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01:10 AM Ruby Revision 1f3a2c5d (git): Fix GC compaction for compare-by-identity sets

[Backport #22064]
Compare-by-identity sets use the address for hashing, so we must pin it
so the object does not move in GC compaction. Objects in a compare-by-identity
set is not currently pinned, causing the set to be broken if the ob... peterzhu2118 (Peter Zhu)

01:08 AM Ruby Revision 647575ea (git): [Backport #22072] Fix rb_cvar_set for multi-Ractor

rb_cvar_set breaks the RCLASS_CVC_TBL because it creates a new cvc_tbl but
forgets to copy the contents over. This causes the following script to
crash:
r = Ractor.new {}
module Foo
def self.foo = @@foo
end
Foo.c... peterzhu2118 (Peter Zhu)

12:25 AM Ruby Revision 7012f365 (git): [DOC] Add comments for return values of Pathname examples

peterzhu2118 (Peter Zhu)

05/20/2026

11:48 PM Ruby Revision eeed9ea3 (git): Move rb_gc_update_set_refs into gc.c

The code is in gc/gc.h but it is not used outside of gc.c, so we can move
it there. peterzhu2118 (Peter Zhu)

01:10 AM Ruby Revision 8638931d (git): [ruby/mmtk] Fix compiler warnings for noreturn

gc/mmtk/mmtk.c:480:1: warning: function 'rb_mmtk_gc_thread_bug' could be declared with attribute 'noreturn' [-Wmissing-noreturn]
480 | {
| ^
gc/mmtk/mmtk.c:510:1: warning: function 'rb_mmtk_mutator_thread_panic_handle... peterzhu2118 (Peter Zhu)

05/18/2026

04:59 PM Ruby Revision 87117740 (git): [DOC] Improve docs for Binding#eval

peterzhu2118 (Peter Zhu)

05/17/2026

08:20 PM Ruby Revision cfff91a3 (git): [ruby/mmtk] Move rb_gc_obj_suffix to gc.h

https://github.com/ruby/mmtk/commit/40053354bd peterzhu2118 (Peter Zhu)

01:10 PM Ruby Bug #22072 (Closed): [BUG] should have cvar cache entry

Applied in changeset commit:git|6bc1aa31ccf39837bb0678da093b82f86a6534eb.
----------
[Bug #22072] Fix rb_cvar_set for multi-Ractor
rb_cvar_set breaks the RCLASS_CVC_TBL because it creates a new cvc_tbl but
forgets to copy the contents ... peterzhu2118 (Peter Zhu)

02:08 AM Ruby Bug #22072: [BUG] should have cvar cache entry

Thank you for this bug report. Using the seed in the crashing runs you have linked, I was able to reliably reproduce the issue. I was able to [create a minimal reproduction and have a fix in this PR](https://github.com/ruby/ruby/pull/170... peterzhu2118 (Peter Zhu)

01:09 PM Ruby Revision 6bc1aa31 (git): [Bug #22072] Fix rb_cvar_set for multi-Ractor

rb_cvar_set breaks the RCLASS_CVC_TBL because it creates a new cvc_tbl but
forgets to copy the contents over. This causes the following script to
crash:
r = Ractor.new {}
module Foo
def self.foo = @@foo
end
Foo.c... peterzhu2118 (Peter Zhu)