From 3ed5f40df866fe48b7f634e353e40b699899c1f8 Mon Sep 17 00:00:00 2001
From: Alexander Sulfrian <alexander@sulfrian.net>
Date: Wed, 2 Oct 2013 18:15:07 +0200
Subject: vserver.netns: only delete the netns, if nothing is active in it

---
 vserver.netns | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/vserver.netns b/vserver.netns
index 8d9e244..c507621 100755
--- a/vserver.netns
+++ b/vserver.netns
@@ -143,7 +143,19 @@ if [ -n "${_USE_NETNS}" ]; then
         _processSingleNetwork remove "$net"
     done
 
-    $_IP netns delete "$VSERVER_NAME"
+    procs="$($_IP netns exec "$VSERVER_NAME" netstat -tulpenW | sed '1d;2d')"
+    if [ -n "$procs" ]; then
+        echo "There are still processes active in the network namespace:"
+        echo "$procs"
+        echo
+        echo "Deleting of the network namespace would produce a bad state."
+        echo "So we DO NOT delete the network namespace. You maybe want
+        echo "to kill the processes and execute the following commands:"
+        echo "    $_IP netns exec \"$VSERVER_NAME\" netstat -tulpen"
+        echo "    $_IP netns delete \"$VSERVER_NAME\""
+    else
+        $_IP netns delete "$VSERVER_NAME"
+    fi
 fi
 
 exit $ret
-- 
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