Public bug reported:
Binary package hint: cups
We have some PDF files that jam the print queue on cups 1.4.6 (natty).
Identical print job is quickly printed on the same printer if it is printed
over a cups 1.4.4 (maverick). ps shows a process pstopdf (poppler-utils) that
runs infinite with 100% cpu usage. Changing the printer URL to use ipp: instead
of lp: does not change anything. The spool file looks ok to me: i can open it
in adobe reader. Cups log files do not show a single error line, even in debug
mode.
I also cannot convert the spool file manually to PostScript by pdf2ps
(ghostscript), it also hangs forever. Printer is a PostScript capable device.
So by upgrading from MAverick to Natty, the print server gets unusable. I will
roll back to Maverick for production use for now, but that does not mean that i
don't care about that issue.
The PDF i use was originally generated with OpenOffice3.1 and recreating it
with LibreOffice3.2 does not change anything. I could track it down to 5 pages
in the pdf. These pages contain some transparencies, this is just a hint on
where the bug is.
Unfortunately i have no idea how to further debug. Help appreciated.
cups:
Installed: 1.4.6-5ubuntu1
Candidate: 1.4.6-5ubuntu1
Version table:
*** 1.4.6-5ubuntu1 0
500 http://de.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages
100 /var/lib/dpkg/status
** Affects: cups (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/788642
Title:
pdf print job hangs abd blocks the queue
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