luke-gru (Luke Gruber)

	open	closed	Total
Assigned issues	0	0	0
Reported issues	12	46	58

Project	Roles	Registered on
Ruby	Contributor	06/19/2025

09:12 PM Ruby Bug #21505: [Ractor] calling exit from non-main ractor will hang if main ractor waits on it: Yeah fair enough. It's probably not as complicated to fix as I initially thought. luke-gru (Luke Gruber)
07:58 PM Ruby Bug #21505 (Closed): [Ractor] calling exit from non-main ractor will hang if main ractor waits on it: ```ruby
r = Ractor.new do
exit
end
r.join # hangs
```
Should `exit` be allowed in ractors? It would be ea... luke-gru (Luke Gruber)
06:50 PM Ruby Bug #21504 (Open): [Ractor] Process.waitpid blocks ractor, new NT doesn't pick up other ractors: The following code hangs when run with `RUBY_MAX_CPU=2 make run`:
Note: `RUBY_MAX_CPU` is set to 2 so that only 1 ... luke-gru (Luke Gruber)

07:07 PM Ruby Bug #21398: Ractor.select hangs when multiple threads submit heavy jobs concurrently: I sent a [PR](https://github.com/ruby/ruby/pull/13682) for this but I don't know if this is the proper fix or if we s... luke-gru (Luke Gruber)

05:16 PM Ruby Bug #21446 (Open): StackOverflow when changing visibility in reopened refinement: ```ruby
class A
def a
:a
end
end
class B < A
end
module R
refine B do
private :a
end
en... luke-gru (Luke Gruber)

08:58 PM Ruby Bug #21441: SEGV during thread cleanup if profiler calls thread_profiles_frames at wrong time: I opened a PR [here](https://github.com/ruby/ruby/pull/13643).
This may need to be backported. luke-gru (Luke Gruber)
08:45 PM Ruby Bug #21441 (Closed): SEGV during thread cleanup if profiler calls thread_profiles_frames at wrong time: During thread cleanup, if a ruby sampling profiler calls `thread_profile_frames` at just the wrong time, the ec's sta... luke-gru (Luke Gruber)

09:55 PM Ruby Bug #19154: Specify require and autoload guarantees in ractors: To give an update, `require` and `autoload` now work inside ractors. I think this can be closed. luke-gru (Luke Gruber)
09:45 PM Ruby Bug #20346: FiberScheduler.unblock not called by Thread#join when Thread body contains Ractor.take: I created a PR for this: https://github.com/ruby/ruby/pull/13517 luke-gru (Luke Gruber)
04:20 PM Ruby Bug #21398: Ractor.select hangs when multiple threads submit heavy jobs concurrently: Thank you for the report.
Is it possible for you to try to install ruby-head (3.5.0dev) and try this script with the... luke-gru (Luke Gruber)

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