diff --git a/src/hotspot/cpu/aarch64/c1_Runtime1_aarch64.cpp b/src/hotspot/cpu/aarch64/c1_Runtime1_aarch64.cpp
index d603d134a37..a971b572556 100644
--- a/src/hotspot/cpu/aarch64/c1_Runtime1_aarch64.cpp
+++ b/src/hotspot/cpu/aarch64/c1_Runtime1_aarch64.cpp
@@ -870,10 +870,6 @@ OopMapSet* Runtime1::generate_code_for(StubId id, StubAssembler* sasm) {
         f.load_argument(0, r1); // r1,: index
         int call_offset = __ call_RT(r0, noreg, CAST_FROM_FN_PTR(address, load_flat_array), r0, r1);
 
-        // Ensure the stores that initialize the buffer are visible
-        // before any subsequent store that publishes this reference.
-        __ membar(Assembler::StoreStore);
-
         oop_maps = new OopMapSet();
         oop_maps->add_gc_map(call_offset, map);
         restore_live_registers_except_r0(sasm);
diff --git a/src/hotspot/cpu/aarch64/interp_masm_aarch64.cpp b/src/hotspot/cpu/aarch64/interp_masm_aarch64.cpp
index 1b16ec25ca7..95374d4fb81 100644
--- a/src/hotspot/cpu/aarch64/interp_masm_aarch64.cpp
+++ b/src/hotspot/cpu/aarch64/interp_masm_aarch64.cpp
@@ -212,7 +212,6 @@ void InterpreterMacroAssembler::get_method_counters(Register method,
 
 void InterpreterMacroAssembler::read_flat_field(Register entry, Register obj) {
   call_VM(obj, CAST_FROM_FN_PTR(address, InterpreterRuntime::read_flat_field), obj, entry);
-  membar(Assembler::StoreStore);
 }
 
 void InterpreterMacroAssembler::write_flat_field(Register entry, Register field_offset,
diff --git a/src/hotspot/cpu/ppc/interp_masm_ppc_64.cpp b/src/hotspot/cpu/ppc/interp_masm_ppc_64.cpp
index 0c0c9038429..49d9c6dd1cf 100644
--- a/src/hotspot/cpu/ppc/interp_masm_ppc_64.cpp
+++ b/src/hotspot/cpu/ppc/interp_masm_ppc_64.cpp
@@ -2432,7 +2432,6 @@ void InterpreterMacroAssembler::notify_method_exit(bool is_native_method, TosSta
 
 void InterpreterMacroAssembler::read_flat_field(Register entry, Register obj) {
   call_VM(obj, CAST_FROM_FN_PTR(address, InterpreterRuntime::read_flat_field), obj, entry);
-  membar(Assembler::StoreStore | Assembler::LoadLoad); // for allocation and volatile load
 }
 
 void InterpreterMacroAssembler::write_flat_field(Register entry, Register tmp1, Register tmp2,
diff --git a/src/hotspot/cpu/ppc/templateTable_ppc_64.cpp b/src/hotspot/cpu/ppc/templateTable_ppc_64.cpp
index 76829a09255..9ae620010ee 100644
--- a/src/hotspot/cpu/ppc/templateTable_ppc_64.cpp
+++ b/src/hotspot/cpu/ppc/templateTable_ppc_64.cpp
@@ -3417,7 +3417,8 @@ void TemplateTable::fast_accessfield(TosState state) {
       if (support_IRIW_for_not_multiple_copy_atomic_cpu) { __ fence(); }
       __ read_flat_field(Rcache, R17_tos);
       __ verify_oop(R17_tos);
-      // memory barrier in read_flat_field
+      __ twi_0(R17_tos);
+      __ isync();
       break;
     }
     case Bytecodes::_fast_agetfield:
diff --git a/src/hotspot/cpu/riscv/c1_Runtime1_riscv.cpp b/src/hotspot/cpu/riscv/c1_Runtime1_riscv.cpp
index e15422b83a7..b031a4ce5cc 100644
--- a/src/hotspot/cpu/riscv/c1_Runtime1_riscv.cpp
+++ b/src/hotspot/cpu/riscv/c1_Runtime1_riscv.cpp
@@ -871,10 +871,6 @@ OopMapSet* Runtime1::generate_code_for(StubId id, StubAssembler* sasm) {
         f.load_argument(0, x11); // x11,: index
         int call_offset = __ call_RT(x10, noreg, CAST_FROM_FN_PTR(address, load_flat_array), x10, x11);
 
-        // Ensure the stores that initialize the buffer are visible
-        // before many subsequent store that publishes this reference.
-        __ membar(MacroAssembler::StoreStore);
-
         oop_maps = new OopMapSet();
         oop_maps->add_gc_map(call_offset, map);
         restore_live_registers_except_r10(sasm);
diff --git a/src/hotspot/cpu/riscv/interp_masm_riscv.cpp b/src/hotspot/cpu/riscv/interp_masm_riscv.cpp
index 623ecc1fd3b..802cf7eac67 100644
--- a/src/hotspot/cpu/riscv/interp_masm_riscv.cpp
+++ b/src/hotspot/cpu/riscv/interp_masm_riscv.cpp
@@ -1868,7 +1868,6 @@ void InterpreterMacroAssembler::get_method_counters(Register method,
 
 void InterpreterMacroAssembler::read_flat_field(Register entry, Register obj) {
   call_VM(obj, CAST_FROM_FN_PTR(address, InterpreterRuntime::read_flat_field), obj, entry);
-  membar(MacroAssembler::StoreStore);
 }
 
 void InterpreterMacroAssembler::write_flat_field(Register entry, Register field_offset,