"kernel: DMA write timed out" while printing

[Krzys Majewski <majewski@cs.ubc.ca>]

So I'm printing  a .ps file with  lpr. I get the first  three pages of
the file, and then nothing. Console shows:

Aug 15 16:54:34 mi kernel: lp0: using parport0 (interrupt-driven).
Aug 15 16:54:39 mi kernel: lp0: ECP mode
Aug 15 16:54:57 mi kernel: DMA write timed out
Aug 15 16:55:32 mi last message repeated 2 times

What's going on? This used to work.  Any way to test the printer
hardware given that I can't print .ps files with lpr? Running kernel
2.4.18 (kernel.org, not Debian's). Printer connected to /dev/lp0 via a
parallel port ZIP drive (which works fine). 

-chris