linux-kernel - [linux-next warning] VFS: do_fd_request called on non-open device

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Message-ID: <20111102162113.GB6717@localhost>
Date:	Thu, 3 Nov 2011 00:21:14 +0800
From:	Wu Fengguang <fengguang.wu@...el.com>
To:	FS <linux-fsdevel@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [linux-next warning] VFS: do_fd_request called on non-open device

Hi,

I got this warning in latest next-20111102 and next-20111025.  The
last working kernel is next-20111014. Wondering if anybody has the
quick answer.

[    7.365671] floppy0: no floppy controllers found
[    7.366160] ------------[ cut here ]------------
[    7.366485] WARNING: at /c/wfg/linux-next/drivers/block/floppy.c:2929 do_fd_request+0x37/0xaa()
[    7.367073] Hardware name:         
[    7.367351] VFS: do_fd_request called on non-open device
[    7.367697] Modules linked in:
[    7.367994] Pid: 1, comm: swapper Not tainted 3.1.0-ioless-full-next-20111102+ #891
[    7.368542] Call Trace:
[    7.368786]  [<ffffffff81074534>] warn_slowpath_common+0x85/0x9d
[    7.369159]  [<ffffffff810745ef>] warn_slowpath_fmt+0x46/0x48
[    7.369524]  [<ffffffff813ec2d2>] ? blk_throtl_drain+0x11a/0x13b
[    7.369898]  [<ffffffff8198604e>] ? _raw_spin_unlock_irq+0x30/0x3c
[    7.370278]  [<ffffffff8151bc61>] do_fd_request+0x37/0xaa
[    7.370630]  [<ffffffff813d9866>] __blk_run_queue+0x1e/0x20
[    7.370988]  [<ffffffff813ded77>] blk_drain_queue+0x41/0x7a
[    7.371345]  [<ffffffff813deed5>] blk_cleanup_queue+0x125/0x184
[    7.371718]  [<ffffffff82146452>] floppy_init+0xd9c/0xdc2
[    7.372067]  [<ffffffff821456b6>] ? daring+0x65/0x65
[    7.372403]  [<ffffffff810002f7>] do_one_initcall+0x7f/0x140
[    7.372765]  [<ffffffff82116c16>] kernel_init+0xcb/0x14f
[    7.373114]  [<ffffffff8198eec4>] kernel_thread_helper+0x4/0x10
[    7.373484]  [<ffffffff819862f4>] ? retint_restore_args+0x13/0x13
[    7.373861]  [<ffffffff82116b4b>] ? start_kernel+0x390/0x390
[    7.374222]  [<ffffffff8198eec0>] ? gs_change+0x13/0x13
[    7.374569] ---[ end trace 06a7c1a65a7ee637 ]---

Full dmesg and kconfig attached.

Thanks,
Fengguang

View attachment "dmesg" of type "text/plain" (183848 bytes)

View attachment ".config" of type "text/plain" (81242 bytes)