netdev - Re: selftests/net/ip_defrag.sh fails on mainline since v4.20-rc7-202-g1d51b4b1d3f2

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Message-ID: <CAGx-UoABdcep-POAJ1sQKRm-b8Tp49JWc+faJnDjRWw1AkopjA@mail.gmail.com>
Date:   Fri, 4 Jan 2019 09:27:29 -0800
From:   Peter Oskolkov <posk.devel@...il.com>
To:     Dan Rue <dan.rue@...aro.org>
Cc:     netdev <netdev@...r.kernel.org>, lkft-triage@...ts.linaro.org
Subject: Re: selftests/net/ip_defrag.sh fails on mainline since v4.20-rc7-202-g1d51b4b1d3f2

This is caused by commit ade446403bfb ("net: ipv4: do not handle
duplicate fragments as overlapping"). I have a patch that fixes the
test - waiting for net-next to reopen. Or maybe I should send it to
net?

On Fri, Jan 4, 2019 at 9:10 AM Dan Rue <dan.rue@...aro.org> wrote:
>
> Hi! We've noticed selftests/net/ip_defrag.sh started failing on mainline
> between v4.20-rc7-23-gab63e725b49c (good) and
> v4.20-rc7-202-g1d51b4b1d3f2 (bad). Output looks like:
>
>     selftests: net: ip_defrag.sh
>     ipv4 defrag
>     PASS
>     seed = 1545325420
>     ipv4 defrag with overlaps
>     seed = 1545325421
>     ./ip_defrag: recv: expected timeout; got 2272
>     not ok 1..16 selftests: net: ip_defrag.sh [FAIL]
>     selftests: net_ip_defrag.sh [FAIL]
>
> I see a lot of net/ changes in the diff - we can bisect it if necessary
> but wanted to see if anyone else had already investigated.
>
> Thanks,
> Dan
>
> --
> Linaro - Kernel Validation