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Thu, 6 Oct 2022 06:08:59 +0000 From: Dattu Gundu <dattu.gundu@oracle.com> To: "users@dpdk.org" <users@dpdk.org> Subject: qdisc errors on Azure VM (TAP Config) Thread-Topic: qdisc errors on Azure VM (TAP Config) Thread-Index: AdjZRwa72P+QqpNES9mBqrDDrWlGiQ== Date: Thu, 6 Oct 2022 06:08:59 +0000 Message-ID: <PH0PR10MB443736423182D0C8576F337B905C9@PH0PR10MB4437.namprd10.prod.outlook.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-publictraffictype: Email x-ms-traffictypediagnostic: PH0PR10MB4437:EE_|SA1PR10MB6445:EE_ x-ms-office365-filtering-correlation-id: 62f11036-3627-499d-2262-08daa7614283 x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255; 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I understand these errors started popping from DPDK 20.11.1 due to extended= ack support was added in Linux version 4.17 And used for diagnosing the TAP config in kernel.=20 Is it because we are trying to delete the qdisc before they are created ? And looks like the failure is per queue.=20 Am I missing any packages ? How to avoid these errors ? If they are not serious, is there a way to suppress them ? net_vdev_netvsc: probably using routed NetVSC interface "s0p0" (index 7) tap_nl_dump_ext_ack(): Cannot delete qdisc with handle of zero tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid net_vdev_netvsc: probably using routed NetVSC interface "s1p0" (index 8) tap_nl_dump_ext_ack(): Cannot delete qdisc with handle of zero tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid tap_nl_dump_ext_ack(): Failed to find qdisc with specified classid Currently using below kernel:=20 5.4.17 x86_64 GNU/Linux #3 SMP PREEMPT Thu Aug 18 05:23:39 UTC 2022 Thanks, Raghava Dattu.