[Devel] [PATCH vz10 04/12] selftests: Disable dad for ipv6 in fcnal-test.sh

Aleksei Oladko aleksey.oladko at virtuozzo.com
Wed Dec 17 00:04:16 MSK 2025


From: David Ahern <dsahern at kernel.org>

Constrained test environment; duplicate address detection is not needed
and causes races so disable it.

Signed-off-by: David Ahern <dsahern at kernel.org>
Reviewed-by: Simon Horman <horms at kernel.org>
Link: https://patch.msgid.link/20250910025828.38900-1-dsahern@kernel.org
Signed-off-by: Jakub Kicinski <kuba at kernel.org>

https://virtuozzo.atlassian.net/browse/VSTOR-120995
(cherry picked from commit 53d591730ea34f97a82f7ec6e7c987ca6e34dc21)
Signed-off-by: Aleksei Oladko <aleksey.oladko at virtuozzo.com>
---
 tools/testing/selftests/net/fcnal-test.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
index 46324e73f503..a7edf43245c2 100755
--- a/tools/testing/selftests/net/fcnal-test.sh
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -424,6 +424,8 @@ create_ns()
 	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
 	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
 	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.accept_dad=0
 }
 
 # create veth pair to connect namespaces and apply addresses.
-- 
2.43.0



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