debug a lockup

PostgreSQL appears locked up. pgbench run that should have completed in a few seconds has been running  14 hours. psql
invocationlocks up. No CPU usage showing in top. 

I personally suspect infra issues. (k8s pod, Pure block storage) But I'm getting pushback pointing the finger at PG.
It's18.1, and pgbench is the only client FWIW. 

Any way to introspect the current non-debug build to get a clue what's going on in there?

--
Scott Ribe
scott_ribe@elevated-dev.com
https://www.linkedin.com/in/scottribe/