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,URIBL_BLOCKED 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 A96B4C10F14 for ; Thu, 11 Apr 2019 12:14:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 82B892064B for ; Thu, 11 Apr 2019 12:14:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726661AbfDKMOB (ORCPT ); Thu, 11 Apr 2019 08:14:01 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:33996 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726096AbfDKMOB (ORCPT ); Thu, 11 Apr 2019 08:14:01 -0400 Received: by mail-io1-f70.google.com with SMTP id y13so4723610iol.1 for ; Thu, 11 Apr 2019 05:14:01 -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=cR60vCMLhHRTpswjZfhooIP8Hma1vPgin0AXvYMDh0s=; b=WMr18b9J7Q9WdZ2rWPTx32Yx4Ma5QiQBPlArUVT3VYNNLCiis8YR28alnylL5w58c/ vib5Qu4DpZqwMGy2NPwJ+G4Jaoa/ocqNBSytGC9h7OahKWjZoA3o4IxDGJU1qEWddxdS 1oTAIQ4IXUoZv4nxlXeroHrPa7htc+fcoRF65GMukgsroq120G9OCOck7kFfgWpPaT9P QccZexhsndnZOI7Ba8sVWfbs6TBwVHOSOTP+gPERSMg7sb/zPofnUQUgf4hh6/lDeb0L U1fg/Jjtf1n8lS0d3G4QJVnvRHNC7e7oOqkwTGMP/1pZAnw/+XNniIntmDcw6PvyzE4p r0cA== X-Gm-Message-State: APjAAAV0I61H7+sMvLlgCkOxrnYs7hB2hBRJPVr+OzEDy2C3xC36rEpj G91CbD7RqTplMWPv/S3xnvrKLgBHvl11vS56CljEkY9iDTYV X-Google-Smtp-Source: APXvYqzK1P71Q/BRcrCT6iNrGNC8OrRFpihfnoYN3tGWPzEpTjqOgdt44TUuZDljqoC9+mI4MT7gzGGh5pO17DnrV81P4PMA4l0i MIME-Version: 1.0 X-Received: by 2002:a24:cac6:: with SMTP id k189mr1833557itg.24.1554984840761; Thu, 11 Apr 2019 05:14:00 -0700 (PDT) Date: Thu, 11 Apr 2019 05:14:00 -0700 In-Reply-To: <000000000000b7fd51058370d0d9@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000109c700586401f48@google.com> Subject: Re: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! From: syzbot To: benh@kernel.crashing.org, davem@davemloft.net, gregkh@linuxfoundation.org, johan.hedberg@gmail.com, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, netdev@vger.kernel.org, rafael@kernel.org, syzkaller-bugs@googlegroups.com, tj@kernel.org, torvalds@linux-foundation.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 726e41097920a73e4c7c33385dcc0debb1281e18 Author: Benjamin Herrenschmidt Date: Tue Jul 10 00:29:10 2018 +0000 drivers: core: Remove glue dirs from sysfs earlier bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15f69eaf200000 start commit: 771acc7e Bluetooth: btusb: request wake pin with NOAUTOEN git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=17f69eaf200000 console output: https://syzkaller.appspot.com/x/log.txt?x=13f69eaf200000 kernel config: https://syzkaller.appspot.com/x/.config?x=4fb64439e07a1ec0 dashboard link: https://syzkaller.appspot.com/bug?extid=91fd909b6e62ebe06131 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11770a8f200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=128c945b200000 Reported-by: syzbot+91fd909b6e62ebe06131@syzkaller.appspotmail.com Fixes: 726e41097920 ("drivers: core: Remove glue dirs from sysfs earlier") For information about bisection process see: https://goo.gl/tpsmEJ#bisection