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-rw-r--r--[-rwxr-xr-x]net/test/anycast_test.py9
1 files changed, 7 insertions, 2 deletions
diff --git a/net/test/anycast_test.py b/net/test/anycast_test.py
index 62d874e..6222580 100755..100644
--- a/net/test/anycast_test.py
+++ b/net/test/anycast_test.py
@@ -93,9 +93,14 @@ class AnycastTest(multinetwork_base.MultiNetworkBaseTest):
# This will hang if the kernel has the bug.
thread = CloseFileDescriptorThread(self.tuns[netid])
thread.start()
- # Wait up to 0.5 seconds for the thread to finish, but
+ # Wait up to 3 seconds for the thread to finish, but
# continue and fail the test if the thread hangs.
- thread.join(0.5)
+
+ # For kernels with MPTCP ported, closing tun interface need more
+ # than 0.5 sec. DAD procedure within MPTCP fullmesh module takes
+ # more time, because duplicate address-timer takes a refcount
+ # on the IPv6-address, preventing it from getting closed.
+ thread.join(3)
# Make teardown work.
del self.tuns[netid]