Issue #21880 has been updated by nobu (Nobuyoshi Nakada). Fixed by [ruby/pstore#36](https://github.com/ruby/pstore/pull/36). ---------------------------------------- Bug #21880: The ultra_safe mode of pstore bundled with Ruby 4.0 is broken. https://bugs.ruby-lang.org/issues/21880#change-116459 * Author: s3fxn (s3 fxn) * Status: Open * ruby -v: 4.0 * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN, 4.0: UNKNOWN ---------------------------------------- here is the reproduction code. ```console $ ruby -v ruby 4.0.1 (2026-01-13 revision e04267a14b) +PRISM [x86_64-linux] $ cat pstore.rb ``` ```ruby #!/usr/bin/env ruby require "bundler/inline" gemfile do source "https://rubygems.org" if ENV['DEBUG'] gem "pstore", "0.1.4" else gem "pstore" end end db = PStore.new("pstore.db") db.ultra_safe = true db.transaction do puts db["now"] = Time.now end ``` ```console $ ruby pstore.rb 2026-02-15 04:49:31 +0000 /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:676:in 'Ractor.make_shareable': Proc's self is not shareable: #<Proc:0x0000749f688df078 /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:673> (Ractor::IsolationError) from /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:676:in 'PStore#on_windows?' from /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:685:in 'PStore#save_data' from /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:575:in 'PStore#transaction' from pstore.rb:14:in '<main>' $ DEBUG=1 ruby pstore.rb 2026-02-15 04:49:53 +0000 ``` -- https://bugs.ruby-lang.org/

Issue #21880 has been updated by k0kubun (Takashi Kokubun). Backport changed from 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED, 4.0: REQUIRED to 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED, 4.0: DONE ruby_4_0 commit:901966d7627e89e1ee6e0e37f92e8ac8c0e6e3da. ---------------------------------------- Bug #21880: The ultra_safe mode of pstore bundled with Ruby 4.0 is broken. https://bugs.ruby-lang.org/issues/21880#change-116717 * Author: s3fxn (s3 fxn) * Status: Closed * ruby -v: 4.0 * Backport: 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED, 4.0: DONE ---------------------------------------- here is the reproduction code. ```console $ ruby -v ruby 4.0.1 (2026-01-13 revision e04267a14b) +PRISM [x86_64-linux] $ cat pstore.rb ``` ```ruby #!/usr/bin/env ruby require "bundler/inline" gemfile do source "https://rubygems.org" if ENV['DEBUG'] gem "pstore", "0.1.4" else gem "pstore" end end db = PStore.new("pstore.db") db.ultra_safe = true db.transaction do puts db["now"] = Time.now end ``` ```console $ ruby pstore.rb 2026-02-15 04:49:31 +0000 /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:676:in 'Ractor.make_shareable': Proc's self is not shareable: #<Proc:0x0000749f688df078 /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:673> (Ractor::IsolationError) from /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:676:in 'PStore#on_windows?' from /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:685:in 'PStore#save_data' from /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:575:in 'PStore#transaction' from pstore.rb:14:in '<main>' $ DEBUG=1 ruby pstore.rb 2026-02-15 04:49:53 +0000 ``` -- https://bugs.ruby-lang.org/

Issue #21880 has been updated by nagachika (Tomoyuki Chikanaga). Backport changed from 3.2: WONTFIX, 3.3: DONE, 3.4: REQUIRED, 4.0: DONE to 3.2: WONTFIX, 3.3: DONE, 3.4: DONE, 4.0: DONE ruby_3_4 commit:55f7432b303c70f2f0ee6fa4659f6a366292dc3e. ---------------------------------------- Bug #21880: The ultra_safe mode of pstore bundled with Ruby 4.0 is broken. https://bugs.ruby-lang.org/issues/21880#change-117245 * Author: s3fxn (s3 fxn) * Status: Closed * ruby -v: 4.0 * Backport: 3.2: WONTFIX, 3.3: DONE, 3.4: DONE, 4.0: DONE ---------------------------------------- here is the reproduction code. ```console $ ruby -v ruby 4.0.1 (2026-01-13 revision e04267a14b) +PRISM [x86_64-linux] $ cat pstore.rb ``` ```ruby #!/usr/bin/env ruby require "bundler/inline" gemfile do source "https://rubygems.org" if ENV['DEBUG'] gem "pstore", "0.1.4" else gem "pstore" end end db = PStore.new("pstore.db") db.ultra_safe = true db.transaction do puts db["now"] = Time.now end ``` ```console $ ruby pstore.rb 2026-02-15 04:49:31 +0000 /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:676:in 'Ractor.make_shareable': Proc's self is not shareable: #<Proc:0x0000749f688df078 /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:673> (Ractor::IsolationError) from /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:676:in 'PStore#on_windows?' from /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:685:in 'PStore#save_data' from /home/s3fxn/.rubies/ruby-4.0.1/lib/ruby/gems/4.0.0/gems/pstore-0.2.0/lib/pstore.rb:575:in 'PStore#transaction' from pstore.rb:14:in '<main>' $ DEBUG=1 ruby pstore.rb 2026-02-15 04:49:53 +0000 ``` -- https://bugs.ruby-lang.org/