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[204.195.112.199]) by smtp.gmail.com with ESMTPSA id c34-20020a630d22000000b0034cb89e4695sm12854497pgl.28.2022.03.07.12.11.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Mar 2022 12:11:25 -0800 (PST) Date: Mon, 7 Mar 2022 12:11:23 -0800 From: Stephen Hemminger To: David Ahern , Steffen Klassert , Herbert Xu Cc: netdev@vger.kernel.org Subject: Regression in add xfrm interface Message-ID: <20220307121123.1486c035@hermes.local> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org There appears to be a regression between 5.10 (Debian 11) and 5.16 (Debian testing) kernel in handling of ip link xfrm create. This shows up in the iproute2 testsuite which now fails. This is kernel (not iproute2) regression. Running ip/link/add_type_xfrm.t [iproute2-this/5.16.0-1-amd64]: FAILED Good log: :::::::::::::: link/add_type_xfrm.t.iproute2-this.out :::::::::::::: [Testing Add XFRM Interface, With IF-ID] tests/ip/link/add_type_xfrm.t: Add dev-ktyXSm xfrm interface succeeded tests/ip/link/add_type_xfrm.t: Show dev-ktyXSm xfrm interface succeeded with output: 2: dev-ktyXSm@lo: mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/none promiscuity 0 minmtu 68 maxmtu 65535 xfrm if_id 0xf addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535 test on: "dev-ktyXSm" [SUCCESS] test on: "if_id 0xf" [SUCCESS] tests/ip/link/add_type_xfrm.t: Del dev-ktyXSm xfrm interface succeeded [Testing Add XFRM Interface, No IF-ID] tests/ip/link/add_type_xfrm.t: Add dev-tkUDaA xfrm interface succeeded tests/ip/link/add_type_xfrm.t: Show dev-tkUDaA xfrm interface succeeded with output: 3: dev-tkUDaA@lo: mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/none promiscuity 0 minmtu 68 maxmtu 65535 xfrm if_id 0 addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535 test on: "dev-tkUDaA" [SUCCESS] test on: "if_id 0xf" [SUCCESS] tests/ip/link/add_type_xfrm.t: Del dev-tkUDaA xfrm interface succeeded Failed log: [Testing Add XFRM Interface, With IF-ID] tests/ip/link/add_type_xfrm.t: Add dev-pxNsUc xfrm interface succeeded tests/ip/link/add_type_xfrm.t: Show dev-pxNsUc xfrm interface succeeded with output: 2: dev-pxNsUc@lo: mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/none promiscuity 0 minmtu 68 maxmtu 65535 xfrm if_id 0xf addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535 test on: "dev-pxNsUc" [SUCCESS] test on: "if_id 0xf" [SUCCESS] tests/ip/link/add_type_xfrm.t: Del dev-pxNsUc xfrm interface succeeded [Testing Add XFRM Interface, No IF-ID] test on: "dev-dSwSKP" [FAILED] test on: "if_id 0xf" [FAILED]