From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762273AbcALCVh (ORCPT ); Mon, 11 Jan 2016 21:21:37 -0500 Received: from mail-pa0-f51.google.com ([209.85.220.51]:33708 "EHLO mail-pa0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761475AbcALCVf (ORCPT ); Mon, 11 Jan 2016 21:21:35 -0500 Message-ID: <1452565288.1223.10.camel@edumazet-glaptop2.roam.corp.google.com> Subject: Re: [OOPS] In __netif_receive_skb_core From: Eric Dumazet To: Salam Noureddine Cc: Ivaylo Dimitrov , "David S. Miller" , Pali =?ISO-8859-1?Q?Roh=E1r?= , Network Development , LKML , Sebastian Reichel , "linux-omap@vger.kernel.org" Date: Mon, 11 Jan 2016 18:21:28 -0800 In-Reply-To: References: <568EA671.7000502@gmail.com> <56929985.3020502@gmail.com> <1452457610.16445.13.camel@edumazet-glaptop2.roam.corp.google.com> <5694188F.80907@gmail.com> <56944DFA.4050002@gmail.com> <1452560786.1223.6.camel@edumazet-glaptop2.roam.corp.google.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2016-01-11 at 17:19 -0800, Salam Noureddine wrote: > It must be that skb->dev was changed to NULL inside of > __netif_receive_skb_core, otherwise we would have crashed much > earlier. Also, orig_dev is saved at the beginning. Possibly a device > is layered on top of the original device. Please do not top post on netdev / lkml mailing lists. My guess is a protocol handler queued the skb without calling skb_share_check()