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help / color / mirror / Atom feedFrom: Antonin Houska <ah@cybertec.at>
To: Alexander Lakhin <exclusion@gmail.com>
Cc: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Amit Kapila <amit.kapila16@gmail.com>
Cc: Hayato Kuroda (Fujitsu) <kuroda.hayato@fujitsu.com>
Cc: Srinath Reddy Sadipiralla <srinath2133@gmail.com>
Cc: Mihail Nikalayeu <mihailnikalayeu@gmail.com>
Cc: Matthias van de Meent <boekewurm+postgres@gmail.com>
Cc: Pg Hackers <pgsql-hackers@lists.postgresql.org>
Cc: Robert Treat <rob@xzilla.net>
Subject: Re: Adding REPACK [concurrently]
Date: Mon, 13 Apr 2026 11:42:03 +0200
Message-ID: <182883.1776073323@localhost> (raw)
In-Reply-To: <18181295-8375-4789-ad32-269d78d6001e@gmail.com>
References: <202604072027.gazfa2zt2l2j@alvherre.pgsql>
<a38fc771-c860-4605-8c44-d16e8aff2534@gmail.com>
<121156.1775818667@localhost>
<18181295-8375-4789-ad32-269d78d6001e@gmail.com>
Alexander Lakhin <exclusion@gmail.com> wrote:
> I've stumbled upon one more issue with this feature:
> CREATE TABLE t (i int PRIMARY KEY);
> REPACK (CONCURRENTLY) t;
>
> fails for me with sanitizers enabled and
> min_dynamic_shared_memory = '1GB'
> in postgresql.conf as below:
> 2026-04-12 13:23:02.000 UTC [2733633] LOG: statement: REPACK (CONCURRENTLY) t;
> repack.c:3373:15: runtime error: load of value 240, which is not a valid value for type '_Bool'
> #0 0x6441f7eba454 in start_repack_decoding_worker .../src/backend/commands/repack.c:3373
> #1 0x6441f7ebdaad in rebuild_relation .../src/backend/commands/repack.c:1010
> #2 0x6441f7ebe9a2 in cluster_rel .../src/backend/commands/repack.c:656
> #3 0x6441f7ebefea in process_single_relation .../src/backend/commands/repack.c:2359
> #4 0x6441f7ebf870 in ExecRepack .../src/backend/commands/repack.c:296
> #5 0x6441f886f20e in standard_ProcessUtility .../src/backend/tcop/utility.c:867
I could not reproduce the problem, but noticed that the field is not
initialized correctly. Please confirm that 0001 should fix that.
While working on it, I noticed that one field can be removed from
DecodingWorkerShared - 0002 removes that.
--
Antonin Houska
Web: https://www.cybertec-postgresql.com
Attachments:
[text/x-diff] 0001-Add-missing-initialization.patch (0B, ../182883.1776073323@localhost/2-0001-Add-missing-initialization.patch)
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To: pgsql-hackers@postgresql.org
Cc: ah@cybertec.at, exclusion@gmail.com, alvherre@alvh.no-ip.org, amit.kapila16@gmail.com, kuroda.hayato@fujitsu.com, srinath2133@gmail.com, mihailnikalayeu@gmail.com, boekewurm+postgres@gmail.com, pgsql-hackers@lists.postgresql.org, rob@xzilla.net
Subject: Re: Adding REPACK [concurrently]
In-Reply-To: <182883.1776073323@localhost>
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