I was in the middle of doing a make-kpg modules_image when the laptop turned off behind me. (I'm on my desktop machine ssh'ing in). I figured the power management kicked in, not getting any keyboard/mouse interrupts or something. Well, turns out I had the power connected to the back of the laptop, but not to the wall.
AC on-line, battery charging: 9% (0:33)
It's charging back up now. It would've lasted longer, but I only had one battery in because I needed the floppy earlier.
Anyway, I fetched pcmcia-source and went to build the modules (after fixing the Makefiles, as described in the mailing lists) and went to install it, but it conflicts with modules I'd enabled in the kernel, so now I just rebuilt a new kernel_image and modules_image ... looks like it's working. Cool.