From ff167ea5db66903c1a2f65b29ea0147b1108f2c9 Mon Sep 17 00:00:00 2001
From: John Barboza <jbarboza@ca.ibm.com>
Date: Sat, 13 Jan 2018 12:18:28 -0500
Subject: [PATCH] zos,doc: add system V message queue note

System V message queues will get left behind on z/OS if uv_loop_t
objects are not closed via uv_loop_close.

PR-URL: https://github.com/libuv/libuv/pull/1823

Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index 1aaed1a8..d42ada56 100644
--- a/README.md
+++ b/README.md
@@ -322,6 +322,13 @@ describes the package in more detail.
 
 AIX support for filesystem events is not compiled when building with `gyp`.
 
+### z/OS Notes
+
+z/OS creates System V semaphores and message queues. These persist on the system
+after the process terminates unless the event loop is closed.
+
+Use the `ipcrm` command to manually clear up System V resources.
+
 ## Patches
 
 See the [guidelines for contributing][].