cups in Hardy leaks file descriptors: "too many open files"

[Matthias Kretz]

Binary package hint: cupsys

Description: Ubuntu 8.04.3 LTS
Release: 8.04

cupsys:
  Installed: 1.3.7-1ubuntu3.6
  Candidate: 1.3.7-1ubuntu3.6
  Version table:
 *** 1.3.7-1ubuntu3.6 0
        500 http://de.archive.ubuntu.com hardy-updates/main Packages
        500 http://security.ubuntu.com hardy-security/main Packages
        100 /var/lib/dpkg/status
     1.3.7-1ubuntu3 0
        500 http://de.archive.ubuntu.com hardy/main Packages

I have a cups server on one machine, connected to the printer via USB, and print jobs are always sent from other Linux computers in the network. This works for some time and then just stops until I restart CUPS like with:
% sudo /etc/init.d/cupsys restart
Often the document is then printed twice.

Today I investigated the error a bit and the CUPS error log shows:
D [18/Nov/2009:17:08:43 +0100] [Job 1615] job-sheets=none,none
D [18/Nov/2009:17:08:43 +0100] [Job 1615] banner_page = 0
D [18/Nov/2009:17:08:43 +0100] [Job 1615] argv[0]="Lexi"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] argv[1]="1615"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] argv[2]="mkretz"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] argv[4]="1"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] argv[5]="noCollate job-uuid=urn:uuid:dfa694b9-c90b-3989-7929-819576fe01f9 media=A4 number-up=2 outputorder=normal portrait sides=one-sided"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] argv[6]="/var/spool/cups/d01615-001"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[0]="CUPS_CACHEDIR=/var/cache/cups"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[1]="CUPS_DATADIR=/usr/share/cups"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[2]="CUPS_DOCROOT=/usr/share/cups/doc-root"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[3]="CUPS_FONTPATH=/usr/share/cups/fonts"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[4]="CUPS_REQUESTROOT=/var/spool/cups"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[5]="CUPS_SERVERBIN=/usr/lib/cups"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[6]="CUPS_SERVERROOT=/etc/cups"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[7]="CUPS_STATEDIR=/var/run/cups"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[8]="PATH=/usr/lib/cups/filter:/usr/bin:/usr/sbin:/bin:/usr/bin"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[9]="<email address hidden>"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[10]="SOFTWARE=CUPS/1.3.7"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[11]="TMPDIR=/var/spool/cups/tmp"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[12]="TZ=Europe/Berlin"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[13]="USER=root"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[14]="CUPS_SERVER=/var/run/cups/cups.sock"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[15]="CUPS_ENCRYPTION=IfRequested"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[16]="IPP_PORT=631"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[17]="CHARSET=utf-8"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[18]="LANG=en_US.UTF8"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[19]="PPD=/etc/cups/ppd/Lexi.ppd"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[20]="RIP_MAX_CACHE=8m"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[21]="CONTENT_TYPE=application/postscript"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[22]="DEVICE_URI=usb://Lexmark/Optra%20E310"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[23]="PRINTER=Lexi"
D [18/Nov/2009:17:08:43 +0100] [Job 1615] envp[24]="FINAL_CONTENT_TYPE=application/vnd.cups-postscript"
E [18/Nov/2009:17:08:43 +0100] [Job 1615] Unable to create job status pipes - Too many open files.

"Too many open files." The output of "sudo lsof | grep cups" is attached.

The problem started about 3-6 months ago. I assume it is a regression introduced with some update.

[Phillip Susi (psusi)]

Hardy has reached end of life, and this package is not present in later releases. Closing all related bugs.