Unable to stack compute node

[FedericoRessi]

I had this problem stacking compute node. logs.zip

2015-12-25 14:02:30.063 | ++ source /opt/stack/networking-ovs-dpdk/devstack/libs/ovs-dpdk
2015-12-25 14:02:30.068 | ++ case $1 in
2015-12-25 14:02:30.068 | ++ case $2 in
2015-12-25 14:02:30.069 | ++ set_vcpu_pin_set
2015-12-25 14:02:30.069 | +++ sed 's/^0x//'
2015-12-25 14:02:30.070 | +++ echo 02
2015-12-25 14:02:30.073 | ++ OVS_CORE_MASK=02
2015-12-25 14:02:30.074 | +++ echo 4
2015-12-25 14:02:30.075 | +++ sed 's/^0x//'
2015-12-25 14:02:30.077 | ++ OVS_PMD_CORE_MASK=4
2015-12-25 14:02:30.078 | +++ echo 2
2015-12-25 14:02:30.079 | +++ echo 4
2015-12-25 14:02:30.080 | ++ BAD_CORES=6
2015-12-25 14:02:30.081 | +++ nproc
2015-12-25 14:02:30.083 | ++ TOTAL_CORES=2
2015-12-25 14:02:30.084 | ++ vcpu_pin_set=
2015-12-25 14:02:30.085 | ++++ expr 2 - 1
2015-12-25 14:02:30.087 | +++ seq 0 1
2015-12-25 14:02:30.090 | ++ for cpu in '$(seq 0 `expr $TOTAL_CORES - 1`)'
2015-12-25 14:02:30.091 | +++ echo '2^0'
2015-12-25 14:02:30.092 | +++ bc
2015-12-25 14:02:30.094 | ++ tmp=1
2015-12-25 14:02:30.094 | ++ '[' 0 -eq 0 ']'
2015-12-25 14:02:30.095 | ++ vcpu_pin_set+=0,
2015-12-25 14:02:30.095 | ++ for cpu in '$(seq 0 `expr $TOTAL_CORES - 1`)'
2015-12-25 14:02:30.096 | +++ echo '2^1'
2015-12-25 14:02:30.096 | +++ bc
2015-12-25 14:02:30.099 | ++ tmp=2
2015-12-25 14:02:30.100 | ++ '[' 2 -eq 0 ']'
2015-12-25 14:02:30.100 | ++ vcpu_pin_set=0
2015-12-25 14:02:30.101 | ++ is_service_enabled nova
2015-12-25 14:02:30.104 | ++ return 0
2015-12-25 14:02:30.105 | ++ iniset /etc/nova/nova.conf DEFAULT vcpu_pin_set 0
2015-12-25 14:02:30.120 | ++ '[' True == True ']'
2015-12-25 14:02:30.121 | ++ iniset / ovs vhostuser_socket_dir /var/run/openvswitch
2015-12-25 14:02:30.127 | tee: /: Is a directory
2015-12-25 14:02:30.129 | Error on exit