From 48ada8ebe9cea0446e7c3c8490c99ac5eb9d87a0 Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Thu, 9 Apr 2026 12:27:56 +0000
Subject:  Doc update

---
 doc/s6-notify-socket-from-fd.html | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'doc')

diff --git a/doc/s6-notify-socket-from-fd.html b/doc/s6-notify-socket-from-fd.html
index ec2a57a..452cdb4 100644
--- a/doc/s6-notify-socket-from-fd.html
+++ b/doc/s6-notify-socket-from-fd.html
@@ -116,6 +116,13 @@ not using the systemd notification protocol, normally has no use for it. </dd>
 <h2 id="notes"> Notes </h2>
 
 <ul>
+ <li> <tt>s6-notify-socket-from-fd</tt> sends its notification as a subprocess
+with a different pid from <em>prog</em>, so the unit file running the service
+needs the <tt>NotifyAccess=all</tt> directive. </li>
+ <li> Despite <em>building</em> on every OS supported by s6,
+<tt>s6-notify-socket-from-fd</tt> will only <em>work</em> on systems implementing
+abstract sockets with autobind, which in practice means Linux 2.3.15 and later.
+This is okay, because it is only useful to systemd users. </li>
  <li> This program was previously available on skarnet.org outside of any
 package, under the name <tt>sdnotify-wrapper</tt>. </li>
  <li> <tt>s6-notify-socket-from-fd</tt> is for s6-style daemons that you
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