Crash: invalid DSA memory alloc request

Hello,

I'm running a couple of large tests, and in this particular test I have
a few million tables more.

At some point it fails, and I gathered the following trace:

2024-12-12 22:22:55.307 CET [1496210] ERROR: invalid DSA memory alloc
request size 1073741824
2024-12-12 22:22:55.307 CET [1496210] BACKTRACE:
        postgres: ads tabletest [local] CREATE TABLE(+0x15e570)
[0x6309c379c570]
        postgres: ads tabletest [local] CREATE
TABLE(dshash_find_or_insert+0x1a4) [0x6309c39882d4]
        postgres: ads tabletest [local] CREATE
TABLE(pgstat_get_entry_ref+0x440) [0x6309c3b0a530]
        postgres: ads tabletest [local] CREATE
TABLE(pgstat_prep_pending_entry+0x3a) [0x6309c3b0676a]
        postgres: ads tabletest [local] CREATE
TABLE(pgstat_assoc_relation+0x32) [0x6309c3b086c2]
        postgres: ads tabletest [local] CREATE
TABLE(StartReadBuffer+0x3c0) [0x6309c3ab9870]
        postgres: ads tabletest [local] CREATE
TABLE(ReadBufferExtended+0xa1) [0x6309c3abb271]
        postgres: ads tabletest [local] CREATE TABLE(+0x2c6caa)
[0x6309c3904caa]
        postgres: ads tabletest [local] CREATE
TABLE(AlterSequence+0xc0) [0x6309c3905860]
        postgres: ads tabletest [local] CREATE TABLE(+0x4b6336)
[0x6309c3af4336]
        postgres: ads tabletest [local] CREATE
TABLE(standard_ProcessUtility+0x259) [0x6309c3af33f9]
        postgres: ads tabletest [local] CREATE TABLE(+0x4b6e64)
[0x6309c3af4e64]
        postgres: ads tabletest [local] CREATE
TABLE(standard_ProcessUtility+0x259) [0x6309c3af33f9]
        postgres: ads tabletest [local] CREATE TABLE(+0x4b3d2f)
[0x6309c3af1d2f]
        postgres: ads tabletest [local] CREATE TABLE(+0x4b3e4b)
[0x6309c3af1e4b]
        postgres: ads tabletest [local] CREATE TABLE(PortalRun+0x16f)
[0x6309c3af226f]
        postgres: ads tabletest [local] CREATE TABLE(+0x4b06cc)
[0x6309c3aee6cc]
        postgres: ads tabletest [local] CREATE
TABLE(PostgresMain+0xf67) [0x6309c3aefa87]
        postgres: ads tabletest [local] CREATE TABLE(+0x4accc5)
[0x6309c3aeacc5]
        postgres: ads tabletest [local] CREATE
TABLE(postmaster_child_launch+0x8f) [0x6309c3a5b95f]
        postgres: ads tabletest [local] CREATE TABLE(+0x421479)
[0x6309c3a5f479]
        postgres: ads tabletest [local] CREATE
TABLE(PostmasterMain+0xd71) [0x6309c3a61251]
        postgres: ads tabletest [local] CREATE TABLE(main+0x207)
[0x6309c379efc7]
        /lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x710c33a2a1ca]
        /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x8b)
[0x710c33a2a28b]
        postgres: ads tabletest [local] CREATE TABLE(_start+0x25)
[0x6309c379f595]
2024-12-12 22:22:55.307 CET [1496210] STATEMENT:  CREATE TABLE IF NOT
EXISTS test_16718629 (id SERIAL PRIMARY KEY, d VARCHAR(200), e
VARCHAR(200), f VARCHAR(200), i INTEGER, j INTEGER);

PostgreSQL Version is 17.2, compiled with debug symbols.

tabletest=# select version();
version
--------------------------------------------------------------------------------------------------
 PostgreSQL 17.2 on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu
13.2.0-23ubuntu4) 13.2.0, 64-bit
(1 row)

I'm not able to reproduce this for every DDL statement, but grouping
together about 50 of them it fails at some point.

Regards,

--
Andreas 'ads' Scherbaum
German PostgreSQL User Group
European PostgreSQL User Group - Board of Directors
Volunteer Regional Contact, Germany - PostgreSQL Project