I installed the April 29th lucid 10.04 release and was affected by this on a Thinkpad T43. The bios fix of disabling legacy floppy drives worked for me. The bug also caused constantly on hard drive i/o light, and constant probing of (non-existent) fd0 after boot - this is fixed with the bios fix.
$ uname -a
Linux mah-laptop 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:10:02 UTC 2010 i686 GNU/Linux
fd0 probing results in syslog error message: Buffer I/O error on device fd0, logical block 0
I installed the April 29th lucid 10.04 release and was affected by this on a Thinkpad T43. The bios fix of disabling legacy floppy drives worked for me. The bug also caused constantly on hard drive i/o light, and constant probing of (non-existent) fd0 after boot - this is fixed with the bios fix.
$ uname -a
Linux mah-laptop 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:10:02 UTC 2010 i686 GNU/Linux
fd0 probing results in syslog error message: Buffer I/O error on device fd0, logical block 0