> I've got an IBM 340MB microdrive, which frequently doesn't autoconfigure
 > properly:
 > 
 > 	pcic0 at mainbus0
 > 	pcic0: controller 0 (Cirrus PD672X) has sockets A and B
 > 	pcmcia0 at pcic0 controller 0 socket 0
 > 	pcmcia1 at pcic0 controller 0 socket 1
 > 
 > 	wdc0 at pcmcia1 function 0 port 0x15000400-0x1500040f
 > 	wd0 at wdc0 channel 0 drive 0: <ST506>
 > 	wd0: drive supports 1-sector pio transfers, chs addressing
 > 	wd0: 69632 KB, 1024 cyl, 8 head, 17 sec, 512 bytes/sect x 139264 sectors

I have no idea about this, but

 > As near as I can figure, it seems to be a timing related problem.  I found
 > a bunch of articles on google mentioning this specific bad geometry, but
 > they were all in foreign languages which I am unable to read.

If you saw 'wd1 at wdc0 channel 0 drive 1: <ST506>' (not wd0 but wd1) in
Japanese articles, they might be about the problem, 'ghost of MicroDrive'.
Did you see 'The ghost of MicroDrive' in
http://mail-index.netbsd.org/port-hpcmips/2001/01/ ?

Takemura