From: Tom Lane <tgl@sss.pgh.pa.us>
To: Alvaro Herrera <alvherre@2ndquadrant.com>
cc: Alex Hunsaker <badalex@gmail.com>, Robert Haas <robertmhaas@gmail.com>,
        "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Subject: Re: Back-patch use of unnamed POSIX semaphores for Linux?
In-reply-to: <20161207232746.ufv2uu6gb3cqcmb5@alvherre.pgsql>
References: <20161207232746.ufv2uu6gb3cqcmb5@alvherre.pgsql>
Comments: In-reply-to Alvaro Herrera <alvherre@2ndquadrant.com>
	message dated "Wed, 07 Dec 2016 20:27:46 -0300"
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <2657.1481154597.1@sss.pgh.pa.us>
Content-Transfer-Encoding: quoted-printable
Date: Wed, 07 Dec 2016 18:49:57 -0500
Message-ID: <2658.1481154597@sss.pgh.pa.us>
Precedence: bulk
Sender: pgsql-hackers-owner@postgresql.org

Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> Tom Lane wrote:
>> Color me confused ... maybe systemd's behavior has changed?

> https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.o=
rg/thread/ZNQW72UP36UAFMX53HPFFQTWTQDZVJ3M/

I see Lennart hasn't gotten any less convinced that he's always right
since I left Red Hat :-(

But anyway, it's a demonstrable fact that Fedora 25 has KillUserProcesses
off by default, even though it contains systemd-231.  I assume FESCO
brought down the hammer at some point.

This still doesn't address the real question, which is whether RemoveIPC
does anything if KillUserProcesses is off, and whether that behavior
has changed.  I don't see anything about RemoveIPC in that thread.

			regards, tom lane


--=20
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers