Ruby Issue Tracking System

05/06/2026

12:11 AM Ruby Bug #22057 (Assigned): test-bundler failed

test-bundler failed just one example (./spec/bundler/bundler/cli_common_spec.rb:7).
However, test-bundler-parallel is successful.
I think this is happening because while test-bundler includes the `--disable-gems` option, it is not sp... tikkss (Tsutomu Katsube)

05/01/2026

12:01 PM Ruby Feature #21953: Allow accessing unshareable objects within a Ractor-local Ruby Box

Eregon (Benoit Daloze) wrote in #note-2:
> Did you measure the difference in memory usage?
> ...
Thanks for your reply. No, I didn't. But I took this opportunity to give it a try.
I increased the number of classes with three methods to ... tikkss (Tsutomu Katsube)

04/27/2026

09:37 PM Ruby Feature #21953: Allow accessing unshareable objects within a Ractor-local Ruby Box

I describe the use case of test-unit.
Now, we are implementing `Ractor` based parallel test runner. The tests
are run on non-main ractors.
We have met a lot of `Ractor::IsolationError`. Each time, We have tried
using `freeze` or ... tikkss (Tsutomu Katsube)

04/10/2026

09:34 PM Ruby Bug #21991 (Closed): `$!` stays as the first exception in Ruby Box

Description
---
When Ruby Box is enabled (`RUBY_BOX=1`), `$!` inside `rescue` does not change after the first exception.
`$!` is expected to show the exception for each `rescue` block, but it always shows the first one.
Steps t... tikkss (Tsutomu Katsube)

03/15/2026

08:53 AM Ruby Feature #21953 (Open): Allow accessing unshareable objects within a Ractor-local Ruby Box

### Status
Currently, non-main ractors prohibit access to the following objects to prevent data races:
* Global variables
* Class variables
* Unshareable class instance variables
* Unshareable constants
### Proposal
... tikkss (Tsutomu Katsube)

01/05/2026

04:48 AM Ruby Revision 99bd18b5 (git): Unskip RBS test on Windows for NoMemoryError workaround

test-unit 3.7.7 has been fixed this problem.
See also:
https://github.com/test-unit/test-unit/releases/tag/3.7.7 tikkss (Tsutomu Katsube)

10/22/2024

09:19 PM Ruby Bug #20796: Segmentation fault in rubyzip tests with ruby 3.4.0-preview2~659 e7cb70be4e on x86_64-darwin24

Though this is just a bug report, it's my first contribution to Ruby Core.
I'm excited to know some new words such as off-one-by bug, valgrind, miniruby, OP reports that were unfamiliar to me.
Thanks! tikkss (Tsutomu Katsube)

10/21/2024

09:22 PM Ruby Bug #20796: Segmentation fault in rubyzip tests with ruby 3.4.0-preview2~659 e7cb70be4e on x86_64-darwin24

Thank you very much!
I have confirmed a83c91dd7a addresses the issue on Intel mac:
```console
$ ruby -v
ruby 3.4.0dev (2024-10-21T11:40:42Z master a83c91dd7a) +PRISM [x86_64-darwin24]
$ bundle exec rake
ostruct was loaded fro... tikkss (Tsutomu Katsube)

10/20/2024

11:17 AM Ruby Bug #20796: Segmentation fault in rubyzip tests with ruby 3.4.0-preview2~659 e7cb70be4e on x86_64-darwin24

> This PR seems relevant, and fits in the (rather large) preview1/preview2 window: https://github.com/ruby/ruby/pull/11519
Thanks for your sharing.
According to git bisect between preview1 and preview2, it is triggered since ruby 3... tikkss (Tsutomu Katsube)

10/18/2024

05:15 PM Ruby Revision f370a315 (git): [ruby/irb] Suppress "literal string will be frozen in the future"

warning
(https://github.com/ruby/irb/pull/1019)
* Suppress "literal string will be frozen in the future" warning
Before change:
```console
$ ruby -W -I lib -e 'require "irb"; IRB.setup(nil); IRB::Irb.new.build_statement("1 + 2")'
/Use... tikkss (Tsutomu Katsube)