I have a USB flash disk that I've been using for a while.  Recently -- I'm
not certain when, but I don't think it coincided with a kernel change -- I
get messages like this:

	/netbsd: uhub3: port 4 reset failed

when I plug it in to my laptop.  It works just fine when I connect it to
the USB hub in my monitor.  The obvious suspect, then, is my laptop's USB
ports.  *However* -- if I plug a cheap, unpowered USB hub into the laptop,
the hub works; furthermore, I can plug the flash disk into the hub and
*it* works, too.

		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb