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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Thomas Munro <thomas.munro@gmail.com>
Cc: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Cc: Justin Pryzby <pryzby@telsasoft.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: pg15b1: FailedAssertion("val > base", File: "...src/include/utils/relptr.h", Line: 67, PID: 30485)
Date: Tue, 31 May 2022 17:09:27 -0400
Message-ID: <331489.1654031367@sss.pgh.pa.us> (raw)
In-Reply-To: <CA+TgmoaWZ-hs1vQ8C88ZE57oXpsWj5oxYZYR9y7c2H+uoikz_A@mail.gmail.com>
References: <20220519193839.GT19626@telsasoft.com>
	<208993.1652994963@sss.pgh.pa.us>
	<20220520.120014.1649415417205853644.horikyota.ntt@gmail.com>
	<CA+Tgmob26sUtT8h2tnqttx1WRfi56FrRELs77ANCXvmVMv3w3g@mail.gmail.com>
	<321315.1654027805@sss.pgh.pa.us>
	<CA+hUKG+zSZ8ZkrS0GRhvaRQBMbfKcBJi_XdtA9nDKt4ODXxR1w@mail.gmail.com>
	<CA+TgmoaWZ-hs1vQ8C88ZE57oXpsWj5oxYZYR9y7c2H+uoikz_A@mail.gmail.com>

Robert Haas <robertmhaas@gmail.com> writes:
> Could it use something other than its own address as the base address?

Hmm, maybe we could make something of that idea ...

> One way to do this would be to put it at the *end* of the
> "Preallocated DSM" space, rather than the beginning.

... but that way doesn't sound good.  Doesn't it just move the
problem to the first object allocated inside the FPM?

			regards, tom lane





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