From: Tom Lane <tgl@sss.pgh.pa.us>
To: Alexander Korotkov <aekorotkov@gmail.com>
cc: Alexander Lakhin <exclusion@gmail.com>, pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #18374: Printing memory contexts on OOM condition might lead to segmentation fault
In-reply-to: <CAPpHfduPAmF95Zg=sMfhBW+0Q=Bq2KKzF7AamvTQ0UDm80ZOLA@mail.gmail.com>
References: <18374-ebb8113ce4d02f0d@postgresql.org> <3120721.1709395887@sss.pgh.pa.us> <b1a1eaf3-d5b7-da52-6bb7-c5b3fbe47f3e@gmail.com> <3140126.1709405398@sss.pgh.pa.us> <3148162.1709409519@sss.pgh.pa.us> <3399097.1709501969@sss.pgh.pa.us> <CAPpHfduPAmF95Zg=sMfhBW+0Q=Bq2KKzF7AamvTQ0UDm80ZOLA@mail.gmail.com>
Comments: In-reply-to Alexander Korotkov <aekorotkov@gmail.com>
	message dated "Wed, 06 Mar 2024 22:24:03 +0200"
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <313081.1709760083.1@sss.pgh.pa.us>
Content-Transfer-Encoding: quoted-printable
Date: Wed, 06 Mar 2024 16:21:23 -0500
Message-ID: <313082.1709760083@sss.pgh.pa.us>
Archived-At: <https://www.postgresql.org/message-id/313082.1709760083%40sss.pgh.pa.us>
Precedence: bulk

Alexander Korotkov <aekorotkov@gmail.com> writes:
> For removing recursion from memory context processing, please check
> the patch by Heikki [1], and my slightly revised version [2].

> Links.
> 1. https://www.postgresql.org/message-id/6b48c746-9704-46dc-b9be-01fe413=
7c824%40iki.fi
> 2. https://www.postgresql.org/message-id/CAPpHfdtQVzkKgrxqKZE9yESnu7cAAT=
VQbGktVOSXPNWG7GOkhA%40mail.gmail.com

I'd forgotten about that thread.  I'll comment there, thanks!

The issue Alexander has identified about the kernel possibly not
giving us as much stack as promised should stay in this thread,
but we can discuss the idea of de-recursing mcxt.c over there.

			regards, tom lane