BF assertion failure on mandrill in walsender, v13

From: Thomas Munro <thomas(dot)munro(at)gmail(dot)com>
To: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Cc: Noah Misch <noah(at)leadboat(dot)com>
Subject: BF assertion failure on mandrill in walsender, v13
Date: 2021-06-09 22:47:20
Message-ID: CA+hUKG+qdF6QE6rcj_Zj5h2qVARM--+92sqdmr-0DUSM_0Qu_g@mail.gmail.com
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Hi,

Not sure if there is much chance of debugging this one-off failure in
without a backtrace (long shot: any chance there's still a core
file?), but for the record: mandrill choked on a null pointer passed
to GetMemoryChunkContext() inside a walsender running logical
replication. Possibly via pfree(NULL), but there are other paths.
That's an animal running with force_parallel_mode and
RANDOMIZE_ALLOCATED_MEMORY, on AIX with IBM compiler in 32 bit mode,
so unusual in several ways.

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=mandrill&dt=2021-06-06%2015:37:23

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