netdev - Re: linux kernel – 4.4.45 : VPN test failure

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Message-ID: <CAKD1Yr0wRge5Xk453iaNUx4k4=q5iUDc-X2a=9gBwR5nuwuO2g@mail.gmail.com>
Date:   Thu, 26 Oct 2017 09:39:27 +0900
From:   Lorenzo Colitti <lorenzo@...gle.com>
To:     "Nanjappa, Gangadhar" <Gangadhar.Nanjappa@...man.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "kuznet@....inr.ac.ru" <kuznet@....inr.ac.ru>,
        "jmorris@...ei.org" <jmorris@...ei.org>,
        "yoshfuji@...ux-ipv6.org" <yoshfuji@...ux-ipv6.org>,
        "kaber@...sh.net" <kaber@...sh.net>,
        "amit.pundir@...aro.org" <amit.pundir@...aro.org>,
        "andy@...yhouse.net" <andy@...yhouse.net>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "steffen.klassert@...unet.com" <steffen.klassert@...unet.com>,
        "herbert@...dor.apana.org.au" <herbert@...dor.apana.org.au>,
        "pablo@...filter.org" <pablo@...filter.org>,
        "kadlec@...ckhole.kfki.hu" <kadlec@...ckhole.kfki.hu>,
        "g.nault@...halink.fr" <g.nault@...halink.fr>,
        "jiri@...lanox.com" <jiri@...lanox.com>
Subject: Re: linux kernel – 4.4.45 : VPN test failure

On Wed, Oct 25, 2017 at 9:49 PM, Nanjappa, Gangadhar
<Gangadhar.Nanjappa@...man.com> wrote:
> Using linux kernel – 4.4.45 (Blurry Fish Butt), VPN test fails. If I revert
> the attached five patches, VPN test passes.
> [...]
>
> 1.       1-net-core-add-UID-to-flows-rules-and-routes.patch

Those patches don't exist in 4.4, they were merged in 4.10. It looks
like this is an Android-specific test. The easiest way to resolve this
issue is to run the Android networking unit tests:

https://source.android.com/devices/architecture/kernel/network_tests

The tests will tell you if your kernel lacks necessary patches or
otherwise cannot support Android userspace networking code. The
failures will be much clearer than the CTS test failures.