Debugging cups problems

[Tim Waugh]

Hi Alan,

On Fri, 2011-07-08 at 13:06 +0100, Alan Cox wrote:
> D [06/Jul/2011:19:01:49 +0100] [Job 2] backendRunLoop(print_fd=0, device_fd=5, snmp_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 finish...
> 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; please consult the error_log file for details.
> D [06/Jul/2011:19:01:49 +0100] [Job 2] End of messages

The socket backend is getting EPIPE when trying to send data to the
printer.  Probably the printer sent a RST?

Here's a wiki page about debugging printing problems:
  https://fedoraproject.org/wiki/How_to_debug_printing_problems

Tim.
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