mame (Yusuke Endoh)

	open	closed	Total
Assigned issues	2	148	150
Reported issues	15	345	360

Project	Roles	Registered on
Ruby	Committer, Security team, Infrastructure team	05/28/2008

04:59 AM Ruby Bug #22070: `Thread.each_caller_location(1, 1)` segfaults when called from a cfunc: Confirmed, and the fix looks good to me.
Just one correction: Ruby 3.4 is affected too.
```
$ RBENV_VERSION=3.4.7 ruby -e '[1].each { Thread.each_caller_location(1, 1) { |loc| loc.label } }'
-e:1: [BUG] Segmentation fault at 0x00... mame (Yusuke Endoh)

07:52 AM Ruby Feature #21953 (Assigned): Allow accessing unshareable objects within a Ractor-local Ruby Box: mame (Yusuke Endoh)
07:49 AM Ruby Bug #22015 (Assigned): Success without RUBY_BOX=1, Failure with RUBY_BOX=1: mame (Yusuke Endoh)
07:24 AM Ruby Misc #21916 (Closed): DevMeeting before RubyKaigi 2026: https://github.com/ruby/dev-meeting-log/blob/master/2026/DevMeeting-2026-04-21.md mame (Yusuke Endoh)
07:08 AM Ruby Bug #21989 (Assigned): Fiber initialization failure on WASI/ruby.wasm raises TypeError instead of FiberError: mame (Yusuke Endoh)

04:29 AM Ruby Feature #21998: Add {Method,UnboundMethod,Proc}#source_range: Eregon (Benoit Daloze) wrote in #note-7:
> We can easily compute the end of heredoc if the API returns `}`
How do you determine whether a block contains a heredoc? Consider:
- `{ <<X }`: heredoc
- `{ x<<X }`: shift operator
- `{... mame (Yusuke Endoh)

02:39 PM Ruby Feature #21998: Add {Method,UnboundMethod,Proc}#source_range: @matz What should the following return?
```ruby
f = proc { <<END }
xxx
END
f.source_range #=> Start position: from the `p` of `proc`? Or from the `{`?
#=> End position: up to the `}`? Or up to the `D` of `END`?
... mame (Yusuke Endoh)

05:48 AM Ruby Feature #21795: Methods for retrieving ASTs: As matz pointed out in #note-11, the ABI versioning approach would leave master in a routinely broken state. As a maintainer of error_highlight, I cannot accept this. Not being able to verify error_highlight's behavior against code using... mame (Yusuke Endoh)

09:46 AM Ruby Bug #21977 (Assigned): Ruby::Box crash with `RUBY_BOX=1` via `Binding` refinement, `UnboundMethod#bind_call`, and `Symbol#to_proc`: mame (Yusuke Endoh)

06:18 AM Ruby Bug #21969 (Third Party's Issue): fork() + Socket.getaddrinfo() triggers SIGSEGV/SIGABRT via libsystem_trace.dylib on macOS 26 (darwin25) x86_64 and ARM64: #21790 also identifies `_os_log_preferences_refresh` in `libsystem_trace.dylib` as the crash site (see note #4). The NAT64 code path (`_gai_nat64_second_pass`) appears higher in the call stack, but the actual fault is the same stale shar... mame (Yusuke Endoh)

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