I secured evidence of broken caches being created occasionally by the fontconfig mmap snapshot in Fedora Rawhide. I won't have time to look into the exact nature of the problem today, but I have put a tarball up here: http://people.redhat.com/mclasen/bad-caches.tar.gz It also contains the fonts that were used to create the caches on an i686 machine. The output of fc-cat looks as if the charset fields contain garbage. Regards, Matthias
