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Fix GC.stress for object allocation

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GC stress was broken for object allocation.
This commit is contained in:
Peter Zhu 2026-07-22 16:28:58 -04:00
parent 2641d40c38
commit 62f325a955
Notes: git 2026-07-23 13:32:37 +00:00 
Merged: https://github.com/ruby/ruby/pull/18013
2 changed files with 17 additions and 0 deletions
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6
gc/default/default.c
View File

@ -2759,6 +2759,12 @@ newobj_bump_pointer_miss(rb_objspace_t *objspace, rb_ractor_newobj_cache_t *gc_c
static VALUE
newobj_alloc(rb_objspace_t *objspace, rb_ractor_newobj_cache_t *gc_cache, size_t heap_idx, bool vm_locked)
{
if (RB_UNLIKELY(ruby_gc_stressful)) {
if (!garbage_collect(objspace, GPR_FLAG_NEWOBJ)) {
rb_memerror();
}
}
VALUE obj = ractor_cache_allocate_slot(objspace, gc_cache, heap_idx);
if (RB_UNLIKELY(obj == Qfalse)) {

11
test/ruby/test_gc.rb
View File

@ -851,6 +851,17 @@ class TestGc < Test::Unit::TestCase
assert_nil(GC.verify_internal_consistency)
end
def test_gc_stress_on_obj_allocation
EnvUtil.under_gc_stress do
count = GC.count
iters = 100
iters.times do
Object.new
end
assert_operator(GC.count - count, :>=, iters)
end
end
def test_gc_stress_on_realloc
assert_normal_exit(<<-'end;', '[Bug #9859]')
class C