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 02E19C76188 for ; Mon, 3 Apr 2023 14:55:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234175AbjDCOzX (ORCPT ); Mon, 3 Apr 2023 10:55:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234160AbjDCOzS (ORCPT ); Mon, 3 Apr 2023 10:55:18 -0400 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B370F280D2 for ; Mon, 3 Apr 2023 07:54:54 -0700 (PDT) Received: by mail-il1-f197.google.com with SMTP id d6-20020a92d786000000b00316f1737173so19755684iln.16 for ; Mon, 03 Apr 2023 07:54:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680533694; x=1683125694; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=vPkeM6iVQmH51RezuW+fSSVO087XA5s1H6NW6olKmYg=; b=SpLTXqS2dKL4LkykTywFmNtVngqvvkzrBCnkDqGOOuhlCdzfcbA7o5eml6PplDfrMp QoeMNbR2FAHhe7r7iDsUuMQaWeMjVzOl4EzzlfCvKC43LDaiOyHSd8izg8+lJd6/T8k5 x9u3yE0dJzWgJgupibMfWDzC36s3FDLlo/EL8EC0/M2xkHWhnOEkK6UtEOyS3XXyWw8K GA3Z7JUpYhnbodsFvuxa5HBKDJ+/ol8p3/QpjHsaW6Sodz+lxuxuTyqk3MuJgw+nXiWo wlPA4mDks92eXJS3+goNd87XLYgxaPrPgFMnuM2mPCpxbiz3thFybji4OfmtHXB3eazD PKYw== X-Gm-Message-State: AAQBX9cqK19PhjeJ7nrR6Edqe3Jjrbnfp47I9rebfq8Qi5vTPNlqC5sc TS49nHoxbQkWW3Ehv4ld14eEMuJgg6pSYiET3YkGKjCDbphH X-Google-Smtp-Source: AKy350bJ7Pe47KEb4vQQRIqXVM9pfr+NX+zTWRzXW+KSApy6hrByjHeELRIXUQkGOGzUpsQeEjEjuOOAQ4+VMciJxz7pyS1yvNG0 MIME-Version: 1.0 X-Received: by 2002:a05:6e02:218d:b0:322:fd25:872c with SMTP id j13-20020a056e02218d00b00322fd25872cmr18242499ila.2.1680533694048; Mon, 03 Apr 2023 07:54:54 -0700 (PDT) Date: Mon, 03 Apr 2023 07:54:54 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ddf5f505f86fbd72@google.com> Subject: [syzbot] [block?] WARNING in process_fd_request 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: ffe78bbd5121 Merge tag 'xtensa-20230327' of https://github.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=146bbb71c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=d40b592130bb7abb dashboard link: https://syzkaller.appspot.com/bug?extid=1d4201dfe9f2386fdc0b compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: i386 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+1d4201dfe9f2386fdc0b@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 29261 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline] WARNING: CPU: 0 PID: 29261 at drivers/block/floppy.c:999 process_fd_request+0x6b/0x70 drivers/block/floppy.c:2847 Modules linked in: CPU: 0 PID: 29261 Comm: kworker/u8:17 Not tainted 6.3.0-rc4-syzkaller-00039-gffe78bbd5121 #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+0x6b/0x70 drivers/block/floppy.c:2847 Code: fc 5b bf 08 00 00 00 48 c7 c2 c0 78 45 8d 48 8b 35 6a a3 ec 0c 48 c7 05 7f 9e ec 0c b0 8c 1c 85 e9 ea 70 36 fc e8 05 6d 66 fc <0f> 0b eb ce 90 48 b8 00 00 00 00 00 fc ff df 41 55 49 89 fd 41 54 RSP: 0018:ffffc90002f7fcf0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88801d64ba80 RSI: ffffffff851c6b4b RDI: 0000000000000001 RBP: 0000000000000282 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90002f7fda8 R13: ffffffff8d457950 R14: ffff88800019f200 R15: ffff888012489000 FS: 0000000000000000(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000584eb404 CR3: 0000000023f74000 CR4: 0000000000150ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: floppy_shutdown+0x135/0x230 drivers/block/floppy.c:1889 process_one_work+0x991/0x15c0 kernel/workqueue.c:2390 worker_thread+0x669/0x1090 kernel/workqueue.c:2537 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 --- 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.