Bug#764253: system-config-printer: Creates millions of ppd symlinks

[Till Kamppeter]

I have forwarded this report to Tim Waugh from Red Hat, original author
of system-config-printer and he has answered me the following:

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> can you check this ppdcache.py problem mentioned here?

I've committed a change which should stop the looping by failing the
call on IOError.
https://git.fedorahosted.org/cgit/system-config-printer.git/commit/?h=1.4.x&id=9a81dd1de3afaf30eec92045429029103823b577

> And why is scp-dbus-service doing something when a job is printed?

You're in a better position to find that out. It doesn't do that for me.

Run "scp-dbus-service --debug" before printing, and see which D-Bus call
it receives. Or watch dbus-monitor --session.

By the way, you know about CUPS STR #4500, right..?
  https://cups.org/str.php?L4500
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For the two bugs you mentioned there are fixes now:

> Thus I think there are two bugs here:
>  * cups should not create files with wrong permissions in /etc/cups/ppd

CUPS STR #4500: https://cups.org/str.php?L4500

>  * scp-dbus-service should not start an infinite loop creating millions
>    of symlinks in /tmp just because the permissions in /etc/cups/ppd
>    are wrong

https://git.fedorahosted.org/cgit/system-config-printer.git/commit/?h=1.4.x&id=9a81dd1de3afaf30eec92045429029103823b577

The only strange thing is that scp-dbus-service gets triggered by simply
printing. So can you please try what Tim suggests:

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Run "scp-dbus-service --debug" before printing, and see which D-Bus call
it receives. Or watch dbus-monitor --session.
----------

and post your results here? Thanks.

   Till