[pve-devel] [PATCH common] Fix #908: cleanup OVS ports in tap_unplug

Wolfgang Bumiller w.bumiller at proxmox.com
Tue Apr 12 16:02:52 CEST 2016

tap_unplug() is only called in hotplugging functions which
perform a tap_plug() afterwards, and and in qemu-server's
bridge-down script.
The OVS port cleanup for non-firewall ports was done only in
tap_plug(), which means that in the case when qemu exits and
the tap device disappears, the OVS port for it stays.

With this patch the cleanup happens in both tap_unplug() and
tap_plug() to avoid problems with upgrades on systems
where there have already been ports leaked.
 src/PVE/Network.pm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/PVE/Network.pm b/src/PVE/Network.pm
index 78529e1..bda2067 100644
--- a/src/PVE/Network.pm
+++ b/src/PVE/Network.pm
@@ -371,6 +371,8 @@ sub tap_unplug {
+    #cleanup old port config from any openvswitch bridge
+    eval {run_command("/usr/bin/ovs-vsctl del-port $iface", outfunc => sub {}, errfunc => sub {}) };
 sub copy_bridge_config {

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