Ruby Issue Tracking System

10/30/2025

12:00 PM Ruby Bug #21607: require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15

thesamesam (Sam James) wrote in #note-15:
> Is there a backtrace for this somewhere?
Ruby was segfaulting without creating a backtrace. satadru (Satadru Pramanik)

09/16/2025

10:46 PM Ruby Bug #21607: require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15

I can confirm that building with GCC 14 resolves the issue. So this seems like a problem with building ruby for i686 with GCC 15. satadru (Satadru Pramanik)

08:02 PM Ruby Bug #21607: require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15

Hmm. Ok, I will try rebuilding with GCC 14, in case this is possibly a regression in GCC. satadru (Satadru Pramanik)

07:56 PM Ruby Bug #21607: require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15

It doesn't appear to get to a backtrace:
```
chronos@buppie-i686:2.23 M58 /usr/local/lib/crew/packages (master <>|SPARSE)$ irb
irb(main):001> require 'concurrent-ruby'
Segmentation fault (core dumped) irb
chronos@buppie-i686:2.2... satadru (Satadru Pramanik)

06:51 PM Ruby Bug #21607: require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15

Hello all, a build from earlier this summer's 3.4 branch using the current bundled gems also gave the same error when I built that two days ago.
The only other difference might be that we are using GCC 15 now.
But I'd also note th... satadru (Satadru Pramanik)

04:37 PM Ruby Bug #21607: require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15

Our build run for this build, including make check is here:
https://github.com/chromebrew/chromebrew/actions/runs/17767133141/job/50493282824
I have attached this log with extraneous information edited out.
satadru (Satadru Pramanik)

04:24 PM Ruby Bug #21607: require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15

Our downstream PR/Issue is here: https://github.com/chromebrew/chromebrew/pull/12806 satadru (Satadru Pramanik)

04:21 PM Ruby Bug #21607 (Feedback): require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15

As mentioned at https://github.com/ruby/ruby/pull/14532#issuecomment-3288983469
chronos@buppie-i686:2.23 M58 /usr/local/lib/crew/packages (master >|SPARSE)$ ruby -e "require 'concurrent-ruby' ; puts 'success'"
Segmentation fault
... satadru (Satadru Pramanik)

05/30/2024

05:56 PM Ruby Bug #20447: Ruby 3.3.1 broken on i686 due to "incompatible pointer type" error

> This is presumably due to #20327 / https://github.com/ruby/ruby/pull/10332. There seems to be medicine in master commit:git|055613fd868a8c94e43893f8c58a00cdd2a81f6d or maybe the whole https://github.com/ruby/ruby/pull/10332, not sure... satadru (Satadru Pramanik)

02/10/2023

03:37 AM Ruby Revision 94aed6ec (git): [ruby/fileutils] Add mkdir_p to FileUtils.install

(https://github.com/ruby/fileutils/pull/104)
* Add mkdir_p to FileUtils.install
* Adjust raise message.
* adjust raise language
* handle trailing slash in dest
* simplify
* Add tests satadru (Satadru Pramanik)