Hi, to fix https://www.cups.org/str.php?L4391 I have removed debian/patches/fix-race-condition-in-cupsdoiorequest.patch in Ubuntu's CUPS package on the GIT (released as 1.7.1-5ubuntu9). Also it is told in https://www.cups.org/str.php?L4386 that the fix does not actually work. So I recommend you to do this in Debian as well. Till