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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 59BEDC432C0 for ; Tue, 26 Nov 2019 10:16:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2E5CF2071E for ; Tue, 26 Nov 2019 10:16:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727848AbfKZKQE (ORCPT ); Tue, 26 Nov 2019 05:16:04 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:51445 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727752AbfKZKQD (ORCPT ); Tue, 26 Nov 2019 05:16:03 -0500 Received: by mail-il1-f198.google.com with SMTP id x2so16057823ilk.18 for ; Tue, 26 Nov 2019 02:16:02 -0800 (PST) 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=7ecu66BMHVud9DuzcAquPrxjiVzhM/h7EUP/vbsVeT0=; b=EZQS6/cGgyceVt+smeIZC543Go80NJt9LlP+Tmg4ivdbdW2yyzylpaBNufqDfmlXCs EYInTYbIniTG6ikvUhh/yI/acJHT4EGqnCfbWKIWy479xsA6ZOcuAUhtq7V6DV2yMIoS 9rrgJmlnziEhmb++iZPNlDwHp8KsC1dAbUG3OBLyhwKrQI/Me8to1AGBswumDtMbehCx jJmAn7WOIix6FjG3LRFh4oOJP+oCfUXJxm6Aa+cF7On+hchRHWj21RCJ1Z1Wi2TSq+Ra AW4naJkJdnN1x4BCxA0xjN/X79pnQYBnpgmXo+2D7XvLWkiELrS3Yk9vcmGy7A/aThz7 wqjA== X-Gm-Message-State: APjAAAVnzfq/1s7aiu5D45ZbUp7DDRyXzzHsjMCZ/ezsCgCTWeVq7oO9 RXw2tdf2C+/qDRuH9oi07D5ePH/3kdMZ8Z/+M/Wrl1i09fv0 X-Google-Smtp-Source: APXvYqyozbo+bQ0Kv4jzAJMRKPS3S8LaBuyHiSS+ZbpT2Dw8Sg5CxjtmgBByAoHJJQ7lf7NxK6t1Htol/EVxcnlk7n9dOWJV1knV MIME-Version: 1.0 X-Received: by 2002:a02:c9c6:: with SMTP id c6mr13899624jap.133.1574763361594; Tue, 26 Nov 2019 02:16:01 -0800 (PST) Date: Tue, 26 Nov 2019 02:16:01 -0800 In-Reply-To: <0000000000001558f3056a369689@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c5f3d905983d2ae0@google.com> Subject: Re: WARNING in __device_add_disk From: syzbot To: akinobu.mita@gmail.com, akpm@linux-foundation.org, axboe@kernel.dk, dvyukov@google.com, gregkh@linuxfoundation.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, mhocko@kernel.org, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.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 e41d58185f1444368873d4d7422f7664a68be61d Author: Dmitry Vyukov Date: Wed Jul 12 21:34:35 2017 +0000 fault-inject: support systematic fault injection bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17889f5ae00000 start commit: 6da6c0db Linux v4.17-rc3 git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=14489f5ae00000 console output: https://syzkaller.appspot.com/x/log.txt?x=10489f5ae00000 kernel config: https://syzkaller.appspot.com/x/.config?x=5a1dc06635c10d27 dashboard link: https://syzkaller.appspot.com/bug?extid=3337db851ace689ceb50 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15191837800000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=120af5c7800000 Reported-by: syzbot+3337db851ace689ceb50@syzkaller.appspotmail.com Fixes: e41d58185f14 ("fault-inject: support systematic fault injection") For information about bisection process see: https://goo.gl/tpsmEJ#bisection