diff --git a/ractor.c b/ractor.c
index d50704dec4..bdff0c99fd 100644
--- a/ractor.c
+++ b/ractor.c
@@ -39,7 +39,8 @@ static void
 ASSERT_ractor_unlocking(rb_ractor_t *r)
 {
 #if RACTOR_CHECK_MODE > 0
-    if (rb_current_execution_context(false) != NULL && r->sync.locked_by == rb_ractor_self(GET_RACTOR())) {
+    const rb_execution_context_t *ec = rb_current_ec_noinline();
+    if (ec != NULL && r->sync.locked_by == rb_ractor_self(rb_ec_ractor_ptr(ec))) {
         rb_bug("recursive ractor locking");
     }
 #endif
@@ -49,7 +50,8 @@ static void
 ASSERT_ractor_locking(rb_ractor_t *r)
 {
 #if RACTOR_CHECK_MODE > 0
-    if (rb_current_execution_context(false) != NULL && r->sync.locked_by != rb_ractor_self(GET_RACTOR())) {
+    const rb_execution_context_t *ec = rb_current_ec_noinline();
+    if (ec != NULL && r->sync.locked_by != rb_ractor_self(rb_ec_ractor_ptr(ec))) {
         rp(r->sync.locked_by);
         rb_bug("ractor lock is not acquired.");
     }
@@ -77,7 +79,7 @@ ractor_lock(rb_ractor_t *r, const char *file, int line)
 static void
 ractor_lock_self(rb_ractor_t *cr, const char *file, int line)
 {
-    VM_ASSERT(cr == GET_RACTOR());
+    VM_ASSERT(cr == rb_ec_ractor_ptr(rb_current_ec_noinline()));
 #if RACTOR_CHECK_MODE > 0
     VM_ASSERT(cr->sync.locked_by != cr->pub.self);
 #endif
@@ -99,7 +101,7 @@ ractor_unlock(rb_ractor_t *r, const char *file, int line)
 static void
 ractor_unlock_self(rb_ractor_t *cr, const char *file, int line)
 {
-    VM_ASSERT(cr == GET_RACTOR());
+    VM_ASSERT(cr == rb_ec_ractor_ptr(rb_current_ec_noinline()));
 #if RACTOR_CHECK_MODE > 0
     VM_ASSERT(cr->sync.locked_by == cr->pub.self);
 #endif
diff --git a/vm_core.h b/vm_core.h
index a9bd47aaae..37af34df9c 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -2118,7 +2118,7 @@ rb_vm_check_ints(rb_execution_context_t *ec)
     VM_ASSERT(ruby_assert_critical_section_entered == 0);
 #endif
 
-    VM_ASSERT(ec == GET_EC());
+    VM_ASSERT(ec == rb_current_ec_noinline());
 
     if (UNLIKELY(RUBY_VM_INTERRUPTED_ANY(ec))) {
         rb_threadptr_execute_interrupts(rb_ec_thread_ptr(ec), 0);