Hi there, while building the LilyPond regression test in clean container with parallelism, I am seeing file corruption errors from reading back TeX .fmt files.
AFAICT, the various flavors of TeX cache .fmt files in ~/.texlive2019. This file is re-created when it doesn't exist, but no care is taken multiple parallel invocations of the same program do not tread on each others feet. Either some invocations see a half-finished version of the file, or two invocations write content to the same file. -- Han-Wen Nienhuys - hanw...@gmail.com - http://www.xs4all.nl/~hanwen
