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Date: Tue, 20 Jun 2023 10:29:41 -0700
From: Andres Freund <andres@anarazel.de>
To: John Naylor <john.naylor@enterprisedb.com>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>,
	Thomas Munro <thomas.munro@gmail.com>
Subject: Re: remap the .text segment into huge pages at run time
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Precedence: bulk

Hi,

On 2023-06-20 10:23:14 +0700, John Naylor wrote:
> Here's a start at that, trying with postmaster only. Unfortunately, I get
> "MADV_COLLAPSE failed: Invalid argument".

I also see that. But depending on the steps, I also see
  MADV_COLLAPSE failed: Resource temporarily unavailable

I suspect there's some kernel issue. I'll try to ping somebody.

Greetings,

Andres Freund