From afd75e54e3242919cc936746ae6fe5d94ff8faa0 Mon Sep 17 00:00:00 2001
From: Fabian Keil <fk@fabiankeil.de>
Date: Sun, 1 May 2016 16:27:55 +0200
Subject: [PATCH 138/325] vmstat: Prevent output truncation when piping zone
 statistics

... into other programs.

Apparently libxo (currently?) can't be trusted to flush its
internal buffer before it's full, triggering the flushing
manually works around this.

Before (sometimes):
fk@r500 ~ $vmstat -z | wc -c
    8192

After (consistently):
fk@r500 ~ $vmstat -z | wc -c
   24156

Obtained from: ElectroBSD
PR: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206128
---
 usr.bin/vmstat/vmstat.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/usr.bin/vmstat/vmstat.c b/usr.bin/vmstat/vmstat.c
index e8cec07fd46b..8632b218a966 100644
--- a/usr.bin/vmstat/vmstat.c
+++ b/usr.bin/vmstat/vmstat.c
@@ -1505,6 +1505,7 @@ domemstat_zone(void)
 		    (uintmax_t)memstat_get_failures(mtp),
 		    (uintmax_t)memstat_get_sleeps(mtp));
 		xo_close_instance("zone");
+		xo_flush();
 	}
 	memstat_mtl_free(mtlp);
 	xo_close_list("zone");
-- 
2.32.0