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Date:   Thu, 12 May 2022 08:28:03 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Amit Cohen <amcohen@...dia.com>, netdev@...r.kernel.org
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, shuah@...nel.org, mlxsw@...dia.com,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH net-next] selftests: fib_nexthops: Make the test more
 robust

On 5/12/22 7:12 AM, Amit Cohen wrote:
> Rarely some of the test cases fail. Make the test more robust by increasing
> the timeout of ping commands to 5 seconds.
> 

Can you explain why test cases fail?

> Signed-off-by: Amit Cohen <amcohen@...dia.com>
> ---
>   tools/testing/selftests/net/fib_nexthops.sh | 48 ++++++++++-----------
>   1 file changed, 24 insertions(+), 24 deletions(-)
> 
> diff --git a/tools/testing/selftests/net/fib_nexthops.sh b/tools/testing/selftests/net/fib_nexthops.sh
> index b3bf5319bb0e..a99ee3fb2e13 100755
> --- a/tools/testing/selftests/net/fib_nexthops.sh
> +++ b/tools/testing/selftests/net/fib_nexthops.sh
> @@ -882,13 +882,13 @@ ipv6_fcnal_runtime()
>   	log_test $? 0 "Route delete"
>   
>   	run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
> -	run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1"
> +	run_cmd "ip netns exec me ping -c1 -w5 2001:db8:101::1"
>   	log_test $? 0 "Ping with nexthop"
>   
Looks like the change uses "-w deadline" - "-W timeout" might
be a better choice if ping fails with no response?

thanks,
-- Shuah

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