https://bugs.kde.org/show_bug.cgi?id=366589

            Bug ID: 366589
           Summary: plasma-desktop crashes when cups service is disabled,
                    due to too manu open files
           Product: plasma4
           Version: 4.11.11
          Platform: RedHat RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: plasma-b...@kde.org
          Reporter: henri_38...@sfr.fr

Plaftorm: centos7.2

$ plasma-desktop -v
Qt: 4.8.5
KDE Development Platform: 4.14.8
Plasma Desktop Shell: 4.11.19

On centos7.2, plasma-desktop crashes when cups service is disabled.
It seems that "/etc/cups/client.conf" is open in a loop (by plasma-desktop
and/or KCupsConn), and never closed.
Once maximum opened file is reached, plasma-desktop crashes.

Reproducible: Always

Steps to Reproduce:
To reproduce the issue on centos7.2:
1/ disable cups service
2/ start KDE
3/ wait a bit
    type "lsof | grep cups | wc": you will see the number of entries growing
up.


Actual Results:  
After ~10 minutes, a simple click on the KDE menu will crash plasma-desktop.

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