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=-9.0 required=3.0 tests=BAYES_00,FROM_LOCAL_DIGITS, FROM_LOCAL_HEX,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,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 3816DC433E1 for ; Sun, 2 Aug 2020 07:43:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 217F4207FB for ; Sun, 2 Aug 2020 07:43:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726785AbgHBHnH (ORCPT ); Sun, 2 Aug 2020 03:43:07 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:42715 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725882AbgHBHnG (ORCPT ); Sun, 2 Aug 2020 03:43:06 -0400 Received: by mail-il1-f199.google.com with SMTP id c12so11677725iln.9 for ; Sun, 02 Aug 2020 00:43:06 -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=eqE7M2+jLX9Z2b2ijRlZEwnniJaj49l3REpKdM5etlE=; b=G5IzwKpuP+8afxdSQiNs45uBIUl1T87wZLjdHshtrQwmsD+vu72bmXfgy9KMJ+ZuRa /GyrNmbfsEr9Dx0HO1fm88X3EV98MZy7BBAYDlebYG1Lx3VGlBESxZ5blGRaDbLB9cGx ZeERG9e+213D5ZwbrFJfyYCFDN04WFiUF38uMWLV6VqBfvNV0C7h0llZ8cqRgKTZe4z2 rSc0VGyakA/Q2nu9iKtmXMwfl2nxMVUNuUgZYObU8SY47Z7fwA+JlFnN+Ac6ozt+Rcxl +src95jIsJ82BtSDRfzKJELqVS2UMyggqNFdJMUUculhNkb1sbGmf9OgcO/7m6am1iio 2jdg== X-Gm-Message-State: AOAM53216EK5NOdpcDh+fvcGzF0SpB0/w0kNo0uUaqVVi/c9ChuPJXo3 1pM2OECK7P7SVDSwZxL5pRGyP8eRoDmNCspxj1N6HOi2/7/y X-Google-Smtp-Source: ABdhPJwPGH2yiYhjXOJM0c9EdW/Wpe7YJ1kZV2DXqRnNQjYhM6BG3LXmVT5ZL1XYU6JMC/FZ7hlVZVJTAwLiRQixN1DQMDrTFguA MIME-Version: 1.0 X-Received: by 2002:a05:6638:2647:: with SMTP id n7mr1328983jat.61.1596354185896; Sun, 02 Aug 2020 00:43:05 -0700 (PDT) Date: Sun, 02 Aug 2020 00:43:05 -0700 In-Reply-To: <000000000000ea90600598c9b089@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002fa64705abe02c21@google.com> Subject: Re: possible deadlock in __dev_queue_xmit (3) From: syzbot To: ap420073@gmail.com, davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has bisected this issue to: commit 1a33e10e4a95cb109ff1145098175df3113313ef Author: Cong Wang Date: Sun May 3 05:22:19 2020 +0000 net: partially revert dynamic lockdep key changes bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10434970900000 start commit: d8b9faec Merge tag 'drm-fixes-2020-07-31' of git://anongit.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=12434970900000 console output: https://syzkaller.appspot.com/x/log.txt?x=14434970900000 kernel config: https://syzkaller.appspot.com/x/.config?x=c0cfcf935bcc94d2 dashboard link: https://syzkaller.appspot.com/bug?extid=3b165dac15094065651e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=163e2c92900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=143f2bb8900000 Reported-by: syzbot+3b165dac15094065651e@syzkaller.appspotmail.com Fixes: 1a33e10e4a95 ("net: partially revert dynamic lockdep key changes") For information about bisection process see: https://goo.gl/tpsmEJ#bisection