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Message-ID: <20190222184940.56d36a76@redhat.com>
Date: Fri, 22 Feb 2019 18:49:40 +0100
From: Stefano Brivio <sbrivio@...hat.com>
To: Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
David Ahern <dsahern@...il.com>
Subject: Re: [PATCH net 1/2] selftests: pmtu: disable dad in all namespaces
On Fri, 22 Feb 2019 17:06:32 +0100
Paolo Abeni <pabeni@...hat.com> wrote:
> Otherwise, the configured IPv6 address could be still "tentative"
> at test time, possibly causing tests failures.
> We can also drop some sleep along the code and decrease the
> timeout for most commands so that the test runtime decreases.
Thanks for fixing this!
I tried this back then and it didn't work, perhaps some DAD changes
intervened meanwhile (or I simply tried it wrong).
Just one comment:
> Fixes: d1f1b9cbf34c ("selftests: net: Introduce first PMTU test")
> Signed-off-by: Paolo Abeni <pabeni@...hat.com>
> ---
> tools/testing/selftests/net/pmtu.sh | 28 +++++++++++++---------------
> 1 file changed, 13 insertions(+), 15 deletions(-)
>
> diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
> index e2c94e47707c..634e91e8fe25 100755
> --- a/tools/testing/selftests/net/pmtu.sh
> +++ b/tools/testing/selftests/net/pmtu.sh
> @@ -263,8 +263,6 @@ setup_fou_or_gue() {
>
> ${ns_a} ip link set ${encap}_a up
> ${ns_b} ip link set ${encap}_b up
> -
> - sleep 1
> }
>
> setup_fou44() {
> @@ -302,6 +300,10 @@ setup_gue66() {
> setup_namespaces() {
> for n in ${NS_A} ${NS_B} ${NS_R1} ${NS_R2}; do
> ip netns add ${n} || return 1
> +
> + # disable dad, so that we don't have to wait to use the
> + # configured IPv6 addresses
For consistency: "Disable DAD ..."
--
Stefano
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