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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 05A7CC10F0E for ; Fri, 12 Apr 2019 06:44:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CF1832073F for ; Fri, 12 Apr 2019 06:44:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726981AbfDLGoC (ORCPT ); Fri, 12 Apr 2019 02:44:02 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:34905 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725747AbfDLGoB (ORCPT ); Fri, 12 Apr 2019 02:44:01 -0400 Received: by mail-io1-f71.google.com with SMTP id k2so7043327ioj.2 for ; Thu, 11 Apr 2019 23:44:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=nvp7ztOb1eozq3DPwMRJnm+OrNK0VnZje3xTWjckm/M=; b=ZNYOu48M5p9qMYlV6Mv9zfpmIynTuBubUgOI5cw2aEgo6miHznzE0YfUGPABBkMZsg lFOgLqjIZ4vvQlHqNlBji2BltR95BWZHgrTn9ZZUgBg8b0ngn+c92LM1Zp6T0oWNfozI R8w9ZtnLPEnce9kBr1ANny1w36LBDQWM7PDuOy/i4axOxxO+9CXOSbVmkG/tvL6l+u6A 7uvW5h5zCdjYDJmU5U5slytLtaWncZ2a2bMTiTwBhvzdaeuDq8vGQR9Si+Onb2TuCb+p spGWiz6iiHJHmV0D+d3VyjH7UTDXnZN8B8pT/V9IGNVSx0LeopZ6dNMvOlce/OBVZjbc UEQw== X-Gm-Message-State: APjAAAWYUWU80uciUh2th8ogILqym5stvlJpFOSo4Rn+7gItmpXEsRIB Z254ymSpU5MIQoWUbDdcaNIefs0yocbQm5MmTTSw+9Qwd5Gm X-Google-Smtp-Source: APXvYqxmW56SWtZY2McV4W+bxn5Ag3GW6Qb2Q3mJnZCdGa1f+Z4xfPcY7s/GS26I/WPCF917ncZHDCxcktJW2P01+l2htdhOSdEp MIME-Version: 1.0 X-Received: by 2002:a24:4645:: with SMTP id j66mr3359001itb.24.1555051441008; Thu, 11 Apr 2019 23:44:01 -0700 (PDT) Date: Thu, 11 Apr 2019 23:44:01 -0700 In-Reply-To: <0000000000002b42040573b8495a@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bfb6c405864fa081@google.com> Subject: Re: WARNING: refcount bug in igmp_start_timer From: syzbot To: akpm@linux-foundation.org, benjamin.gaignard@linaro.org, cmetcalf@ezchip.com, daniel.vetter@ffwll.ch, daniel.vetter@intel.com, davem@davemloft.net, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, paulmck@linux.vnet.ibm.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vincent.abriou@st.com, yoshfuji@linux-ipv6.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit fc5e9d63a8db40e9e3a3b180be33d44af8a3cee8 Author: Daniel Vetter Date: Wed May 24 14:52:05 2017 +0000 drm/sti: Drop drm_vblank_cleanup bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13f62c2d200000 start commit: ae596de1 Compiler Attributes: naked can be shared git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=100e2c2d200000 console output: https://syzkaller.appspot.com/x/log.txt?x=17f62c2d200000 kernel config: https://syzkaller.appspot.com/x/.config?x=5fa12be50bca08d8 dashboard link: https://syzkaller.appspot.com/bug?extid=e28037ac1c96d2a86e89 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=178537da400000 Reported-by: syzbot+e28037ac1c96d2a86e89@syzkaller.appspotmail.com Fixes: fc5e9d63a8db ("drm/sti: Drop drm_vblank_cleanup") For information about bisection process see: https://goo.gl/tpsmEJ#bisection