Ruby Issue Tracking System

10/26/2026

06:22 PM Ruby Bug #22472: Both yjit & zjit break ruby 4.0.9 build on x86_64

Thanks. I'm using mold 3.0 as our linker and this has been reported on the mold issue tracker already at https://github.com/rui314/mold/issues/1741 as affecting builds of ruby 4.0.7.
So this can be closed here. satadru (Satadru Pramanik)

10/25/2026

02:14 PM Ruby Bug #22472: Both yjit & zjit break ruby 4.0.9 build on x86_64

Using --disable-yjit and --disable-zjit fixes the build. satadru (Satadru Pramanik)

04:37 AM Ruby Bug #22472 (Third Party's Issue): Both yjit & zjit break ruby 4.0.9 build on x86_64

I see this error building ruby 4.0.9 with --enable-yjit on x86_64 with our Chromebrew builds.
Here is the error with RUST_BACKTRACE=full:
transdb.h updated linki... satadru (Satadru Pramanik)

04:34 AM Ruby Bug #22421: `RubyVM::YJIT.max_compile_time_ns=` aborts the process when YJIT is not enabled

I'm seeing this error message building with --enable-yjit on our x86_64 4.0.9 builds on Chromebrew:
transdb.h updated linking miniruby
thread '<unnamed>' (41405) pa... satadru (Satadru Pramanik)

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)