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From: John Naylor <[email protected]>
To: Andres Freund <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: Thomas Munro <[email protected]>
Subject: Re: remap the .text segment into huge pages at run time
Date: Wed, 21 Jun 2023 09:35:36 +0700
Message-ID: <CAFBsxsHFBBpRu8g4gDoXFYiRvmFZCAY+jGL=uzp3VwuKF4rqvQ@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <CAFBsxsHx9z45MfsAjELFiPv_kcgCcH_P5jNa=WaeGxO7HU3mag@mail.gmail.com>
	<[email protected]>
	<CAFBsxsGmMGKv9eg-ESKCJ2FjqBZw_kHj3fRs5rdHkYoB=+XkkQ@mail.gmail.com>
	<[email protected]>
	<CAFBsxsEW1fTbhciaGQM1FtJsKtidJG1QGs79nVEny4SZnpjEyg@mail.gmail.com>
	<CAFBsxsESbu57taiRrK5NijATXeDG2woOH7bpK5o1K4GsO9MS4A@mail.gmail.com>
	<[email protected]>
	<[email protected]>

On Wed, Jun 21, 2023 at 12:46 AM Andres Freund <[email protected]> wrote:
>
> Hi,
>
> On 2023-06-20 10:29:41 -0700, Andres Freund wrote:
> > 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.
>
> Which kernel version are you using? It looks like the issue I am hitting
might
> be specific to the in-development 6.4 kernel.

(Fedora 38) uname -r shows

6.3.7-200.fc38.x86_64

--
John Naylor
EDB: http://www.enterprisedb.com


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