Created attachment 123213 [details]
ls -l for updates-testing repo

Today several applications crashed while I was working, and it turned out this was due to / having 0 free space. Over time, PackageKit had created a package cache of about 10GB at /var/cache/PackageKit, mostly under /var/cache/PackageKit/metadata/updates/packages/ and /var/cache/PackageKit/metadata/updates-testing/packages/.

I'm using Fedora 23, and I haven't applied updates for about one month. But the cache contains packages with older versions than the ones I have installed. For example, I'm using xorg-x11-server-common-1.18.2-1, but the cache contains both versions 1.18.1-3 and 1.18.3-1 (see attached list for updates repo -- unfortunately, I've removed updates-testing packages before listing files). The cache even contains Fedora 22 packages from December (when I upgraded).


There seem to be two bugs here:
- Old packages should be removed when a newer version is installed
- The cache shouldn't grow without limit. In particular, downloads should stop when / is low on free space. I ended up in a situation where I couldn't even apply the updates due to lack of free space!