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[2620:137:e000::1:20]) by mx.google.com with ESMTP id j12-20020aa7c0cc000000b0048fac1755bbsi6227520edp.168.2023.01.08.01.27.35; Sun, 08 Jan 2023 01:27:48 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=fail header.i=@alu.unizg.hr header.s=mail header.b=OYlAsPQ4; dkim=fail header.i=@alu.unizg.hr header.s=mail header.b=bVRojJll; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alu.unizg.hr Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232596AbjAHJLo (ORCPT + 53 others); Sun, 8 Jan 2023 04:11:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48192 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229520AbjAHJLi (ORCPT ); Sun, 8 Jan 2023 04:11:38 -0500 Received: from domac.alu.hr (domac.alu.unizg.hr [IPv6:2001:b68:2:2800::3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F78B65DC; Sun, 8 Jan 2023 01:11:34 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by domac.alu.hr (Postfix) with ESMTP id 983D8604F1; Sun, 8 Jan 2023 10:11:31 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=alu.unizg.hr; s=mail; t=1673169091; bh=TnCx8MnHw+76fXaOHxoEMNtZFF3k2xtIXTAR7hD526s=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=OYlAsPQ4VtpK9KujKktkCX131KHoTKntQvYNMmdpgNcmrPuiTc1QCPCC1fi3S7nSt flVLZxC4PrX93ULE9CVIgw+KY80sK+Ud5og3/ecwq/wpSjE61NHrJLMtVtoN972/l3 9ogZf4L/JIGYbPxXPDV4LpLcsIa6ggWF9+Z1yvz86B/C+tOwqO1d2P15LAFpi1DnRI 7/ZDaKrJBcEB+NSfH5hRaCay15qwLuBMST/qqQrkAX1A1qhX3ub3INrtHfQLKWQMJB Bw4drkvU9+CViPrcKzK+bLgZAWWPLURJh9uXPC4QHg2dUAmsfCz1YRcIWbboEg+z/F wN/iyEM4wCK5g== X-Virus-Scanned: Debian amavisd-new at domac.alu.hr Received: from domac.alu.hr ([127.0.0.1]) by localhost (domac.alu.hr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id eBtGShARrNjI; Sun, 8 Jan 2023 10:11:26 +0100 (CET) Received: from [192.168.0.12] (unknown [188.252.196.35]) by domac.alu.hr (Postfix) with ESMTPSA id 23A1A604F0; Sun, 8 Jan 2023 10:11:26 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=alu.unizg.hr; s=mail; t=1673169086; bh=TnCx8MnHw+76fXaOHxoEMNtZFF3k2xtIXTAR7hD526s=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=bVRojJllrqCedLa4v85mqVwohqxqLfo2sB63LNaYYHis8IV/c4e7vJTGbNuEFrbid /nd4FZvrvRVeTzUuNl96oPd+HXKypgD02b1DJuSFRlibBvfuhs1M/yunq9hHrAteUf 78i/MEFsfUxfRDp53NekvAUO/KVnyw8gmlfsxD9BWk59oowT576gKRaM3zNLhyx1ai Wg4rIEA0czmMiodjzNruVbbxRohJFsul2oroWKilaCGPyw/3yM7Q93ftSJAaa2gXc0 rjFApwe0ZnMdv0MwFwwnxCyfwwFhOep6oxeHXJ08PGxsPoetsiJUSEPnA5X+WRj3qZ Hr3vZ8f56kKQQ== Message-ID: <81fdf2bc-4842-96d8-b124-43d0bd5ec124@alu.unizg.hr> Date: Sun, 8 Jan 2023 10:11:25 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.2 Subject: Re: BUG: tools/testing/selftests/net/l2_tos_ttl_inherit.sh hangs when selftest restarted Content-Language: en-US, hr To: Guillaume Nault Cc: linux-kselftest@vger.kernel.org, "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Shuah Khan , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Matthias May References: <924f1062-ab59-9b88-3b43-c44e73a30387@alu.unizg.hr> <5ef41d3c-8d81-86b3-c571-044636702342@alu.unizg.hr> From: Mirsad Goran Todorovac In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07. 01. 2023. 13:44, Guillaume Nault wrote: > [Cc: Matthias since he's the original author of the script] > > On Sat, Jan 07, 2023 at 02:17:07AM +0100, Mirsad Goran Todorovac wrote: >> On 07. 01. 2023. 01:14, Guillaume Nault wrote: >>> On Fri, Jan 06, 2023 at 02:44:11AM +0100, Mirsad Goran Todorovac wrote: >>>> [root@pc-mtodorov linux_torvalds]# tools/testing/selftests/net/l2_tos_ttl_inherit.sh >>>> ┌────────┬───────┬───────┬──────────────┬──────────────┬───────┬────────┐ >>>> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >>>> │ Type │ outer | inner │ tos │ ttl │ vlan │ result │ >>>> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >>>> │ gre │ 4 │ 4 │ inherit 0xc4 │ inherit 116 │ false │Cannot create namespace file "/var/run/netns/testing": File exists >>>> RTNETLINK answers: File exists >>>> RTNETLINK answers: File exists >>>> RTNETLINK answers: File exists >>> >>> You probably have leftovers from a previous test case. In particular >>> the "testing" network name space already exists, which prevents the >>> script from creating it. You can delete it manually with >>> "ip netns del testing". If this netns is there because of a previous >>> incomplete run of l2_tos_ttl_inherit.sh, then you'll likely need to >>> also remove the tunnel interface it created in your current netns >>> ("ip link del tep0"). >> >> Thanks, it worked :) > > Good to know. > >>> Ideally this script wouldn't touch the current netns and would clean up >>> its environment in all cases upon exit. I have a patch almost ready >>> that does just that. >> >> As these interfaces were not cleared by "make kselftest-clean", >> this patch with a cleanup trap would be most welcome. > > Yes, I'll send a patch soon. > >> However, after the cleanup above, the ./l2_tos_ttl_inherit.sh >> script hangs at the spot where it did in the first place (but >> only on Lenovo desktop 10TX000VCR with BIOS M22KT49A from >> 11/10/2022, AlmaLinux 8.7, and kernel 6.2-rc2; not on Lenovo >> Ideapad3 with Ubuntu 22.10, where it worked like a charm with >> the same kernel RC). >> >> The point of hang is this: >> >> [root@pc-mtodorov net]# ./l2_tos_ttl_inherit.sh >> ┌────────┬───────┬───────┬──────────────┬──────────────┬───────┬────────┐ >> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >> │ Type │ outer | inner │ tos │ ttl │ vlan │ result │ >> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >> │ gre │ 4 │ 4 │ inherit 0xb8 │ inherit 102 │ false │ OK │ >> │ gre │ 4 │ 4 │ inherit 0x10 │ inherit 53 │ true │ OK │ >> │ gre │ 4 │ 4 │ fixed 0xa8 │ fixed 230 │ false │ OK │ >> │ gre │ 4 │ 4 │ fixed 0x0c │ fixed 96 │ true │ OK │ >> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >> │ gre │ 4 │ 6 │ inherit 0xbc │ inherit 159 │ false │ OK │ >> │ gre │ 4 │ 6 │ inherit 0x5c │ inherit 242 │ true │ OK │ >> │ gre │ 4 │ 6 │ fixed 0x38 │ fixed 113 │ false │ OK │ >> │ gre │ 4 │ 6 │ fixed 0x78 │ fixed 34 │ true │ OK │ >> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >> │ gre │ 4 │ other │ inherit 0xec │ inherit 69 │ false │ OK │ >> │ gre │ 4 │ other │ inherit 0xf0 │ inherit 201 │ true │ OK │ >> │ gre │ 4 │ other │ fixed 0xec │ fixed 14 │ false │ OK │ >> │ gre │ 4 │ other │ fixed 0xe4 │ fixed 15 │ true │ OK │ >> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >> │ Type │ outer | inner │ tos │ ttl │ vlan │ result │ >> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >> │ gre │ 6 │ 4 │ inherit 0xc4 │ inherit 21 │ false │ OK │ >> │ gre │ 6 │ 4 │ inherit 0xc8 │ inherit 230 │ true │ OK │ >> │ gre │ 6 │ 4 │ fixed 0x24 │ fixed 193 │ false │ OK │ >> │ gre │ 6 │ 4 │ fixed 0x1c │ fixed 200 │ true │ OK │ >> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >> │ gre │ 6 │ 6 │ inherit 0xe4 │ inherit 81 │ false │ OK │ >> │ gre │ 6 │ 6 │ inherit 0xa4 │ inherit 130 │ true │ OK │ >> │ gre │ 6 │ 6 │ fixed 0x18 │ fixed 140 │ false │ OK │ >> │ gre │ 6 │ 6 │ fixed 0xc8 │ fixed 175 │ true │ OK │ >> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >> │ gre │ 6 │ other │ inherit 0x74 │ inherit 142 │ false │ OK │ >> │ gre │ 6 │ other │ inherit 0x50 │ inherit 125 │ true │ OK │ >> │ gre │ 6 │ other │ fixed 0x90 │ fixed 84 │ false │ OK │ >> │ gre │ 6 │ other │ fixed 0xb8 │ fixed 240 │ true │ OK │ >> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >> │ Type │ outer | inner │ tos │ ttl │ vlan │ result │ >> ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ >> │ vxlan │ 4 │ 4 │ inherit 0xb4 │ inherit 93 │ false │ >> >> Developers usually ask for bash -x output of the script that failed or hung >> when reporting problems (too long for an email): >> >> https://domac.alu.unizg.hr/~mtodorov/linux/selftests/net-namespace-20230106/bash-l2_tos_ttl_inherit.html > > Tcpdump blocks until it captures an encapsulated ICMP Echo Request. But > it seems that it doesn't see any. When the script is hanging, what's the > result of "ip route get 198.19.0.2"? > > The output of following commands might also help debugging the problem (run > them while the script is still hanging): > ip link show > ip address show > ip route show > tcpdump --immediate-mode -p -v -i veth0 -n # Kill it manually after a few seconds > ping -c 3 198.19.0.2 OK, but is is copious: [root@pc-mtodorov marvin]# ip link show 1: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: enp1s0: mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000 link/ether f4:93:9f:f0:a5:f5 brd ff:ff:ff:ff:ff:ff 3: virbr0: mtu 1500 qdisc noqueue state DOWN mode DEFAULT group default qlen 1000 link/ether 52:54:00:56:df:f2 brd ff:ff:ff:ff:ff:ff 51: gre0@NONE: mtu 1476 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/gre 0.0.0.0 brd 0.0.0.0 52: gretap0@NONE: mtu 1462 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff 53: erspan0@NONE: mtu 1450 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff 55: ip6tnl0@NONE: mtu 1452 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/tunnel6 :: brd :: permaddr bae0:176c:6eed:: 56: ip6gre0@NONE: mtu 1448 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/gre6 :: brd :: permaddr ca5f:978e:c395:: 67: veth-outside@if66: mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000 link/ether 9e:d6:a5:cb:0a:2b brd ff:ff:ff:ff:ff:ff link-netns test-ns 78: tunl0@NONE: mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ipip 0.0.0.0 brd 0.0.0.0 79: sit0@NONE: mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/sit 0.0.0.0 brd 0.0.0.0 80: ip6_vti0@NONE: mtu 1332 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/tunnel6 :: brd :: permaddr c2fe:1782:e33d:: 81: ip_vti0@NONE: mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ipip 0.0.0.0 brd 0.0.0.0 1110: veth0@if1111: mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000 link/ether 6e:c5:68:82:23:e4 brd ff:ff:ff:ff:ff:ff link-netns testing 1112: tep0: mtu 1500 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/ether da:73:bd:1b:a4:5f brd ff:ff:ff:ff:ff:ff 100: ifb0: mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 32 link/ether 36:3a:ca:87:f6:d7 brd ff:ff:ff:ff:ff:ff 101: ifb1: mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 32 link/ether ce:76:dd:e7:dd:fc brd ff:ff:ff:ff:ff:ff [root@pc-mtodorov marvin]# [root@pc-mtodorov marvin]# ip address show 1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet 10.0.0.1/32 scope global lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: enp1s0: mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether f4:93:9f:f0:a5:f5 brd ff:ff:ff:ff:ff:ff inet 193.198.186.200/27 brd 193.198.186.223 scope global dynamic noprefixroute enp1s0 valid_lft 26499sec preferred_lft 26499sec inet6 2001:b68:2:2a00::1098/128 scope global dynamic noprefixroute valid_lft 2591173sec preferred_lft 603973sec inet6 fe80::f693:9fff:fef0:a5f5/64 scope link noprefixroute valid_lft forever preferred_lft forever 3: virbr0: mtu 1500 qdisc noqueue state DOWN group default qlen 1000 link/ether 52:54:00:56:df:f2 brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 valid_lft forever preferred_lft forever 51: gre0@NONE: mtu 1476 qdisc noop state DOWN group default qlen 1000 link/gre 0.0.0.0 brd 0.0.0.0 52: gretap0@NONE: mtu 1462 qdisc noop state DOWN group default qlen 1000 link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff 53: erspan0@NONE: mtu 1450 qdisc noop state DOWN group default qlen 1000 link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff 55: ip6tnl0@NONE: mtu 1452 qdisc noop state DOWN group default qlen 1000 link/tunnel6 :: brd :: permaddr bae0:176c:6eed:: 56: ip6gre0@NONE: mtu 1448 qdisc noop state DOWN group default qlen 1000 link/gre6 :: brd :: permaddr ca5f:978e:c395:: 67: veth-outside@if66: mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 9e:d6:a5:cb:0a:2b brd ff:ff:ff:ff:ff:ff link-netns test-ns inet6 fe80::9cd6:a5ff:fecb:a2b/64 scope link valid_lft forever preferred_lft forever 78: tunl0@NONE: mtu 1480 qdisc noop state DOWN group default qlen 1000 link/ipip 0.0.0.0 brd 0.0.0.0 79: sit0@NONE: mtu 1480 qdisc noop state DOWN group default qlen 1000 link/sit 0.0.0.0 brd 0.0.0.0 80: ip6_vti0@NONE: mtu 1332 qdisc noop state DOWN group default qlen 1000 link/tunnel6 :: brd :: permaddr c2fe:1782:e33d:: 81: ip_vti0@NONE: mtu 1480 qdisc noop state DOWN group default qlen 1000 link/ipip 0.0.0.0 brd 0.0.0.0 1110: veth0@if1111: mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 6e:c5:68:82:23:e4 brd ff:ff:ff:ff:ff:ff link-netns testing inet 198.18.0.1/24 scope global veth0 valid_lft forever preferred_lft forever 1112: tep0: mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000 link/ether da:73:bd:1b:a4:5f brd ff:ff:ff:ff:ff:ff inet 198.19.0.1/24 brd 198.19.0.255 scope global tep0 valid_lft forever preferred_lft forever 100: ifb0: mtu 1500 qdisc noop state DOWN group default qlen 32 link/ether 36:3a:ca:87:f6:d7 brd ff:ff:ff:ff:ff:ff 101: ifb1: mtu 1500 qdisc noop state DOWN group default qlen 32 link/ether ce:76:dd:e7:dd:fc brd ff:ff:ff:ff:ff:ff [root@pc-mtodorov marvin]# [root@pc-mtodorov marvin]# ip route show default via 193.198.186.193 dev enp1s0 proto dhcp src 193.198.186.200 metric 100 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown 193.198.186.192/27 dev enp1s0 proto kernel scope link src 193.198.186.200 metric 100 198.18.0.0/24 dev veth0 proto kernel scope link src 198.18.0.1 198.19.0.0/24 dev tep0 proto kernel scope link src 198.19.0.1 [root@pc-mtodorov marvin]# [root@pc-mtodorov marvin]# tcpdump --immediate-mode -p -v -i veth0 -n dropped privs to tcpdump tcpdump: listening on veth0, link-type EN10MB (Ethernet), capture size 262144 bytes 08:30:22.835825 IP (tos 0x0, ttl 64, id 2490, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.1.35195 > 198.18.0.2.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 198.19.0.2 tell 198.19.0.1, length 28 08:30:22.835926 IP (tos 0x0, ttl 64, id 1388, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.2.35195 > 198.18.0.1.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Reply 198.19.0.2 is-at a6:45:d5:c4:93:1f, length 28 08:30:22.835976 IP (tos 0xc0, ttl 64, id 29533, offset 0, flags [none], proto ICMP (1), length 106) 198.18.0.1 > 198.18.0.2: ICMP host 198.18.0.1 unreachable - admin prohibited filter, length 86 IP (tos 0x0, ttl 64, id 1388, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.2.35195 > 198.18.0.1.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Reply 198.19.0.2 is-at a6:45:d5:c4:93:1f, length 28 08:30:23.859770 IP (tos 0x0, ttl 64, id 2585, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.1.35195 > 198.18.0.2.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 198.19.0.2 tell 198.19.0.1, length 28 08:30:23.859803 IP (tos 0x0, ttl 64, id 1465, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.2.35195 > 198.18.0.1.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Reply 198.19.0.2 is-at a6:45:d5:c4:93:1f, length 28 08:30:23.859852 IP (tos 0xc0, ttl 64, id 29535, offset 0, flags [none], proto ICMP (1), length 106) 198.18.0.1 > 198.18.0.2: ICMP host 198.18.0.1 unreachable - admin prohibited filter, length 86 IP (tos 0x0, ttl 64, id 1465, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.2.35195 > 198.18.0.1.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Reply 198.19.0.2 is-at a6:45:d5:c4:93:1f, length 28 08:30:24.888024 IP (tos 0x0, ttl 64, id 2652, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.1.35195 > 198.18.0.2.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 198.19.0.2 tell 198.19.0.1, length 28 08:30:24.888094 IP (tos 0x0, ttl 64, id 1630, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.2.35195 > 198.18.0.1.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Reply 198.19.0.2 is-at a6:45:d5:c4:93:1f, length 28 08:30:24.888131 IP (tos 0xc0, ttl 64, id 29607, offset 0, flags [none], proto ICMP (1), length 106) 198.18.0.1 > 198.18.0.2: ICMP host 198.18.0.1 unreachable - admin prohibited filter, length 86 IP (tos 0x0, ttl 64, id 1630, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.2.35195 > 198.18.0.1.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Reply 198.19.0.2 is-at a6:45:d5:c4:93:1f, length 28 08:30:25.911810 IP (tos 0x0, ttl 64, id 2658, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.1.35195 > 198.18.0.2.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 198.19.0.2 tell 198.19.0.1, length 28 08:30:25.911876 IP (tos 0x0, ttl 64, id 1698, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.2.35195 > 198.18.0.1.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Reply 198.19.0.2 is-at a6:45:d5:c4:93:1f, length 28 08:30:25.911920 IP (tos 0xc0, ttl 64, id 29757, offset 0, flags [none], proto ICMP (1), length 106) 198.18.0.1 > 198.18.0.2: ICMP host 198.18.0.1 unreachable - admin prohibited filter, length 86 IP (tos 0x0, ttl 64, id 1698, offset 0, flags [none], proto UDP (17), length 78) 198.18.0.2.35195 > 198.18.0.1.vxlan: VXLAN, flags [I] (0x08), vni 100 ARP, Ethernet (len 6), IPv4 (len 4), Reply 198.19.0.2 is-at a6:45:d5:c4:93:1f, length 28 ^C 12 packets captured 12 packets received by filter 0 packets dropped by kernel [root@pc-mtodorov marvin]# [root@pc-mtodorov marvin]# ping -c 3 198.19.0.2 PING 198.19.0.2 (198.19.0.2) 56(84) bytes of data. From 198.19.0.1 icmp_seq=1 Destination Host Unreachable From 198.19.0.1 icmp_seq=2 Destination Host Unreachable From 198.19.0.1 icmp_seq=3 Destination Host Unreachable --- 198.19.0.2 ping statistics --- 3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 2017ms pipe 2 [root@pc-mtodorov marvin]# > Also, can you please try the below patch? > > -------- >8 -------- > > Isolate testing environment and ensure everything is cleaned up on > exit. > > diff --git a/tools/testing/selftests/net/l2_tos_ttl_inherit.sh b/tools/testing/selftests/net/l2_tos_ttl_inherit.sh > index dca1e6f777a8..f11756e7df2f 100755 > --- a/tools/testing/selftests/net/l2_tos_ttl_inherit.sh > +++ b/tools/testing/selftests/net/l2_tos_ttl_inherit.sh > @@ -12,19 +12,27 @@ > # In addition this script also checks if forcing a specific field in the > # outer header is working. > > +# Return 4 by default (Kselftest SKIP code) > +ERR=4 > + > if [ "$(id -u)" != "0" ]; then > echo "Please run as root." > - exit 0 > + exit $ERR > fi > if ! which tcpdump > /dev/null 2>&1; then > echo "No tcpdump found. Required for this test." > - exit 0 > + exit $ERR > fi > > expected_tos="0x00" > expected_ttl="0" > failed=false > > +readonly NS0=$(mktemp -u ns0-XXXXXXXX) > +readonly NS1=$(mktemp -u ns1-XXXXXXXX) > + > +RUN_NS0="ip netns exec ${NS0}" > + > get_random_tos() { > # Get a random hex tos value between 0x00 and 0xfc, a multiple of 4 > echo "0x$(tr -dc '0-9a-f' < /dev/urandom | head -c 1)\ > @@ -61,7 +69,6 @@ setup() { > local vlan="$5" > local test_tos="0x00" > local test_ttl="0" > - local ns="ip netns exec testing" > > # We don't want a test-tos of 0x00, > # because this is the value that we get when no tos is set. > @@ -94,14 +101,15 @@ setup() { > printf "│%7s │%6s │%6s │%13s │%13s │%6s │" \ > "$type" "$outer" "$inner" "$tos" "$ttl" "$vlan" > > - # Create 'testing' netns, veth pair and connect main ns with testing ns > - ip netns add testing > - ip link add type veth > - ip link set veth1 netns testing > - ip link set veth0 up > - $ns ip link set veth1 up > - ip addr flush dev veth0 > - $ns ip addr flush dev veth1 > + # Create netns NS0 and NS1 and connect them with a veth pair > + ip netns add "${NS0}" > + ip netns add "${NS1}" > + ip link add name veth0 netns "${NS0}" type veth \ > + peer name veth1 netns "${NS1}" > + ip -netns "${NS0}" link set dev veth0 up > + ip -netns "${NS1}" link set dev veth1 up > + ip -netns "${NS0}" address flush dev veth0 > + ip -netns "${NS1}" address flush dev veth1 > > local local_addr1="" > local local_addr2="" > @@ -127,51 +135,59 @@ setup() { > if [ "$type" = "gre" ]; then > type="gretap" > fi > - ip addr add 198.18.0.1/24 dev veth0 > - $ns ip addr add 198.18.0.2/24 dev veth1 > - ip link add name tep0 type $type $local_addr1 remote \ > - 198.18.0.2 tos $test_tos ttl $test_ttl $vxlan $geneve > - $ns ip link add name tep1 type $type $local_addr2 remote \ > - 198.18.0.1 tos $test_tos ttl $test_ttl $vxlan $geneve > + ip -netns "${NS0}" address add 198.18.0.1/24 dev veth0 > + ip -netns "${NS1}" address add 198.18.0.2/24 dev veth1 > + ip -netns "${NS0}" link add name tep0 type $type $local_addr1 \ > + remote 198.18.0.2 tos $test_tos ttl $test_ttl \ > + $vxlan $geneve > + ip -netns "${NS1}" link add name tep1 type $type $local_addr2 \ > + remote 198.18.0.1 tos $test_tos ttl $test_ttl \ > + $vxlan $geneve > elif [ "$outer" = "6" ]; then > if [ "$type" = "gre" ]; then > type="ip6gretap" > fi > - ip addr add fdd1:ced0:5d88:3fce::1/64 dev veth0 > - $ns ip addr add fdd1:ced0:5d88:3fce::2/64 dev veth1 > - ip link add name tep0 type $type $local_addr1 \ > - remote fdd1:ced0:5d88:3fce::2 tos $test_tos ttl $test_ttl \ > - $vxlan $geneve > - $ns ip link add name tep1 type $type $local_addr2 \ > - remote fdd1:ced0:5d88:3fce::1 tos $test_tos ttl $test_ttl \ > - $vxlan $geneve > + ip -netns "${NS0}" address add fdd1:ced0:5d88:3fce::1/64 \ > + dev veth0 nodad > + ip -netns "${NS1}" address add fdd1:ced0:5d88:3fce::2/64 \ > + dev veth1 nodad > + ip -netns "${NS0}" link add name tep0 type $type $local_addr1 \ > + remote fdd1:ced0:5d88:3fce::2 tos $test_tos \ > + ttl $test_ttl $vxlan $geneve > + ip -netns "${NS1}" link add name tep1 type $type $local_addr2 \ > + remote fdd1:ced0:5d88:3fce::1 tos $test_tos \ > + ttl $test_ttl $vxlan $geneve > fi > > # Bring L2-tunnel link up and create VLAN on top > - ip link set tep0 up > - $ns ip link set tep1 up > - ip addr flush dev tep0 > - $ns ip addr flush dev tep1 > + ip -netns "${NS0}" link set tep0 up > + ip -netns "${NS1}" link set tep1 up > + ip -netns "${NS0}" address flush dev tep0 > + ip -netns "${NS1}" address flush dev tep1 > local parent > if $vlan; then > parent="vlan99-" > - ip link add link tep0 name ${parent}0 type vlan id 99 > - $ns ip link add link tep1 name ${parent}1 type vlan id 99 > - ip link set ${parent}0 up > - $ns ip link set ${parent}1 up > - ip addr flush dev ${parent}0 > - $ns ip addr flush dev ${parent}1 > + ip -netns "${NS0}" link add link tep0 name ${parent}0 \ > + type vlan id 99 > + ip -netns "${NS1}" link add link tep1 name ${parent}1 \ > + type vlan id 99 > + ip -netns "${NS0}" link set dev ${parent}0 up > + ip -netns "${NS1}" link set dev ${parent}1 up > + ip -netns "${NS0}" address flush dev ${parent}0 > + ip -netns "${NS1}" address flush dev ${parent}1 > else > parent="tep" > fi > > # Assign inner IPv4/IPv6 addresses > if [ "$inner" = "4" ] || [ "$inner" = "other" ]; then > - ip addr add 198.19.0.1/24 brd + dev ${parent}0 > - $ns ip addr add 198.19.0.2/24 brd + dev ${parent}1 > + ip -netns "${NS0}" address add 198.19.0.1/24 brd + dev ${parent}0 > + ip -netns "${NS1}" address add 198.19.0.2/24 brd + dev ${parent}1 > elif [ "$inner" = "6" ]; then > - ip addr add fdd4:96cf:4eae:443b::1/64 dev ${parent}0 > - $ns ip addr add fdd4:96cf:4eae:443b::2/64 dev ${parent}1 > + ip -netns "${NS0}" address add fdd4:96cf:4eae:443b::1/64 \ > + dev ${parent}0 nodad > + ip -netns "${NS1}" address add fdd4:96cf:4eae:443b::2/64 \ > + dev ${parent}1 nodad > fi > } > > @@ -192,10 +208,10 @@ verify() { > ping_dst="198.19.0.3" # Generates ARPs which are not IPv4/IPv6 > fi > if [ "$tos_ttl" = "inherit" ]; then > - ping -i 0.1 $ping_dst -Q "$expected_tos" -t "$expected_ttl" \ > - 2>/dev/null 1>&2 & ping_pid="$!" > + ${RUN_NS0} ping -i 0.1 $ping_dst -Q "$expected_tos" \ > + -t "$expected_ttl" 2>/dev/null 1>&2 & ping_pid="$!" > else > - ping -i 0.1 $ping_dst 2>/dev/null 1>&2 & ping_pid="$!" > + ${RUN_NS0} ping -i 0.1 $ping_dst 2>/dev/null 1>&2 & ping_pid="$!" > fi > local tunnel_type_offset tunnel_type_proto req_proto_offset req_offset > if [ "$type" = "gre" ]; then > @@ -216,10 +232,12 @@ verify() { > req_proto_offset="$((req_proto_offset + 4))" > req_offset="$((req_offset + 4))" > fi > - out="$(tcpdump --immediate-mode -p -c 1 -v -i veth0 -n \ > - ip[$tunnel_type_offset] = $tunnel_type_proto and \ > - ip[$req_proto_offset] = 0x01 and \ > - ip[$req_offset] = 0x08 2>/dev/null | head -n 1)" > + out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \ > + -i veth0 -n \ > + ip[$tunnel_type_offset] = $tunnel_type_proto and \ > + ip[$req_proto_offset] = 0x01 and \ > + ip[$req_offset] = 0x08 2>/dev/null \ > + | head -n 1)" > elif [ "$inner" = "6" ]; then > req_proto_offset="44" > req_offset="78" > @@ -231,10 +249,12 @@ verify() { > req_proto_offset="$((req_proto_offset + 4))" > req_offset="$((req_offset + 4))" > fi > - out="$(tcpdump --immediate-mode -p -c 1 -v -i veth0 -n \ > - ip[$tunnel_type_offset] = $tunnel_type_proto and \ > - ip[$req_proto_offset] = 0x3a and \ > - ip[$req_offset] = 0x80 2>/dev/null | head -n 1)" > + out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \ > + -i veth0 -n \ > + ip[$tunnel_type_offset] = $tunnel_type_proto and \ > + ip[$req_proto_offset] = 0x3a and \ > + ip[$req_offset] = 0x80 2>/dev/null \ > + | head -n 1)" > elif [ "$inner" = "other" ]; then > req_proto_offset="36" > req_offset="45" > @@ -250,11 +270,13 @@ verify() { > expected_tos="0x00" > expected_ttl="64" > fi > - out="$(tcpdump --immediate-mode -p -c 1 -v -i veth0 -n \ > - ip[$tunnel_type_offset] = $tunnel_type_proto and \ > - ip[$req_proto_offset] = 0x08 and \ > - ip[$((req_proto_offset + 1))] = 0x06 and \ > - ip[$req_offset] = 0x01 2>/dev/null | head -n 1)" > + out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \ > + -i veth0 -n \ > + ip[$tunnel_type_offset] = $tunnel_type_proto and \ > + ip[$req_proto_offset] = 0x08 and \ > + ip[$((req_proto_offset + 1))] = 0x06 and \ > + ip[$req_offset] = 0x01 2>/dev/null \ > + | head -n 1)" > fi > elif [ "$outer" = "6" ]; then > if [ "$type" = "gre" ]; then > @@ -273,10 +295,12 @@ verify() { > req_proto_offset="$((req_proto_offset + 4))" > req_offset="$((req_offset + 4))" > fi > - out="$(tcpdump --immediate-mode -p -c 1 -v -i veth0 -n \ > - ip6[$tunnel_type_offset] = $tunnel_type_proto and \ > - ip6[$req_proto_offset] = 0x01 and \ > - ip6[$req_offset] = 0x08 2>/dev/null | head -n 1)" > + out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \ > + -i veth0 -n \ > + ip6[$tunnel_type_offset] = $tunnel_type_proto and \ > + ip6[$req_proto_offset] = 0x01 and \ > + ip6[$req_offset] = 0x08 2>/dev/null \ > + | head -n 1)" > elif [ "$inner" = "6" ]; then > local req_proto_offset="72" > local req_offset="106" > @@ -288,10 +312,12 @@ verify() { > req_proto_offset="$((req_proto_offset + 4))" > req_offset="$((req_offset + 4))" > fi > - out="$(tcpdump --immediate-mode -p -c 1 -v -i veth0 -n \ > - ip6[$tunnel_type_offset] = $tunnel_type_proto and \ > - ip6[$req_proto_offset] = 0x3a and \ > - ip6[$req_offset] = 0x80 2>/dev/null | head -n 1)" > + out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \ > + -i veth0 -n \ > + ip6[$tunnel_type_offset] = $tunnel_type_proto and \ > + ip6[$req_proto_offset] = 0x3a and \ > + ip6[$req_offset] = 0x80 2>/dev/null \ > + | head -n 1)" > elif [ "$inner" = "other" ]; then > local req_proto_offset="64" > local req_offset="73" > @@ -307,15 +333,17 @@ verify() { > expected_tos="0x00" > expected_ttl="64" > fi > - out="$(tcpdump --immediate-mode -p -c 1 -v -i veth0 -n \ > - ip6[$tunnel_type_offset] = $tunnel_type_proto and \ > - ip6[$req_proto_offset] = 0x08 and \ > - ip6[$((req_proto_offset + 1))] = 0x06 and \ > - ip6[$req_offset] = 0x01 2>/dev/null | head -n 1)" > + out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \ > + -i veth0 -n \ > + ip6[$tunnel_type_offset] = $tunnel_type_proto and \ > + ip6[$req_proto_offset] = 0x08 and \ > + ip6[$((req_proto_offset + 1))] = 0x06 and \ > + ip6[$req_offset] = 0x01 2>/dev/null \ > + | head -n 1)" > fi > fi > kill -9 $ping_pid > - wait $ping_pid 2>/dev/null > + wait $ping_pid 2>/dev/null || true > result="FAIL" > if [ "$outer" = "4" ]; then > captured_ttl="$(get_field "ttl" "$out")" > @@ -351,11 +379,35 @@ verify() { > } > > cleanup() { > - ip link del veth0 2>/dev/null > - ip netns del testing 2>/dev/null > - ip link del tep0 2>/dev/null > + ip netns del "${NS0}" 2>/dev/null > + ip netns del "${NS1}" 2>/dev/null > } > > +exit_handler() { > + # Don't exit immediately if one of the intermediate commands fails. > + # We might be called at the end of the script, when the network > + # namespaces have already been deleted. So cleanup() may fail, but we > + # still need to run until 'exit $ERR' or the script won't return the > + # correct error code. > + set +e > + > + cleanup > + > + exit $ERR > +} > + > +# Restore the default SIGINT handler (just in case) and exit. > +# The exit handler will take care of cleaning everything up. > +interrupted() { > + trap - INT > + > + exit $ERR > +} > + > +set -e > +trap exit_handler EXIT > +trap interrupted INT > + > printf "┌────────┬───────┬───────┬──────────────┬" > printf "──────────────┬───────┬────────┐\n" > for type in gre vxlan geneve; do > @@ -385,6 +437,10 @@ done > printf "└────────┴───────┴───────┴──────────────┴" > printf "──────────────┴───────┴────────┘\n" > > +# All tests done. > +# Set ERR appropriately: it will be returned by the exit handler. > if $failed; then > - exit 1 > + ERR=1 > +else > + ERR=0 > fi Wow, Guillaueme, this patch actually made things unstuck :) [root@pc-mtodorov linux_torvalds]# git apply ../net-inherit-guilllaume1.patch [root@pc-mtodorov linux_torvalds]# cd tools/testing/selftests/net [root@pc-mtodorov net]# ./l2_tos_ttl_inherit.sh ┌────────┬───────┬───────┬──────────────┬──────────────┬───────┬────────┐ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ Type │ outer | inner │ tos │ ttl │ vlan │ result │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ gre │ 4 │ 4 │ inherit 0x80 │ inherit 186 │ false │ OK │ │ gre │ 4 │ 4 │ inherit 0xd0 │ inherit 168 │ true │ OK │ │ gre │ 4 │ 4 │ fixed 0xcc │ fixed 234 │ false │ OK │ │ gre │ 4 │ 4 │ fixed 0xf4 │ fixed 144 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ gre │ 4 │ 6 │ inherit 0x08 │ inherit 252 │ false │ OK │ │ gre │ 4 │ 6 │ inherit 0x10 │ inherit 171 │ true │ OK │ │ gre │ 4 │ 6 │ fixed 0x5c │ fixed 151 │ false │ OK │ │ gre │ 4 │ 6 │ fixed 0xc0 │ fixed 140 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ gre │ 4 │ other │ inherit 0xf4 │ inherit 8 │ false │ OK │ │ gre │ 4 │ other │ inherit 0x44 │ inherit 231 │ true │ OK │ │ gre │ 4 │ other │ fixed 0x40 │ fixed 143 │ false │ OK │ │ gre │ 4 │ other │ fixed 0xa8 │ fixed 13 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ Type │ outer | inner │ tos │ ttl │ vlan │ result │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ gre │ 6 │ 4 │ inherit 0xe4 │ inherit 114 │ false │ OK │ │ gre │ 6 │ 4 │ inherit 0xd8 │ inherit 190 │ true │ OK │ │ gre │ 6 │ 4 │ fixed 0x60 │ fixed 255 │ false │ OK │ │ gre │ 6 │ 4 │ fixed 0x48 │ fixed 90 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ gre │ 6 │ 6 │ inherit 0xb4 │ inherit 179 │ false │ OK │ │ gre │ 6 │ 6 │ inherit 0x68 │ inherit 95 │ true │ OK │ │ gre │ 6 │ 6 │ fixed 0x0c │ fixed 96 │ false │ OK │ │ gre │ 6 │ 6 │ fixed 0x38 │ fixed 98 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ gre │ 6 │ other │ inherit 0x44 │ inherit 54 │ false │ OK │ │ gre │ 6 │ other │ inherit 0xec │ inherit 82 │ true │ OK │ │ gre │ 6 │ other │ fixed 0xf0 │ fixed 3 │ false │ OK │ │ gre │ 6 │ other │ fixed 0x90 │ fixed 183 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ Type │ outer | inner │ tos │ ttl │ vlan │ result │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ vxlan │ 4 │ 4 │ inherit 0xa8 │ inherit 157 │ false │ OK │ │ vxlan │ 4 │ 4 │ inherit 0x9c │ inherit 159 │ true │ OK │ │ vxlan │ 4 │ 4 │ fixed 0x88 │ fixed 21 │ false │ OK │ │ vxlan │ 4 │ 4 │ fixed 0x84 │ fixed 241 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ vxlan │ 4 │ 6 │ inherit 0x78 │ inherit 115 │ false │ OK │ │ vxlan │ 4 │ 6 │ inherit 0x3c │ inherit 21 │ true │ OK │ │ vxlan │ 4 │ 6 │ fixed 0xf4 │ fixed 61 │ false │ OK │ │ vxlan │ 4 │ 6 │ fixed 0x0c │ fixed 24 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ vxlan │ 4 │ other │ inherit 0xa0 │ inherit 112 │ false │ OK │ │ vxlan │ 4 │ other │ inherit 0x2c │ inherit 236 │ true │ OK │ │ vxlan │ 4 │ other │ fixed 0x20 │ fixed 166 │ false │ OK │ │ vxlan │ 4 │ other │ fixed 0x18 │ fixed 129 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ Type │ outer | inner │ tos │ ttl │ vlan │ result │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ vxlan │ 6 │ 4 │ inherit 0xa0 │ inherit 69 │ false │ OK │ │ vxlan │ 6 │ 4 │ inherit 0x4c │ inherit 100 │ true │ OK │ │ vxlan │ 6 │ 4 │ fixed 0x38 │ fixed 1 │ false │ OK │ │ vxlan │ 6 │ 4 │ fixed 0x34 │ fixed 109 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ vxlan │ 6 │ 6 │ inherit 0x18 │ inherit 156 │ false │ OK │ │ vxlan │ 6 │ 6 │ inherit 0x88 │ inherit 104 │ true │ OK │ │ vxlan │ 6 │ 6 │ fixed 0x44 │ fixed 179 │ false │ OK │ │ vxlan │ 6 │ 6 │ fixed 0x84 │ fixed 107 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ vxlan │ 6 │ other │ inherit 0x54 │ inherit 98 │ false │ OK │ │ vxlan │ 6 │ other │ inherit 0x5c │ inherit 121 │ true │ OK │ │ vxlan │ 6 │ other │ fixed 0x3c │ fixed 54 │ false │ OK │ │ vxlan │ 6 │ other │ fixed 0x58 │ fixed 239 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ Type │ outer | inner │ tos │ ttl │ vlan │ result │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ geneve │ 4 │ 4 │ inherit 0x58 │ inherit 33 │ false │ OK │ │ geneve │ 4 │ 4 │ inherit 0x28 │ inherit 98 │ true │ OK │ │ geneve │ 4 │ 4 │ fixed 0x98 │ fixed 60 │ false │ OK │ │ geneve │ 4 │ 4 │ fixed 0x78 │ fixed 152 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ geneve │ 4 │ 6 │ inherit 0x14 │ inherit 124 │ false │ OK │ │ geneve │ 4 │ 6 │ inherit 0x24 │ inherit 147 │ true │ OK │ │ geneve │ 4 │ 6 │ fixed 0x38 │ fixed 178 │ false │ OK │ │ geneve │ 4 │ 6 │ fixed 0x78 │ fixed 38 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ geneve │ 4 │ other │ inherit 0xc0 │ inherit 68 │ false │ OK │ │ geneve │ 4 │ other │ inherit 0x64 │ inherit 136 │ true │ OK │ │ geneve │ 4 │ other │ fixed 0x7c │ fixed 115 │ false │ OK │ │ geneve │ 4 │ other │ fixed 0x9c │ fixed 68 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ Type │ outer | inner │ tos │ ttl │ vlan │ result │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ geneve │ 6 │ 4 │ inherit 0xa0 │ inherit 89 │ false │ OK │ │ geneve │ 6 │ 4 │ inherit 0x5c │ inherit 123 │ true │ OK │ │ geneve │ 6 │ 4 │ fixed 0x4c │ fixed 54 │ false │ OK │ │ geneve │ 6 │ 4 │ fixed 0x70 │ fixed 12 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ geneve │ 6 │ 6 │ inherit 0xc0 │ inherit 161 │ false │ OK │ │ geneve │ 6 │ 6 │ inherit 0x60 │ inherit 47 │ true │ OK │ │ geneve │ 6 │ 6 │ fixed 0xb4 │ fixed 135 │ false │ OK │ │ geneve │ 6 │ 6 │ fixed 0x48 │ fixed 35 │ true │ OK │ ├────────┼───────┼───────┼──────────────┼──────────────┼───────┼────────┤ │ geneve │ 6 │ other │ inherit 0xd0 │ inherit 100 │ false │ OK │ │ geneve │ 6 │ other │ inherit 0x3c │ inherit 149 │ true │ OK │ │ geneve │ 6 │ other │ fixed 0x2c │ fixed 182 │ false │ OK │ │ geneve │ 6 │ other │ fixed 0x68 │ fixed 215 │ true │ OK │ └────────┴───────┴───────┴──────────────┴──────────────┴───────┴────────┘ [root@pc-mtodorov net]# The entire tools/tests/selftests/net section now had a PASS w "OK", save for a couple of tests here: not ok 1 selftests: nci: nci_dev # exit=1 not ok 12 selftests: net: nat6to4.o not ok 13 selftests: net: run_netsocktests # exit=1 not ok 29 selftests: net: udpgro_bench.sh # exit=255 not ok 30 selftests: net: udpgro.sh # exit=255 not ok 37 selftests: net: fcnal-test.sh # TIMEOUT 1500 seconds not ok 38 selftests: net: l2tp.sh # exit=2 not ok 46 selftests: net: icmp_redirect.sh # exit=1 not ok 55 selftests: net: vrf_route_leaking.sh # exit=1 not ok 59 selftests: net: udpgro_fwd.sh # exit=1 not ok 60 selftests: net: udpgro_frglist.sh # exit=255 not ok 61 selftests: net: veth.sh # exit=1 not ok 68 selftests: net: srv6_end_dt46_l3vpn_test.sh # exit=1 not ok 69 selftests: net: srv6_end_dt4_l3vpn_test.sh # exit=1 not ok 75 selftests: net: arp_ndisc_evict_nocarrier.sh # exit=255 not ok 83 selftests: net: test_ingress_egress_chaining.sh # exit=1 not ok 1 selftests: net/hsr: hsr_ping.sh # TIMEOUT 45 seconds not ok 3 selftests: net/mptcp: mptcp_join.sh # exit=1 If you are interested in additional diagnostics, this is a very interesting part of the Linux kernel testing ... There was apparent hang in selftest/net/fcnal-test.sh as well. I can help you with the diagnostics if you wish? Thanks. If I could make them all work both on Ubuntu 22.10 kinetic kudu and AlmaLinux 8.7 stone smilodon (CentOS fork), this would be a milestone for me :) Have a nice day! 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 The European Union