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Date:   Fri, 29 Nov 2019 15:39:45 +0100
From:   Stefano Brivio <>
To:     Thadeu Lima de Souza Cascardo <>
Subject: Re: [PATCH] selftests: pmtu: use -oneline for ip route list cache


On Thu, 28 Nov 2019 15:58:06 -0300
Thadeu Lima de Souza Cascardo <> wrote:

> Some versions of iproute2 will output more than one line per entry, which
> will cause the test to fail, like:
> TEST: ipv6: list and flush cached exceptions                        [FAIL]
>   can't list cached exceptions
> That happens, for example, with iproute2 4.15.0. When using the -oneline
> option, this will work just fine:
> TEST: ipv6: list and flush cached exceptions                        [ OK ]
> This also works just fine with a more recent version of iproute2, like
> 5.4.0.
> For some reason, two lines are printed for the IPv4 test no matter what
> version of iproute2 is used. Use the same -oneline parameter there instead
> of counting the lines twice.

Thanks, it looks definitely more robust this way.

Fixes: b964641e9925 ("selftests: pmtu: Make list_flush_ipv6_exception test more demanding")

> Signed-off-by: Thadeu Lima de Souza Cascardo <>

Acked-by: Stefano Brivio <>


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