With the latest update of texlive-core, some new hyphenation patterns cause TeX capacity to be exceeded when some formats are created. In the file /usr/share/texmf/web2c/texmf.cnf, change the line trie_size = 600000 to trie_size = 700000 Then run sudo fmtutil-sys --missing and everything will be fine. URL: http://www.archlinux.org/news/425/