Issue #19271 has been updated by st0012 (Stan Lo). I can reproduce this without `IRB`: ``` $ RUBY_YJIT_ENABLE=1 ruby -e "require 'foo'" Ignoring debug-1.7.1 because its extensions are not built. Try: gem pristine debug --version 1.7.1 Ignoring rbs-2.8.2 because its extensions are not built. Try: gem pristine rbs --version 2.8.2 <internal:/Users/st0012/.rbenv/versions/3.2.0/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:85:in `require': cannot load such file -- foo (LoadError) from <internal:/Users/st0012/.rbenv/versions/3.2.0/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from -e:1:in `<main>' ``` Even without `RUBY_YJIT_ENABLE=1` too: (This one doesn't have message about `debug` because I installed it during testing) ``` $ ruby -e "require 'foo'" Ignoring rbs-2.8.2 because its extensions are not built. Try: gem pristine rbs --version 2.8.2 <internal:/Users/st0012/.rbenv/versions/3.2.0/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:85:in `require': cannot load such file -- foo (LoadError) from <internal:/Users/st0012/.rbenv/versions/3.2.0/lib/ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:85:in `require' from -e:1:in `<main>' ``` I think it's actually related to Ruby's `LoadError` and it's just happen that `IRB` triggers one during initialization. ---------------------------------------- Bug #19271: irb ignores rbs and debug with YJIT enabled https://bugs.ruby-lang.org/issues/19271#change-100829 * Author: olivierlacan (Olivier Lacan) * Status: Open * Priority: Normal * ruby -v: ruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin21] * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- Not sure this is a serious issue but when starting IRB with YJIT enabled this (potentially confusing) message is immediately printed: ``` $ RUBY_YJIT_ENABLE=1 irb Ignoring debug-1.7.1 because its extensions are not built. Try: gem pristine debug --version 1.7.1 Ignoring rbs-2.8.2 because its extensions are not built. Try: gem pristine rbs --version 2.8.2 irb(main):001:0> ``` This is on a fresh installation of Ruby 3.2.0 with an empty Gemfile in the directory. I haven't run gem pristine on any gem since I hadn't installed any gems after installing Ruby 3.2.0 here but FYI: ``` $ gem list | grep "rbs\|debug" debug (1.7.1) rbs (2.8.2) ``` This seems to suggest that C extensions weren't built for those gems when they were installed during the Ruby installation process. Just to be safe I checked and while I do use rbenv and ruby-build to compile and manage Rubies, I don't have a default gem installer set up so as far as I know these gems weren't installed by my system. -- https://bugs.ruby-lang.org/