From: "byroot (Jean Boussier)" Date: 2021-10-30T19:54:31+00:00 Subject: [ruby-core:105877] [Ruby master Bug#18277] buffer error (Zlib::BufError) in Zlib::Deflate#deflate when using MJIT Issue #18277 has been updated by byroot (Jean Boussier). I believe it's a duplicate of [Bug #18058] ---------------------------------------- Bug #18277: buffer error (Zlib::BufError) in Zlib::Deflate#deflate when using MJIT https://bugs.ruby-lang.org/issues/18277#change-94418 * Author: Eregon (Benoit Daloze) * Status: Open * Priority: Normal * ruby -v: ruby 3.1.0dev (2021-10-23T04:38:40Z master cda8bc3657) +JIT [x86_64-linux] * Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN ---------------------------------------- To repro: ``` $ git clone https://github.com/Shopify/yjit-bench.git $ cd yjit-bench $ ruby --jit -I./harness benchmarks/hexapdf/benchmark.rb ... Bundle complete! 1 Gemfile dependency, 4 gems now installed. Use `bundle info [gemname]` to see where a bundled gem is installed. /home/eregon/prefix/ruby-master/lib/ruby/gems/3.1.0/gems/hexapdf-0.16.0/lib/hexapdf/filter/flate_decode.rb:94:in `deflate': buffer error (Zlib::BufError) from /home/eregon/prefix/ruby-master/lib/ruby/gems/3.1.0/gems/hexapdf-0.16.0/lib/hexapdf/filter/flate_decode.rb:94:in `block in encoder' ``` This fails every time with MJIT, and it does not fail without MJIT or with YJIT (on ruby master @ cda8bc3657). It fails on master MJIT: `ruby 3.1.0dev (2021-10-23T04:38:40Z master cda8bc3657) +JIT [x86_64-linux]` It works with 3.0.2 MJIT: `ruby 3.0.2p107 (2021-07-07 revision 0db68f0233) +JIT [x86_64-linux]`. -- https://bugs.ruby-lang.org/ Unsubscribe: