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	Fri, 24 Feb 2023 21:19:52 -0500
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Chris Hoover <chrish@aweber.com>
cc: pgsql-admin@lists.postgresql.org
Subject: Re: New PG14 server won't start with >2GB shared_buffers
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Comments: In-reply-to Chris Hoover <chrish@aweber.com>
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Date: Fri, 24 Feb 2023 21:19:52 -0500
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Chris Hoover <chrish@aweber.com> writes:
> I have a new server that has 1TB ram (not a typo).  I have been fighting=
 with this evening to start up with a shared_buffer setting over 2GB.  Whe=
n the memory allocation  breaks 2GB, the database won=E2=80=99t start.  I=E2=
=80=99ve dropped it down to 500M to get the database online.  We=E2=80=99v=
e tried both SysV memory and mmap memory.

Are you running inside a VM, or cgroup, or something else that might
be imposing a memory limit?

			regards, tom lane