Re: BUG #16205: background worker "logical replication worker" (PID 25218) was terminated by signal 11: Segmentation

Here are the logs and our configuration.
Actually we are facing problem when replicating partition table from 11.6 to 12.1, but if there is no partition table the replication works so well.
As FYI, our server spec is 16 core and 64GB. And we are using this ubuntu

LSB Version: core-9.20160110ubuntu0.2-amd64:core-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-amd64:security-9.20160110ubuntu0.2-noarch
Distributor ID: Ubuntu
Description: Ubuntu 16.04.6 LTS
Release: 16.04
Codename: xenial

Can you help us to find out the solution and configuration?
Thanks for your help

________________________________
From: Michael Paquier
Sent: Tuesday, January 14, 2020 6:58 PM
To: pendekar(dot)senja(at)outlook(dot)com; pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: Re: BUG #16205: background worker "logical replication worker" (PID 25218) was terminated by signal 11: Segmentation

On Wed, Jan 15, 2020 at 02:00:48AM +0000, PG Bug reporting form wrote:
> I got error when replicate with native logical method from PostgreSQL 11.6
> to PostgreSQL 12.1, I will connecting table partition to table partition
> from Version 11.6 to Version 12.1, but after all tables already replicated
> around more than 2 hours, server can't access and recovery mode. please help
> to advice, below log.

Could you provide a backtrace? Looking at the recent commit history,
we had one fix which could be relevant to you after 12.1 was released:
https://www.postgresql.org/message-id//16129-a0c0f48e71741e5f(at)postgresql(dot)org

And here is the commit:
https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=a2aa224e

The problem may be different though, so a backtrace would be good to
check anyway.
--
Michael