linux-kernel - POSSIBLE BUG: selftests/net/fcnal-test.sh: [FAIL] in vrf "bind

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Message-ID: <b6191f90-ffca-dbca-7d06-88a9788def9c@alu.unizg.hr>
Date:   Wed, 24 May 2023 14:17:09 +0200
From:   Mirsad Todorovac <mirsad.todorovac@....unizg.hr>
To:     netdev@...r.kernel.org
Cc:     "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-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        Guillaume Nault <gnault@...hat.com>
Subject: POSSIBLE BUG: selftests/net/fcnal-test.sh: [FAIL] in vrf "bind - ns-B
 IPv6 LLA" test

Hi,

The very recent 6.4-rc3 kernel build with AlmaLinux 8.7 on LENOVO 10TX000VCR
desktop box fails one test:

[root@...t net]# ./fcnal-test.sh
[...]
TEST: ping out, vrf device+address bind - ns-B loopback IPv6                  [ OK ]
TEST: ping out, vrf device+address bind - ns-B IPv6 LLA                       [FAIL]
TEST: ping in - ns-A IPv6                                                     [ OK ]
[...]
Tests passed: 887
Tests failed:   1
[root@...t net]#

Please find the config, + dmesg and lshw output here:

https://domac.alu.unizg.hr/~mtodorov/linux/selftests/net-fcnal-test/config-6.4-rc3
https://domac.alu.unizg.hr/~mtodorov/linux/selftests/net-fcnal-test/dmesg.log
https://domac.alu.unizg.hr/~mtodorov/linux/selftests/net-fcnal-test/lshw.txt

I believe that I have all required configs merged for the selftest/net tests.

Maybe we have a regression?

My knowledge of fcnal-test.sh isn't sufficient to build a smaller reproducer.

Guillaume said in January he could help with the net/fcnal-test.sh, but I was doing
the other things in the meantime. Tempus fugit :-/

Best regards,
Mirsad

-- 
Mirsad Goran Todorovac
Sistem inženjer
Grafički fakultet | Akademija likovnih umjetnosti
Sveučilište u Zagrebu

System engineer
Faculty of Graphic Arts | Academy of Fine Arts
University of Zagreb, Republic of Croatia

"What’s this thing suddenly coming towards me very fast? Very very fast.
... I wonder if it will be friends with me?"