Dear luatex masters! I am trying to hunt down a build failure on Debian. We are building of the sources from svn 44572, which is practically the released version of TL2017. When building normally nothing happens, all works out well. But when building using the Debian rules files I see an error on testing in luaimage.test, namely at the first line: ./luatex -ini luaimage || exit 1 The log file does not contain anything but: ... This is LuaTeX, Version 1.0.4 (TeX Live 2017/Debian) (INITEX) restricted system commands enabled. ../../../texk/web2c/luatexdir/tests/luaimage.tex (../../../texk/web2c/tests/basic.tex Preloading the plain format: codes, registers, parameters, macros, math definitions, output routines, hyphenation)) Beginning to dump on file luaimage.fmt (format=luaimage 2017.8.7) 2374 strings using 6763 bytes 10085 memory locations dumped; current usage is 132&5003 1335 multiletter control sequences \font\nullfont=nullfont 0 preloaded fonts No pages of output. Transcript written on luaimage.log. Segmentation fault Now the funny part is the "Segmentation fault" at the end ...which is really a pain, because everything worked out properly. I have put into the luaimage.test file a line `set' to see the complete environment, and copied it. After some adaptions (see below) and running it I get no errors and successful builds The only things I changed are converting local path (../../../texk/web2c/luatexdir/) to absoilute path (/home/norbert/.......). Nothing else. And with this minuscule change I get a proper compilation. So I am really completely surprised about what could go wrong, and why luatex does not report any errors. Note that I also added --debug-format to the failing luatex invocation, but there was no change in output. Does anyone have any idea how to debug this? Why does luatex properly dump a format and then die? Thanks for any suggestions! (and please keep Cc) Norbert -- PREINING Norbert http://www.preining.info Accelia Inc. + JAIST + TeX Live + Debian Developer GPG: 0x860CDC13 fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13