Re: Segfault when running postgres inside kubernetes with huge pages

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Siegfried Kiermayer <sicaine(at)gmail(dot)com>
Cc: pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: Re: Segfault when running postgres inside kubernetes with huge pages
Date: 2023-11-08 14:57:26
Message-ID: 667006.1699455446@sss.pgh.pa.us
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Siegfried Kiermayer <sicaine(at)gmail(dot)com> writes:
> we are using zalando postgres operator and i changed / set huge pages
> on kubernetes nodes from something undefined to 1536 (undefined
> because i was pretty sure before changing it to 1536 i saw an initial
> value of 1024 with 670 in use.

This previous discussion might hold the clue:

https://www.postgresql.org/message-id/CAFpoUr1ggmGs8qpoKvYxNBO3h-T-n%2BMNh%2BJnLRYsYhHurVOiGQ%40mail.gmail.com

> I would go into more detail but honestly I believe this might be easy
> to find and I also assume it shouldn't segfault but return an error
> message indicating the / a issue.

There is not that much we can do about operating system bugs.

regards, tom lane

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