Re: [CLOBBER_CACHE]Server crashed with segfault 11 while executing clusterdb

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: Neha Sharma <neha(dot)sharma(at)enterprisedb(dot)com>
Cc: Amul Sul <sulamul(at)gmail(dot)com>, Amit Langote <amitlangote09(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: [CLOBBER_CACHE]Server crashed with segfault 11 while executing clusterdb
Date: 2021-03-23 10:09:03
Message-ID: YFm+P/R4j/60qb/V@paquier.xyz
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On Tue, Mar 23, 2021 at 04:12:01PM +0900, Michael Paquier wrote:
> It takes some time to initialize a cluster under CLOBBER_CACHE_ALWAYS,
> but the test is quick enough to reproduce. It would be good to bisect
> the origin point here as a first step.

One bisect later, the winner is:
commit: 3d351d916b20534f973eda760cde17d96545d4c4
author: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
date: Sun, 30 Aug 2020 12:21:51 -0400
Redefine pg_class.reltuples to be -1 before the first VACUUM or ANALYZE.

I am too tired to poke at that today, so I'll try tomorrow. Tom may
beat me at that though.
--
Michael

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