turkdevops · pull · Jan 9, 2026 · Jan 9, 2026 · Jan 9, 2026 · Jan 8, 2026
diff --git a/enumerator.c b/enumerator.c
@@ -18,6 +18,7 @@
 #include <float.h>
 #endif
 
+#include <limits.h>
 #include "id.h"
 #include "internal.h"
 #include "internal/class.h"
@@ -4008,7 +4009,7 @@ arith_seq_take(VALUE self, VALUE num)
             ary = rb_ary_new_capa((n < len) ? n : len);
             while (n > 0 && i < end) {
                 rb_ary_push(ary, LONG2FIX(i));
-                if (i + unit < i) break;
+                if (i > LONG_MAX - unit) break;
                 i += unit;
                 --n;
             }
@@ -4021,7 +4022,7 @@ arith_seq_take(VALUE self, VALUE num)
             ary = rb_ary_new_capa((n < len) ? n : len);
             while (n > 0 && i > end) {
                 rb_ary_push(ary, LONG2FIX(i));
-                if (i + unit > i) break;
+                if (i < LONG_MIN - unit) break;
                 i += unit;
                 --n;
             }

diff --git a/ext/-test-/stack/stack.c b/ext/-test-/stack/stack.c
@@ -2,7 +2,7 @@
 #include "internal/string.h"
 
 static VALUE
-stack_alloca_overflow(VALUE self)
+stack_overflow(VALUE self)
 {
     size_t i = 0;
 
@@ -30,6 +30,6 @@ asan_p(VALUE klass)
 void
 Init_stack(VALUE klass)
 {
-    rb_define_singleton_method(rb_cThread, "alloca_overflow", stack_alloca_overflow, 0);
+    rb_define_singleton_method(rb_cThread, "stack_overflow", stack_overflow, 0);
     rb_define_singleton_method(rb_cThread, "asan?", asan_p, 0);
 }
diff --git a/gc/mmtk/mmtk.c b/gc/mmtk/mmtk.c
@@ -83,6 +83,12 @@ RB_THREAD_LOCAL_SPECIFIER VALUE marking_parent_object;
 # error We currently need language-supported TLS
 #endif
 
+#ifdef MMTK_DEBUG
+# define MMTK_ASSERT(expr, ...) RUBY_ASSERT_ALWAYS(expr, #expr RBIMPL_VA_OPT_ARGS(__VA_ARGS__))
+#else
+# define MMTK_ASSERT(expr, ...) ((void)0)
+#endif
+
 #include <pthread.h>
 
 static void
@@ -975,6 +981,9 @@ rb_gc_impl_writebarrier(void *objspace_ptr, VALUE a, VALUE b)
     }
 #endif
 
+    MMTK_ASSERT(BUILTIN_TYPE(a) != T_NONE);
+    MMTK_ASSERT(BUILTIN_TYPE(b) != T_NONE);
+
     mmtk_object_reference_write_post(cache->mutator, (MMTk_ObjectReference)a);
 }
 

diff --git a/test/-ext-/stack/test_stack_overflow.rb b/test/-ext-/stack/test_stack_overflow.rb
@@ -17,7 +17,7 @@ def test_overflow
       require '-test-/stack'
 
       assert_raise(SystemStackError) do
-        Thread.alloca_overflow
+        Thread.stack_overflow
       end
     RUBY
   end
@@ -29,7 +29,7 @@ def test_thread_stack_overflow
 
       thread = Thread.new do
         Thread.current.report_on_exception = false
-        Thread.alloca_overflow
+        Thread.stack_overflow
       end
 
       assert_raise(SystemStackError) do
@@ -44,7 +44,7 @@ def test_fiber_stack_overflow
       GC.disable
 
       fiber = Fiber.new do
-        Thread.alloca_overflow
+        Thread.stack_overflow
       end
 
       assert_raise(SystemStackError) do

diff --git a/test/-ext-/tracepoint/test_tracepoint.rb b/test/-ext-/tracepoint/test_tracepoint.rb
@@ -83,7 +83,7 @@ def run(hook)
   end
 
   def test_teardown_with_active_GC_end_hook
-    assert_separately([], 'require("-test-/tracepoint"); Bug.after_gc_exit_hook = proc {}; GC.start')
+    assert_ruby_status([], 'require("-test-/tracepoint"); Bug.after_gc_exit_hook = proc {}; GC.start')
   end
 
 end
diff --git a/test/objspace/test_objspace.rb b/test/objspace/test_objspace.rb
@@ -143,7 +143,7 @@ def test_reachable_objects_from
   def test_reachable_objects_during_iteration
     omit 'flaky on Visual Studio with: [BUG] Unnormalized Fixnum value' if /mswin/ =~ RUBY_PLATFORM
     opts = %w[--disable-gem --disable=frozen-string-literal -robjspace]
-    assert_separately opts, "#{<<-"begin;"}\n#{<<-'end;'}"
+    assert_ruby_status opts, "#{<<-"begin;"}\n#{<<-'end;'}"
     begin;
       ObjectSpace.each_object{|o|
         o.inspect
@@ -179,7 +179,7 @@ def test_reachable_objects_size
   end
 
   def test_trace_object_allocations_stop_first
-    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    assert_ruby_status([], "#{<<~"begin;"}\n#{<<~'end;'}")
     begin;
       require "objspace"
       # Make sure stopping before the tracepoints are initialized doesn't raise. See [Bug #17020]

diff --git a/test/openssl/test_fips.rb b/test/openssl/test_fips.rb
@@ -30,7 +30,7 @@ def test_fips_mode_get_is_false_on_fips_mode_disabled
   def test_fips_mode_is_reentrant
     return if aws_lc? # AWS-LC's FIPS mode is decided at compile time.
 
-    assert_separately(["-ropenssl"], <<~"end;")
+    assert_ruby_status(["-ropenssl"], <<~"end;")
       OpenSSL.fips_mode = false
       OpenSSL.fips_mode = false
     end;

diff --git a/test/ripper/assert_parse_files.rb b/test/ripper/assert_parse_files.rb
@@ -40,6 +40,7 @@ class Parser < Ripper
           end
         }
       end
+      assert(true) if scripts.empty?
     end;
   end
 end
diff --git a/test/ruby/test_autoload.rb b/test/ruby/test_autoload.rb
@@ -574,7 +574,7 @@ def test_autoload_parallel_race
       autoload_path = File.join(tmpdir, "autoload_parallel_race.rb")
       File.write(autoload_path, 'module Foo; end; module Bar; end')
 
-      assert_separately([], <<-RUBY, timeout: 100)
+      assert_ruby_status([], <<-RUBY, timeout: 100)
         autoload_path = #{File.realpath(autoload_path).inspect}
 
         # This should work with no errors or failures.
@@ -617,6 +617,10 @@ module SomeNamespace
   private
 
   def assert_separately(*args, **kwargs)
-    super(*args, **{ timeout: 60 }.merge(kwargs))
+    super(*args, timeout: 60, **kwargs)
+  end
+
+  def assert_ruby_status(*args, **kwargs)
+    super(*args, timeout: 60, **kwargs)
   end
 end
diff --git a/test/ruby/test_gc_compact.rb b/test/ruby/test_gc_compact.rb
@@ -364,7 +364,7 @@ def add_ivars
   def test_compact_objects_of_varying_sizes
     omit if GC::INTERNAL_CONSTANTS[:SIZE_POOL_COUNT] == 1
 
-    assert_separately([], "#{<<~"begin;"}\n#{<<~"end;"}", timeout: 10)
+    assert_ruby_status([], "#{<<~"begin;"}\n#{<<~"end;"}", timeout: 10)
     begin;
       $objects = []
       160.times do |n|

diff --git a/test/ruby/test_lambda.rb b/test/ruby/test_lambda.rb
@@ -163,7 +163,7 @@ def self.b
   end
 
   def test_proc_inside_lambda_toplevel
-    assert_separately [], <<~RUBY
+    assert_ruby_status [], <<~RUBY
       lambda{
         $g = proc{ return :pr }
       }.call

diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
@@ -583,7 +583,7 @@ def b; 2 end
   end
 
   def test_gc_prepend_chain
-    assert_separately([], <<-EOS)
+    assert_ruby_status([], <<-EOS)
       10000.times { |i|
         m1 = Module.new do
           def foo; end
@@ -3073,7 +3073,7 @@ def test_return_value_of_define_singleton_method
   end
 
   def test_prepend_gc
-    assert_separately [], %{
+    assert_ruby_status [], %{
       module Foo
       end
       class Object

diff --git a/test/ruby/test_optimization.rb b/test/ruby/test_optimization.rb
@@ -946,14 +946,14 @@ def foo &b
   end
 
   def test_peephole_optimization_without_trace
-    assert_separately [], <<-END
+    assert_ruby_status [], <<-END
       RubyVM::InstructionSequence.compile_option = {trace_instruction: false}
       eval "def foo; 1.times{|(a), &b| nil && a}; end"
     END
   end
 
   def test_clear_unreachable_keyword_args
-    assert_separately [], <<-END, timeout: 60
+    assert_ruby_status [], <<-END, timeout: 60
       script =  <<-EOS
         if true
         else
@@ -1080,7 +1080,7 @@ def test_optimized_rescue
   class Objtostring
   end
 
-  def test_objtostring
+  def test_objtostring_immediate
     assert_raise(NoMethodError){"#{BasicObject.new}"}
     assert_redefine_method('Symbol', 'to_s', <<-'end')
       assert_match %r{\A#<Symbol:0x[0-9a-f]+>\z}, "#{:foo}"
@@ -1094,11 +1094,17 @@ def test_objtostring
     assert_redefine_method('FalseClass', 'to_s', <<-'end')
       assert_match %r{\A#<FalseClass:0x[0-9a-f]+>\z}, "#{false}"
     end
+  end
+
+  def test_objtostring_fixnum
     assert_redefine_method('Integer', 'to_s', <<-'end')
       (-1..10).each { |i|
         assert_match %r{\A#<Integer:0x[0-9a-f]+>\z}, "#{i}"
       }
     end
+  end
+
+  def test_objtostring
     assert_equal "TestRubyOptimization::Objtostring", "#{Objtostring}"
     assert_match %r{\A#<Class:0x[0-9a-f]+>\z}, "#{Class.new}"
     assert_match %r{\A#<Module:0x[0-9a-f]+>\z}, "#{Module.new}"

diff --git a/test/ruby/test_process.rb b/test/ruby/test_process.rb
@@ -1996,7 +1996,7 @@ def test_popen_exit
   end
 
   def test_popen_reopen
-    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    assert_ruby_status([], "#{<<~"begin;"}\n#{<<~'end;'}")
     begin;
       io = File.open(IO::NULL)
       io2 = io.dup
@@ -2387,7 +2387,7 @@ def test_clock_getres_MACH_ABSOLUTE_TIME_BASED_CLOCK_MONOTONIC
   end
 
   def test_deadlock_by_signal_at_forking
-    assert_separately(%W(- #{RUBY}), <<-INPUT, timeout: 100)
+    assert_ruby_status(%W(- #{RUBY}), <<-INPUT, timeout: 100)
       ruby = ARGV.shift
       GC.start # reduce garbage
       GC.disable # avoid triggering CoW after forks

diff --git a/test/ruby/test_require.rb b/test/ruby/test_require.rb
@@ -842,7 +842,7 @@ def test_require_with_loaded_features_pop
     }
 
     # [Bug #21567]
-    assert_separately(%w[-rtempfile], "#{<<~"begin;"}\n#{<<~"end;"}")
+    assert_ruby_status(%w[-rtempfile], "#{<<~"begin;"}\n#{<<~"end;"}")
     begin;
       class MyString
         def initialize(path)
@@ -1029,7 +1029,7 @@ def test_resolve_feature_path_with_missing_feature
 
   def test_require_with_public_method_missing
     # [Bug #19793]
-    assert_separately(["-W0", "-rtempfile"], __FILE__, __LINE__, <<~RUBY, timeout: 60)
+    assert_ruby_status(["-W0", "-rtempfile"], <<~RUBY, timeout: 60)
       GC.stress = true
 
       class Object

diff --git a/test/ruby/test_shapes.rb b/test/ruby/test_shapes.rb
@@ -228,7 +228,7 @@ class Hi; end
   end
 
   def test_run_out_of_shape_for_object
-    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    assert_ruby_status([], "#{<<~"begin;"}\n#{<<~'end;'}")
     begin;
       class A
         def initialize
@@ -339,7 +339,7 @@ def test_evacuate_object_ivar_and_compaction
   end
 
   def test_gc_stress_during_evacuate_generic_ivar
-    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    assert_ruby_status([], "#{<<~"begin;"}\n#{<<~'end;'}")
     begin;
       [].instance_variable_set(:@a, 1)
 
@@ -507,7 +507,7 @@ def initialize
   end
 
   def test_run_out_of_shape_rb_obj_copy_ivar
-    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    assert_ruby_status([], "#{<<~"begin;"}\n#{<<~'end;'}")
     begin;
       class A
         def initialize

diff --git a/test/ruby/test_signal.rb b/test/ruby/test_signal.rb
@@ -333,7 +333,7 @@ def test_self_stop
 
   def test_sigwait_fd_unused
     t = EnvUtil.apply_timeout_scale(0.1)
-    assert_separately([], <<-End)
+    assert_ruby_status([], <<-End)
       tgt = $$
       trap(:TERM) { exit(0) }
       e = "Process.daemon; sleep #{t * 2}; Process.kill(:TERM,\#{tgt})"

diff --git a/test/ruby/test_syntax.rb b/test/ruby/test_syntax.rb
@@ -2296,13 +2296,13 @@ def test_argument_forwarding_with_super_memory_leak
   end
 
   def test_class_module_Object_ancestors
-    assert_separately([], <<-RUBY)
+    assert_ruby_status([], <<-RUBY)
       m = Module.new
       m::Bug18832 = 1
       include m
       class Bug18832; end
     RUBY
-    assert_separately([], <<-RUBY)
+    assert_ruby_status([], <<-RUBY)
       m = Module.new
       m::Bug18832 = 1
       include m

diff --git a/test/ruby/test_thread.rb b/test/ruby/test_thread.rb
@@ -1594,7 +1594,8 @@ def frame_for_deadlock_test_2
 
   # [Bug #21342]
   def test_unlock_locked_mutex_with_collected_fiber
-    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    bug21127 = '[ruby-core:120930] [Bug #21127]'
+    assert_ruby_status([], "#{<<~"begin;"}\n#{<<~'end;'}")
     begin;
       5.times do
         m = Mutex.new
@@ -1611,7 +1612,7 @@ def test_unlock_locked_mutex_with_collected_fiber
   end
 
   def test_unlock_locked_mutex_with_collected_fiber2
-    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    assert_ruby_status([], "#{<<~"begin;"}\n#{<<~'end;'}")
     begin;
       MUTEXES = []
       5.times do
@@ -1630,7 +1631,7 @@ def test_unlock_locked_mutex_with_collected_fiber2
   end
 
   def test_mutexes_locked_in_fiber_dont_have_aba_issue_with_new_fibers
-    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    assert_ruby_status([], "#{<<~"begin;"}\n#{<<~'end;'}")
     begin;
       mutexes = 1000.times.map do
         Mutex.new

diff --git a/test/ruby/test_weakmap.rb b/test/ruby/test_weakmap.rb
@@ -203,7 +203,7 @@ def test_compaction
       @wm[i] = obj
     end
 
-    assert_separately([], <<-'end;')
+    assert_ruby_status([], <<-'end;')
       wm = ObjectSpace::WeakMap.new
       obj = Object.new
       100.times do
@@ -224,7 +224,7 @@ def test_compaction
       assert_equal(val, wm[key])
     end;
 
-    assert_separately(["-W0"], <<-'end;')
+    assert_ruby_status(["-W0"], <<-'end;')
       wm = ObjectSpace::WeakMap.new
 
       ary = 10_000.times.map do

diff --git a/test/ruby/test_yield.rb b/test/ruby/test_yield.rb
@@ -401,7 +401,7 @@ def m.method_missing(*a)
 
   def test_block_cached_argc
     # [Bug #11451]
-    assert_separately([], <<-"end;")
+    assert_ruby_status([], <<-"end;")
       class Yielder
         def each
           yield :x, :y, :z

diff --git a/test/ruby/test_yjit.rb b/test/ruby/test_yjit.rb
@@ -133,7 +133,7 @@ def compiled_counts = RubyVM::YJIT.runtime_stats&.dig(:compiled_iseq_count)
   end
 
   def test_yjit_enable_with_monkey_patch
-    assert_separately(%w[--yjit-disable], <<~RUBY)
+    assert_ruby_status(%w[--yjit-disable], <<~RUBY)
       # This lets rb_method_entry_at(rb_mKernel, ...) return NULL
       Kernel.prepend(Module.new)
-Original file line number
+Diff line change
@@ Expand Up / @@ -40,6 +40,7 @@ class Parser < Ripper @@
               end
             }
           end
+          assert(true) if scripts.empty?
         end;
       end
     end