As per summary. Line 845 of /usr/sbin/etc-update (in portage v2.3.0_rc1) just calls exit 0 if preen succeeds, bypassing the tidy up of tmp dir. This leads to a build up of junk in /var/tmp akira ~ # ls -d /var/tmp/etc-update-* /var/tmp/etc-update-11490 /var/tmp/etc-update-15218 (and many more) Reproducible: Always Steps to Reproduce: 1. rm -r /var/tmp/etc-update-* 2. etc-update --preen Scanning Configuration files... 3.ls -d /var/tmp/etc-update-* /var/tmp/etc-update-14840 Suggest something like this at line 845 instead. ${PREEN} && die "Preen success" 0 Using die here seems a bit dirty, but that's where the current clean up is done.
