PG Bug reporting form <noreply@postgresql.org> writes:
> Process crash inside docker containter 2-3 times per hour without any
> additional information
> ./postgresql-Thu-00.log:2021-01-21 00:11:34 UTC [1]: user=,db=,app=,client=
> LOG: server process (PID 20071) was terminated by signal 11: Segmentation
> fault
Hm, please see if you can get a stack trace:
https://wiki.postgresql.org/wiki/Generating_a_stack_trace_of_a_PostgreSQL_backend
Also try to figure out what query(s) are causing the crash.
(It's unlikely that the postmaster log doesn't provide more
information than you've shared here.)
> I can share postgresql.conf, process crash core dumps for analysis
Core dumps are unlikely to help anyone else; they are too
machine-specific. Not to mention that they might contain
sensitive data. You'll need to examine them yourself.
regards, tom lane