd40a0268
error:0 in libkrb5.so.3.3[7f8913065000+5f000]
Looks like that the error is related to GSSAPI/kerberos auth? I have tried
replacing "host" type within pg_hba.conf to "hostnogssenc", but problem
persists.
Running Debian 12 with all updates, repmgr, timescaledb extensions (fresh
install). PostgreSQL 16.1 (Debian 16.1-1.pgdg120+1)
Looks like the server itself is not affected (isn't crashing etc).
Is there anything that I could do to disable GSSAPI/kerberos and/or
circumvent this issue? Also, how can I provide more info for this issue to
be resolved.
Thanks.