From: Tom Lane <tgl@sss.pgh.pa.us>
To: Justin Pryzby <pryzby@telsasoft.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: Matthias van de Meent <boekewurm+postgres@gmail.com>
Cc: pgsql-hackers@postgresql.org
Subject: Re: v16dev: TRAP: failed Assert("size > SizeOfXLogRecord"), File: "xlog.c", Line: 1055, PID: 13564
Date: Mon, 17 Apr 2023 18:09:44 -0400
Message-ID: <2522099.1681769384@sss.pgh.pa.us> (raw)
In-Reply-To: <ZD3BaJGa0jDNLXGI@telsasoft.com>
References: <ZD1daibg4RF50IOj@telsasoft.com>
<CAEze2Wg+Pbec3jaaUSF8E6Piy=bq=gXkFCFyaYwFDYTDjCMSvg@mail.gmail.com>
<2444561.1681748021@sss.pgh.pa.us>
<2454846.1681753830@sss.pgh.pa.us>
<ZD3BaJGa0jDNLXGI@telsasoft.com>
Justin Pryzby <pryzby@telsasoft.com> writes:
> On Mon, Apr 17, 2023 at 01:50:30PM -0400, Tom Lane wrote:
>> Bingo: bisecting shows the failure started at
> Just curious: what "test" did you use to bisect with ?
The test case I used looked like
start postmaster with -c wal_level=minimal -c max_wal_senders=0
make installcheck-parallel
psql -d regression -c "do 'begin for i in 1..1000 loop execute ''create table lots''||i||'' as select * from onek''; end loop; end';"
pg_dump -Fc -Z0 regression >~/regression.dump
createdb r2
pg_restore -d r2 --single-transaction --no-tablespace ~/regression.dump
Dumping the regression database as-is didn't reproduce it for me,
but after I added a bunch more tables it did reproduce.
(I added the -Z0 bit after some of the bisection test points hit the
interval where somebody had broken pg_dump's compression features.
It didn't seem relevant to the problem so I just disabled that.)
regards, tom lane
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To: pgsql-hackers@postgresql.org
Cc: tgl@sss.pgh.pa.us, pryzby@telsasoft.com, andres@anarazel.de, boekewurm+postgres@gmail.com
Subject: Re: v16dev: TRAP: failed Assert("size > SizeOfXLogRecord"), File: "xlog.c", Line: 1055, PID: 13564
In-Reply-To: <2522099.1681769384@sss.pgh.pa.us>
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