In case you saw problems "dk_busy < 0" panics while using the floppy 
driver recently, I've fixed that bug ... get the latest version of fd.c 
after the next sup update.

Sorry about the inconvenience.

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Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                               Home: 408.866.1912
NAS: M/S 258-6                                          Work: 415.604.0935
Moffett Field, CA 94035                                Pager: 415.428.6939