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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5169AECAAD1 for ; Thu, 1 Sep 2022 18:43:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232665AbiIASnd (ORCPT ); Thu, 1 Sep 2022 14:43:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231484AbiIASnc (ORCPT ); Thu, 1 Sep 2022 14:43:32 -0400 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A18452807 for ; Thu, 1 Sep 2022 11:43:31 -0700 (PDT) Received: by mail-io1-f71.google.com with SMTP id be26-20020a056602379a00b0068b50a068baso9373544iob.11 for ; Thu, 01 Sep 2022 11:43:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date; bh=tSm8RJxZnQES9hrhXTPiqnJb2qljBW6PGF4rDckYcBU=; b=M88pSEzaN8URGMqHY4Br5UNCC2LhVr9SdgbwbOOOnXylqgpCOeIxzhKUdXgO6embYe H0aTkHNTlcIE6umGBO1P+0jpoMdQVhhGDS2bGB/xnfEa7QRPJzfijQaZ6NqXpX9Ci9h7 rNaamYNq0++3N3vt0sMqZglepYxccGHtm5LpSKgtUEd825/5zZpnDizuD8NEhG9jFS3T VrZUwUXXsM8L+SL1jq52/jJqQn25Jz8gRL4VW0nUuJZEDCr6t72Chriaukjfr8iHSmGe Xw7aJR+q1f4q+9hamZEfBumP69lDzQI1HZBn2fkEERz/ih7GV+M1i1lHNBdTudFf58On 1Mgg== X-Gm-Message-State: ACgBeo1lZAM4FYyQAXIUs9Yh7dA4S9k8fzG8P0WRmLIixjaB/6d3D4Ev GJSvEBWBw2RnvDuNJOtvFjtUtl4KhXHsaPByZOViqKIP0fEr X-Google-Smtp-Source: AA6agR6ql9AjVH9LUPRZ2P8yA8RUqQd1MM1pz0LeQkxKH9hEtNfnFWcqV2+JI9Nodvy0fRGhQbv0Qt5qi/CHOPcXa90sPkYqb7VE MIME-Version: 1.0 X-Received: by 2002:a6b:580e:0:b0:689:af21:6f3f with SMTP id m14-20020a6b580e000000b00689af216f3fmr16490897iob.116.1662057810886; Thu, 01 Sep 2022 11:43:30 -0700 (PDT) Date: Thu, 01 Sep 2022 11:43:30 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006a06a005e7a1fd95@google.com> Subject: [syzbot] WARNING in floppy_shutdown From: syzbot To: axboe@kernel.dk, efremov@linux.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 10d4879f9ef0 Merge tag 'thermal-6.0-rc3' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13ba5d33080000 kernel config: https://syzkaller.appspot.com/x/.config?x=312be25752c7fe30 dashboard link: https://syzkaller.appspot.com/bug?extid=046fef2eab0d7c657ca0 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+046fef2eab0d7c657ca0@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 2 PID: 3723 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline] WARNING: CPU: 2 PID: 3723 at drivers/block/floppy.c:999 process_fd_request drivers/block/floppy.c:2847 [inline] WARNING: CPU: 2 PID: 3723 at drivers/block/floppy.c:999 floppy_shutdown.cold+0x7b/0xaa drivers/block/floppy.c:1892 Modules linked in: CPU: 2 PID: 3723 Comm: kworker/u16:3 Not tainted 6.0.0-rc2-syzkaller-00283-g10d4879f9ef0 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Workqueue: floppy floppy_shutdown RIP: 0010:schedule_bh drivers/block/floppy.c:999 [inline] RIP: 0010:process_fd_request drivers/block/floppy.c:2847 [inline] RIP: 0010:floppy_shutdown.cold+0x7b/0xaa drivers/block/floppy.c:1892 Code: 05 7e 95 f9 07 20 66 63 8a e8 99 37 77 f8 48 8b 1d 72 43 60 03 31 ff 83 e3 01 89 de e8 16 8b 2b f8 84 db 74 07 e8 8d 8e 2b f8 <0f> 0b e8 86 8e 2b f8 48 8b 35 0f 94 f9 07 bf 08 00 00 00 48 c7 c2 RSP: 0018:ffffc90003147d00 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888014c16080 RSI: ffffffff894fab83 RDI: 0000000000000001 RBP: 0000000000000282 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 R13: ffffc90003147da8 R14: ffff888014efd100 R15: ffff888011875800 FS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563743531680 CR3: 000000001a5d6000 CR4: 0000000000150ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: process_one_work+0x991/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.