$ uname -a
Linux gzp1 3.2.30 #1 SMP PREEMPT Wed Oct 3 20:45:06 CEST 2012 i686 GNU/Linux

$ modprobe floppy
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077

$ dd if=/dev/zero of=/dev/fd0

------------[ cut here ]------------
WARNING: at drivers/block/floppy.c:1041 setup_rw_floppy+0x2f7/0x310 [floppy]()
Hardware name: System Product Name
floppy_disable_hlt() scheduled for removal in 2012
Modules linked in: floppy nfs lockd sunrpc nvidia(P) agpgart saa7115 em28xx 
v4l2_common videodev videobuf_vmalloc videobuf_core tveeprom coretemp w83627ehf 
hwmon_vid hwmon i2c_i801 i2c_core e1000e snd_hda_codec_analog snd_hda_intel 
snd_hda_codec snd_pcm_oss snd_pcm snd_timer snd_page_alloc snd_mixer_oss snd 
soundcore usb_storage ehci_hcd uhci_hcd usbhid hid usbcore usb_common
Pid: 0, comm: swapper/0 Tainted: P           O 3.2.30 #1
Call Trace:
 [<c102c428>] ? warn_slowpath_common+0x78/0xb0
 [<f80e5e37>] ? setup_rw_floppy+0x2f7/0x310 [floppy]
 [<f80e5e37>] ? setup_rw_floppy+0x2f7/0x310 [floppy]
 [<f80e3100>] ? vdma_dma_setup+0x40/0x40 [floppy]
 [<c102c4f3>] ? warn_slowpath_fmt+0x33/0x40
 [<f80e5e37>] ? setup_rw_floppy+0x2f7/0x310 [floppy]
 [<f80e5b40>] ? fd_watchdog+0xa0/0xa0 [floppy]
 [<c1036235>] ? run_timer_softirq+0xd5/0x1e0
 [<c10313e5>] ? __do_softirq+0x75/0x100
 [<c1031370>] ? remote_softirq_receive+0x20/0x20
 <IRQ>  [<c1031706>] ? irq_exit+0x76/0xa0
 [<c1015998>] ? smp_apic_timer_interrupt+0x58/0x90
 [<c1275bc6>] ? apic_timer_interrupt+0x2a/0x30
 [<c1008ef1>] ? mwait_idle+0x41/0x60
 [<c10015b6>] ? cpu_idle+0x46/0x80
 [<c134d6a7>] ? start_kernel+0x2a4/0x2a9
 [<c134d1a7>] ? loglevel+0x2b/0x2b
---[ end trace 866d317faa03c5c8 ]---
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