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=unavailable 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 DFF42C10F0E for ; Fri, 12 Apr 2019 06:44:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B90892186A for ; Fri, 12 Apr 2019 06:44:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726951AbfDLGoC (ORCPT ); Fri, 12 Apr 2019 02:44:02 -0400 Received: from mail-it1-f199.google.com ([209.85.166.199]:55975 "EHLO mail-it1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726194AbfDLGoB (ORCPT ); Fri, 12 Apr 2019 02:44:01 -0400 Received: by mail-it1-f199.google.com with SMTP id g184so8238111ita.5 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=RNJiuHId8pAbSAOTNTi6YBWERY23Sno3sfjyq/NZtWQH/JaVhuHaOYlUNj3k0I45N/ UYzyksqGCMeZc1/YQfrPff5QullvPP139tRKugdJXe3M+iUVWI+4/KJK0zjuUUDu/5JW 0D0H/upmjE/d/5KN19GpakYqCrHwc5cdg7Fu+MQAcDsmAuhDGNxjH3GBGM4BmOvuwVZx 30OH6OOX8b8araRGVdGv8Bt/PGATHgpbJxMyRoDu6ymhk6KGxwCHLKTCcp6dtjjU7xLl 3AUf3zMW5gWGnuVgM1knaBaNZ4kV6mYWbEkOlOv5J67ZW1DMlIwTfEA/Fum/vvfK40UX SWEw== X-Gm-Message-State: APjAAAWTJvxRCF7fKqLQ/xTJK9gS820c55qRmze9YH6L/mr5ILIp+Js0 n8XCPN7hI8QGl/e27whmD3mRtuB7Noc0WrSQBJTGRRlRDM7A 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: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@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