Description of problem:
I needed to write out a bunch of floppy image files with dd to /dev/fd0 and
every first write to the next floppy would fail.  Trying immediately again,
would succeed.

Version-Release number of selected component (if applicable):
kernel-2.6.20-1.2944.fc6

How reproducible:
all the time, tested on two different fc6 machines.

Steps to Reproduce:
1. Insert a floppy.
2. $ dd if=/dev/zero of=/dev/fd0 count=1 bs=1000

data written out correctly:

1+0 records in
1+0 records out
1000 bytes (1.0 kB) copied, 0.0909503 seconds, 11.0 kB/s

3. remove floppy.
4. insert floppy back into drive.
5. $ dd if=/dev/zero of=/dev/fd0 count=1 bs=1000

error:
floppy0: disk absent or changed during operation
end_request: I/O error, dev fd0, sector 0
dd: writing `/dev/fd0': Input/output error
1+0 records in
0+0 records out
0 bytes (0 B) copied, 0.0209154 seconds, 0.0 kB/s

6. rerun dd command from step 5.

write succeeds.


Actual results:

step 5. fails.

Expected results:

step 5. should succeed. kernel is confused.

Additional info:

Haven't had to use the floppy in awhile, but this worked correctly at some point
in the past.