Otherwise the tests can fail under heavy load (or with valgrind).

Signed-off-by: Ilya Maximets <i.maxim...@samsung.com>
---
 tests/tunnel-push-pop-ipv6.at | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tests/tunnel-push-pop-ipv6.at b/tests/tunnel-push-pop-ipv6.at
index 78fbf41..772f62c 100644
--- a/tests/tunnel-push-pop-ipv6.at
+++ b/tests/tunnel-push-pop-ipv6.at
@@ -45,6 +45,11 @@ dnl Check Neighbour discovery.
 AT_CHECK([ovs-vsctl -- set Interface p0 options:pcap=p0.pcap])
 
 AT_CHECK([ovs-appctl netdev-dummy/receive int-br 
'in_port(2),eth(src=aa:55:aa:55:00:00,dst=f8:bc:12:ff:ff:ff),eth_type(0x0800),ipv4(src=1.1.3.92,dst=1.1.3.88,proto=1,tos=0,ttl=64,frag=no),icmp(type=0,code=0)'])
+
+dnl Wait for the two Neighbor Solicitation packets to be sent.
+dnl Sometimes the system can be slow (e.g. under valgrind)
+OVS_WAIT_UNTIL([test `ovs-pcap p0.pcap | sort | uniq | wc -l` -ge 2])
+
 AT_CHECK([ovs-pcap p0.pcap > p0.pcap.txt 2>&1])
 
 AT_CHECK([cat p0.pcap.txt | grep 92aa55aa55000086dd6000000000203aff2001cafe | 
uniq], [0], [dnl
-- 
2.7.4

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