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=-8.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_IN_DEF_DKIM_WL autolearn=no 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 0C95AC10DCE for ; Fri, 13 Mar 2020 07:31:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C62E0206B1 for ; Fri, 13 Mar 2020 07:31:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="ZyaC46HF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726420AbgCMHbL (ORCPT ); Fri, 13 Mar 2020 03:31:11 -0400 Received: from mail-qt1-f193.google.com ([209.85.160.193]:41140 "EHLO mail-qt1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726216AbgCMHbL (ORCPT ); Fri, 13 Mar 2020 03:31:11 -0400 Received: by mail-qt1-f193.google.com with SMTP id l21so6707257qtr.8 for ; Fri, 13 Mar 2020 00:31:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=otjCA0qUOdrbDfCxjamOr2JfsohGEgJgplUkLsbNr4E=; b=ZyaC46HF44G9D3UVtFVFnr1FvCuUAuDuU6fdUNcNPX/xO05FUwGz11D7mK5B+T0WJL cJizWGQUGrSIovoj0XOopxczBCSNjbrIRi89l9uw26i8Lvt6CgEo45yR7hmJg7OI4e24 f35T8f6Q1HzUqRmjtzGbnUlp08Km19leQ+RpfkKrpRiCOGUOO3xs3YzZKMr2zQbyhxaV BuhZO6rniiH6gZdR8aDRjy2pR8NApcQ0aS7FiJw7M5xkzCJEYtvpBoAvrtATeAtVRqSy 4J0E5zZewUXfqiPwSY4EgshTl8aZwKYT1K8FGdjdJRYwBTklP16RGnH+FSAzJgdk8ae7 0mVA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=otjCA0qUOdrbDfCxjamOr2JfsohGEgJgplUkLsbNr4E=; b=m5fYSwEQu2sj4Na8aeMteyY/WV9tRdutk0p+8U8RbySeHwntNguc9Z9lmJyHyLnU8v YvCBkTvqV4H8Nd5689AiZ69f96HPZLu0RhGzNvgiS3xnIkhpjNOFw/+tYkPxsTElntf+ a3OSKRghWwOvrBXbvr+KWlGCBukA+czGqF0e13FO7ObxLSAqq+y5+8HqyVe/IcpSNQ8E ZoCjU4RQp4/JL6rwtafHClmsCkagu6uEN30ZTRwYxORNsvWKuPl9y5Ke3Pi81kYSr0Se +uLUZJ8Ax8ZZNw5xUTtcGhTB8pCzmZz6Mh2eGFP9v7MokMzILQo07/kXtOMfOz5G+HUP TUBQ== X-Gm-Message-State: ANhLgQ0n5wMfajK5MB41oa93UwEtCQMsxx1HuFHEg0xtLEgOkG8QRYtX 178AaYKa0PfWDlBZdRACNe4mMZEZ49qo69CKzaLadQ== X-Google-Smtp-Source: ADFU+vuv3HwZeTF5PsruoeS+N8rIruzo+vgdaAkOxSLbvfRlYHD1x0nqc8BJf9m+C9//uMqVnG1egWzVQBf8UmOQInY= X-Received: by 2002:ac8:f85:: with SMTP id b5mr10932879qtk.158.1584084669617; Fri, 13 Mar 2020 00:31:09 -0700 (PDT) MIME-Version: 1.0 References: <0000000000000ea4b4059fb33201@google.com> <000000000000c7979105a0a311f6@google.com> <20200313014435.GY979@breakpoint.cc> In-Reply-To: <20200313014435.GY979@breakpoint.cc> From: Dmitry Vyukov Date: Fri, 13 Mar 2020 08:30:58 +0100 Message-ID: Subject: Re: WARNING in geneve_exit_batch_net (2) To: Florian Westphal Cc: syzbot , coreteam@netfilter.org, David Miller , Hillf Danton , Jiri Benc , Jozsef Kadlecsik , LKML , moshe@mellanox.com, netdev , NetFilter , Pablo Neira Ayuso , Sabrina Dubroca , syzkaller-bugs , Thomas Gleixner Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 13, 2020 at 2:45 AM Florian Westphal wrote: > > syzbot wrote: > > syzbot has bisected this bug to: > > > > commit 4e645b47c4f000a503b9c90163ad905786b9bc1d > > Author: Florian Westphal > > Date: Thu Nov 30 23:21:02 2017 +0000 > > > > netfilter: core: make nf_unregister_net_hooks simple wrapper again > > No idea why this turns up, the reproducer doesn't hit any of these code > paths. The attached bisection log usually makes this reasonably transparent. It seems that in this case another kernel bug gets in the way of bisection. > The debug splat is a false-positive; ndo_stop/list_del hasn't run yet. > I will send a fix for net tree. > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/20200313014435.GY979%40breakpoint.cc.