[cups.development] [RFE] STR #2181: EACCES in CUPS backends very difficult to diagnose

[Till Kamppeter]

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[STR New]

See

https://launchpad.net/ubuntu/+source/cupsys/+bug/76078

"When there is a problem with device permissions in the usb backend (and
potentially with other CUPS backends), such as Ubuntu bug 76077
(https://launchpad.net/bugs/76077), this does not result in any failure or
error message. Jobs sit in the print queue in job-printing state and stay
there indefinitely. No error is logged in CUPS error_log, syslog or
displayed to the user at any time. The backend can be seen running, but
not doing much.

This seems needlessly complex to diagnose using strace on the backend. It
should simply fail and report an error to the user so that the problem can
be fixed."

Link: http://www.cups.org/str.php?L2181
Version: 1.2-feature