linux-kernel - Re: [BUG] selftests/net: test_vxlan_mdb.sh: 84 out of 642 tests [FAIL]

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Date: Tue, 19 Mar 2024 16:25:57 +0200
From: Ido Schimmel <idosch@...dia.com>
To: Mirsad Todorovac <mirsad.todorovac@....unizg.hr>
Cc: Hangbin Liu <liuhangbin@...il.com>, netdev@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Shuah Khan <shuah@...nel.org>, linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [BUG] selftests/net: test_vxlan_mdb.sh: 84 out of 642 tests
 [FAIL]

On Tue, Mar 19, 2024 at 06:05:16AM +0100, Mirsad Todorovac wrote:
> On 3/18/24 04:35, Hangbin Liu wrote:
> > On Sun, Mar 17, 2024 at 12:19:12AM +0100, Mirsad Todorovac wrote:
> > > Hi,
> > > 
> > > While running kselftest on vanilla torvalds tree kernel commit v6.8-11167-g4438a810f396,
> > > the test suite reported a number of errors.
> > > 
> > > I was using the latest iproute2-next suite on an Ubuntu 22.04 LTS box.
> > > 
> > > # Tests passed: 558
> > > # Tests failed:  84
> > > not ok 90 selftests: net: test_vxlan_mdb.sh # exit=1
> > 
> > FYI, I tested with 6.8 kernel with net tree. All passed.
> > 
> > Data path: MDB torture test - IPv6 overlay / IPv6 underlay
> > ----------------------------------------------------------
> > TEST: Torture test                                                  [ OK ]
> > 
> > Tests passed: 642
> > Tests failed:   0
> > 
> > # uname -r
> > 6.8.0-virtme
> > 
> > Thanks
> > Hangbin
> 
> Hi, Hangbin,
> 
> I am running an Ubuntu 22.04 LTS configuration.

Didn't get your first mail for some reason. Anyway, it might be related
to the fact that Ubuntu is using an old version of libnet:

https://launchpad.net/ubuntu/+source/libnet

I remember fixing similar issues in the past:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cb034948ac292da82cc0e6bc1340f81be36e117d

Will look into it today or later this week.