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Wed, 31 Mar 2021 00:05:46 +0000 From: "Wong, Vee Khee" To: "eric.dumazet@gmail.com" CC: "davem@davemloft.net" , "edumazet@google.com" , "kuba@kernel.org" , "netdev@vger.kernel.org" , "syzkaller@googlegroups.com" , "Ismail, Mohammad Athari" Subject: RE: [PATCH net-next] sit: proper dev_{hold|put} in ndo_[un]init methods Thread-Topic: [PATCH net-next] sit: proper dev_{hold|put} in ndo_[un]init methods Thread-Index: AdclwZex17722I4GTTKsQn4BXAqDDQ== Date: Wed, 31 Mar 2021 00:05:45 +0000 Message-ID: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-reaction: no-action dlp-version: 11.5.1.3 dlp-product: dlpe-windows authentication-results: gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=none action=none header.from=intel.com; x-originating-ip: [218.111.199.186] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 41e7340d-b688-4885-79fd-08d8f3d8bbb7 x-ms-traffictypediagnostic: BYAPR11MB3432: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6790; 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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR11MB2870.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 41e7340d-b688-4885-79fd-08d8f3d8bbb7 X-MS-Exchange-CrossTenant-originalarrivaltime: 31 Mar 2021 00:05:45.9655 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: q+giRxYD1rDWpRKCXR2e4wir57CwH7DVKNlgug5Ytc2bSCdT4t9cg48n6XyO1Zx2mOQ5ldjOrsmqIV9dNl8YHA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR11MB3432 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi all, This patch introduced the following massive warnings printouts on a Intel x86 Alderlake platform with STMMAC MAC and Marvell 88E2110 PHY. [=A0 149.674232] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 159.930310] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 170.186205] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 180.434311] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 190.682309] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 200.690176] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 210.938310] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 221.186311] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 231.442311] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 241.690186] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 251.698288] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 261.946311] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 272.194181] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 282.442311] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 292.690310] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 302.938313] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 313.186255] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 323.442329] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 333.698309] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 343.946310] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 354.202166] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 364.450190] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 [=A0 374.706314] unregister_netdevice: waiting for sit0 to become free. Usa= ge count =3D 2 Is this an expected behavior? Thanks, VK