+# These tests are actually not "unreliable" (different result for different
+# runs) but *invalid* (not measuring what they should measure).
+
+# seminar.sty uses Postscript specials or PGF
+# -> wrong output with DVI and PDF (ps2pdf) (de-placed landscape slides).
+export/examples/(|fr/)seminar_(dvi|pdf).*
+
+# Babel-Spanish uses UTF-8 encoded "unicode" strings if it detects LuaTeX
+# (with TeXLive 2016 also for XeTeX).
+# With LuaTeX and 8-bit TeX-fonts, e.g., the toc heading becomes
+# ÃŊndice instead of Índice.
+# The problem is generic to all Spanish documents but only manifests itself
+# if Babel strings with non-ASCII chars are deployed.
+# Set inputenc to utf8? (Changing the default in lib/languages
+# requires more tests for utf8 first.)
+export/examples/es/(ejemplo_con_lyx|tufte_book)_(pdf5|dvi3)_texF
+export/doc/es/.*_(pdf5|dvi3)_texF
+
+# Non-ASCII char in verbatim environment is dropped (with a warning when
+# doing this interactively) with ASCII (and hence also with XeTeX).
+export/doc/(|de/|es/|fr/)EmbeddedObjects_pdf4_texF
+
+# inputencoding="utf8-plain" with 8-bit TeX: non-ASCII characters are passed
+# as two 8-bit characters leading to garbage in the output
+export/export/latex/utf8-plain-with-tex-fonts_(dvi|pdf.?)
+
+# The following document mixes inTitle layouts and leads to
+# likely unintended output. See #10347
+export/export/mixing_inTitle_layouts_(pdf|dvi).*
+
+# Characters with accents are not output
+# Reported to LuaTeX mailing list here:
+# https://www.mail-archive.com/search?l=mid&q=20160831134006.4fewxothddqfeyw4%40steph
+# (not expecting much attention because DVI is not given high priority)
+export/doc/es/Customization_dvi3_systemF
+export/examples/(|es/)(europe|modern)CV_dvi3_systemF
+
+#9681 textgreek and textcyr also required for encodable characters
+# -> Latin transcription instead of Greek
+export/export/latex/unicodesymbols/008-greek-and-coptic_iso8859-7_pdf2