|Subject:||Concurrency issues due to use of "PL_keyword_plugin"|
We tried to use an module which was backed by Keyword::Simple in Perl 6/Raku by using Inline::Perl5. There we tried to use more than one Inline::Perl5 instance and run into some concurrency issues. This was reported to Inline::Perl5 ( Show quoted text) were it came to the conclusion that the issue is in Keyword::Simple:
> It uses PL_keyword_plugin of which the perlapi documentation says "Direct access to "PL_keyword_plugin" should be avoided" (due to threading issues).