hald broken with USB drives since 8.0-BETA2

I've had to disable hald on my Acer One netbook since 8.0-BETA2.  Now hald 
seems to work only the first time a USB drive is attached.  The drive is 
detected and mounted, and can be unmounted and remounted via kde3's media 
interface.

But if I unmount the drive and detach it, hald wedges the USB buss.  No 
further USB connections (any device, not just disks) are detected, and 
hald becomes unkillable.

Has anyone else experienced this?  Any suggestions for troubleshooting?

-- 
Greg Rivers