Red Hat Bugzilla – Bug 171142
remote printer jobs are out of order or duplicated
Last modified: 2007-11-30 17:07:21 EST
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Description of problem:
When sending multiple (10-20) small (1-2K) print jobs to a remote CUPS printer (epson dot matrix) via IPP using lpr, jobs print out-of-order, and intermittently duplicated.
Problem does not occur when printer is connected to local port, or when lpd protocol is used.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Configure a local printer on a machine
2. Allow CUPS to discover it on another machine
3. Send 10-20 small print jobs to the remote printer
Actual Results: Multiple test runs will produce different output order each time.
Expected Results: Output should be identical.
LPRng does not exhibit this behaviour.
Using lpd protocol with cups is too slow to be an acceptable workaround.
Thanks for your report. I would like to know more information:
1. What sort of jobs are these? PostScript jobs, or text files, or something else?
2. How precisely are you submitting the jobs? One long lpr command line, or
multiple single-file lpr command lines? All from the same machine?
3. Does cups-1.1.22-0.rc1.9.8 produce the same behaviour? (See
(A1&2) We're sending multi-line text-only print jobs with multiple calls to lpr.
We've managed to reproduce the problem with a simple script -
@ x = 0
set printqueue = "fsp2"
while($x < 25)
echo "Print job $x" > $file
lpr -r -P$printqueue $file
@ x ++
(A3) Yes, I tried upgrading to the CUPS in RHEL4U2; There was no change in
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Hat Enterprise Linux maintenance release. Product Management has requested
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An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
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