Yes,
@{PROC}/*/cmdline r,
and resetting to enforce fixed the printing problem. For the record, the same 
solution also worked for a problem I was having with the dhclient apparmor 
profile that was stopping NetworkManager from connecting.

As for 17.10 Artful, I'm not entirely willing to do that just yet. I
upgraded to Zesty only to attempt to fix a Bluetooth audio problem (it
didn't) without testing the waters first, and got spanked for it. It's
taken me a week just to root out the critical bugs.

As for HPLIP systray, I feel it might be related, since systray will
work with apparmor set to complain on cups (both with and without the
profile edit), but not when set to enforce. Nonetheless, I will file a
bug with HPLIP.

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https://bugs.launchpad.net/bugs/1706052

Title:
  cupsd crashes with SIGSEGV on ubuntu 17.04 on start

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