Debugging cups problems

[Alan Cox]

I've moved one server box to FC15 to get support for various bits of
newer hardware. Aside from preupgrade not working (blowing up near the
end and not adding the boot entries) its mostly behaving as a server.

One thing that has totally broken though is the cups printing support.

Its a networked printer (Dell 3115N multi-function) and I've tried it
with the 3100 drivers included in Fedora 15 and with the Dell drivers
that worked before.

In both cases I see

D [06/Jul/2011:19:01:49 +0100] [Job 2] backendRunLoop(print_fd=0,
device_fd=5, s nmp_fd=6, addr=0x7f40de2b8a48, use_bc=1,
side_cb=0x7f40ddb48cd0) D [06/Jul/2011:19:01:49 +0100] [Job 2] Read 8192
bytes of print data... D [06/Jul/2011:19:01:49 +0100] [Job 2] Wrote 8192
bytes of print data... D [06/Jul/2011:19:01:49 +0100] [Job 2] Read 8192
bytes of print data... D [06/Jul/2011:19:01:49 +0100] [Job 2] Wrote 8192
bytes of print data... D [06/Jul/2011:19:01:49 +0100] [Job 2] Read 8192
bytes of print data... D [06/Jul/2011:19:01:49 +0100] [Job 2] Set
job-printer-state-message to "Unable to write print data: Broken pipe",
current level=ERROR D [06/Jul/2011:19:01:49 +0100] [Job 2] Print file
sent, waiting for printer to f inish...
D [06/Jul/2011:19:01:49 +0100] [Job 2] Backend returned status 1 (failed)
D [06/Jul/2011:19:01:49 +0100] [Job 2] Printer stopped due to backend
errors; pl ease consult the error_log file for details.
D [06/Jul/2011:19:01:49 +0100] [Job 2] End of messages


But no real further info anywhere else which is making it a bit hard to
nail down what is going on.


I can print happily from an FC14 box on the same network.