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Message-ID: <6f427358-a115-47d9-9e31-b28342245215@iki.fi>
Date: Mon, 16 Feb 2026 19:32:18 +0200
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Subject: Re: Better shared data structure management and resizable shared data
 structures
To: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>,
 Andres Freund <andres@anarazel.de>, chaturvedipalak1911@gmail.com
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 <5a37c2e3-619d-4816-84d7-0b27e3e6797f@iki.fi>
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From: Heikki Linnakangas <hlinnaka@iki.fi>
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On 16/02/2026 16:52, Ashutosh Bapat wrote:
> 2. to use madvise() the address needs to be backed by a file, so
> memfd_create is a must.

It seems to work fine for anonymous mmapped memory here. See attached 
test program.

- Heikki

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