From ad7c518e45221533e2094acb20fea6ade477da75 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Mon, 3 Mar 2014 13:37:44 +0100
Subject: [PATCH] Sync /tmp/xchg to ensure that the coverage data is flushed

---
 nixos/lib/test-driver/test-driver.pl | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/nixos/lib/test-driver/test-driver.pl b/nixos/lib/test-driver/test-driver.pl
index c6a707cdf6b9..31f3281cefe0 100644
--- a/nixos/lib/test-driver/test-driver.pl
+++ b/nixos/lib/test-driver/test-driver.pl
@@ -144,6 +144,13 @@ sub runTests {
         }
     });
 
+    $log->nest("syncing", sub {
+        foreach my $vm (values %vms) {
+            next unless $vm->isUp();
+            $vm->execute("sync /tmp/xchg");
+        }
+    });
+
     if ($nrTests != 0) {
         $log->log("$nrSucceeded out of $nrTests tests succeeded",
             ($nrSucceeded < $nrTests ? { error => 1 } : { }));