From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6E8E4C28CF6 for ; Wed, 1 Aug 2018 08:57:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0CDC320894 for ; Wed, 1 Aug 2018 08:57:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0CDC320894 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=secunet.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388881AbeHAKme (ORCPT ); Wed, 1 Aug 2018 06:42:34 -0400 Received: from a.mx.secunet.com ([62.96.220.36]:59036 "EHLO a.mx.secunet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388607AbeHAKmd (ORCPT ); Wed, 1 Aug 2018 06:42:33 -0400 Received: from localhost (localhost [127.0.0.1]) by a.mx.secunet.com (Postfix) with ESMTP id 8122B201BF; Wed, 1 Aug 2018 12:57:35 +0200 (CEST) X-Virus-Scanned: by secunet Received: from a.mx.secunet.com ([127.0.0.1]) by localhost (a.mx.secunet.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tqPd4owt5z_c; Wed, 1 Aug 2018 12:57:35 +0200 (CEST) Received: from mail-essen-01.secunet.de (mail-essen-01.secunet.de [10.53.40.204]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by a.mx.secunet.com (Postfix) with ESMTPS id 3243F2006F; Wed, 1 Aug 2018 12:57:35 +0200 (CEST) Received: from gauss2.secunet.de (10.182.7.193) by mail-essen-01.secunet.de (10.53.40.204) with Microsoft SMTP Server id 14.3.399.0; Wed, 1 Aug 2018 10:57:50 +0200 Received: by gauss2.secunet.de (Postfix, from userid 1000) id C01BF3182109; Wed, 1 Aug 2018 10:57:49 +0200 (CEST) Date: Wed, 1 Aug 2018 10:57:49 +0200 From: Steffen Klassert To: Tetsuo Handa CC: Herbert Xu , "David S. Miller" , syzbot , , , , , Subject: Re: unregister_netdevice: waiting for DEV to become free Message-ID: <20180801085749.3nf5hbxjxoafangb@gauss3.secunet.de> References: <000000000000d71bf6056a34b628@google.com> <000000000000ed9844056a507832@google.com> <50d24879-7f38-f8c5-982f-b3fc5d3a9cc6@I-love.SAKURA.ne.jp> <11ddcad9-f3fa-dfbc-18a0-e5facc37a4a3@I-love.SAKURA.ne.jp> <20180731113152.4pes5xwhae2xydqg@gauss3.secunet.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20180731113152.4pes5xwhae2xydqg@gauss3.secunet.de> User-Agent: NeoMutt/20170609 (1.8.3) X-G-Data-MailSecurity-for-Exchange-State: 0 X-G-Data-MailSecurity-for-Exchange-Error: 0 X-G-Data-MailSecurity-for-Exchange-Sender: 23 X-G-Data-MailSecurity-for-Exchange-Server: d65e63f7-5c15-413f-8f63-c0d707471c93 X-EXCLAIMER-MD-CONFIG: 2c86f778-e09b-4440-8b15-867914633a10 X-G-Data-MailSecurity-for-Exchange-Guid: 3B9A4770-5726-46D9-8C1E-A1E5669DC17D Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 31, 2018 at 01:31:52PM +0200, Steffen Klassert wrote: > On Tue, Jul 31, 2018 at 08:16:22PM +0900, Tetsuo Handa wrote: > > Steffen and Herbert, > > > > Do you have any question? I think I provided enough information for debugging. > > It seems that I was not on Cc at the beginning of the threat, > so I had to search the web for some context. > > I'm currently trying your reproducer (still with my .config) but I don't > hit the problem. Actually, I did not hit it because it is already fixed in my tree. It is fixed by: commit 8cc88773855f988d6a3bbf102bbd9dd9c828eb81 xfrm: fix missing dst_release() after policy blocking lbcast and multicast This fix went to mainline on Monday.