I've been trying to push a few GB of data from my powerbook to my quad
G5 with rsync, but after transferring for a bit the machine stops
entirely. It doesn't even reply to ping, so this must be happening in an
interrupt.

The only information I have so far is a picture I took of the console
when this happened again:
http://johannes.sipsolutions.net/files/dsc_2275.jpg

Unfortunately, there isn't even a backtrace for some reason.

johannes