diff --git a/ge/graph/load/model_manager/davinci_model.cc b/ge/graph/load/model_manager/davinci_model.cc
index 52642086..078001a9 100755
--- a/ge/graph/load/model_manager/davinci_model.cc
+++ b/ge/graph/load/model_manager/davinci_model.cc
@@ -2875,23 +2875,16 @@ Status DavinciModel::UpdateKnownNodeArgs(const vector<void *> &inputs, const vec
   GELOGI("DavinciModel::UpdateKnownNodeArgs in");
   GE_CHK_STATUS_RET(CreateKnownZeroCopyMap(inputs, outputs),
                     "DavinciModel::UpdateKnownNodeArgs create map for input/output zero copy.");
-  if (!base_addr_not_changed_) {
-    total_io_addrs_.clear();
-    orig_total_io_addrs_.clear();
-    for (size_t task_index = 0; task_index < task_list_.size(); ++task_index) {
-      auto &task = task_list_[task_index];
-      if (task != nullptr) {
-        Status ret = task->UpdateArgs();
-        if (ret != SUCCESS) {
-          GELOGE(FAILED, "task %zu created by davinci model is nullptr.", task_index);
-          return FAILED;
-        }
+  total_io_addrs_.clear();
+  for (size_t task_index = 0; task_index < task_list_.size(); ++task_index) {
+    auto &task = task_list_[task_index];
+    if (task != nullptr) {
+      Status ret = task->UpdateArgs();
+      if (ret != SUCCESS) {
+        GELOGE(FAILED, "task %zu created by davinci model is nullptr.", task_index);
+        return FAILED;
       }
     }
-    // cache latest iterator io addr
-    orig_total_io_addrs_ = total_io_addrs_;
-  } else {
-    total_io_addrs_ = orig_total_io_addrs_;
   }
   GE_CHK_STATUS_RET(UpdateKnownZeroCopyAddr(total_io_addrs_, false), "DavinciModel::UpdateKnownZeroCopyAddr failed.");
 
diff --git a/ge/graph/load/model_manager/davinci_model.h b/ge/graph/load/model_manager/davinci_model.h
index 58478b0f..93f968ee 100755
--- a/ge/graph/load/model_manager/davinci_model.h
+++ b/ge/graph/load/model_manager/davinci_model.h
@@ -534,7 +534,6 @@ class DavinciModel {
   Status UpdateKnownNodeArgs(const vector<void *> &inputs, const vector<void *> &outputs);
   Status CreateKnownZeroCopyMap(const vector<void *> &inputs, const vector<void *> &outputs);
   Status UpdateKnownZeroCopyAddr(vector<void *> &total_io_addrs, bool update_args = true);
-  void SetKnownNodeAddrNotChanged(bool base_addr_not_changed) { base_addr_not_changed_ = base_addr_not_changed; }
 
   Status GetOrigInputInfo(uint32_t index, OriginInputInfo &orig_input_info) const;
   Status GetAllAippInputOutputDims(uint32_t index, vector<InputOutputDims> &input_dims,
@@ -1007,8 +1006,6 @@ class DavinciModel {
   map<const void *, void *> known_input_data_info_;
   map<const void *, void *> known_output_data_info_;
   vector<void *> total_io_addrs_;
-  vector<void *> orig_total_io_addrs_;
-  bool base_addr_not_changed_ = false;
 
   vector<vector<int64_t>> batch_info_;
   vector<vector<int64_t>> combined_batch_info_;
diff --git a/ge/graph/load/model_manager/task_info/kernel_task_info.cc b/ge/graph/load/model_manager/task_info/kernel_task_info.cc
index a8a85cb8..df222a26 100755
--- a/ge/graph/load/model_manager/task_info/kernel_task_info.cc
+++ b/ge/graph/load/model_manager/task_info/kernel_task_info.cc
@@ -492,11 +492,13 @@ void KernelTaskInfo::SetIoAddrs(const OpDescPtr &op_desc) {
 
 Status KernelTaskInfo::CopyNoncontinuousArgs(uint16_t offset) {
   GE_CHECK_NOTNULL(davinci_model_);
-  davinci_model_->UpdateKnownZeroCopyAddr(io_addrs_);
-  auto addr_size = kAddrLen * io_addrs_.size();
+  // copy new io addrs
+  vector<void *> io_addrs = io_addrs_;
+  davinci_model_->UpdateKnownZeroCopyAddr(io_addrs);
+  auto addr_size = kAddrLen * io_addrs.size();
 
   // copy io addr
-  errno_t sec_ret = memcpy_s(args_addr.get() + offset, addr_size, io_addrs_.data(), addr_size);
+  errno_t sec_ret = memcpy_s(args_addr.get() + offset, addr_size, io_addrs.data(), addr_size);
   if (sec_ret != EOK) {
     REPORT_CALL_ERROR("E19999", "Call memcpy_s fail, size:%zu, ret:0x%X, when KernelTaskInfo %s",
                       addr_size, sec_ret, __FUNCTION__);
diff --git a/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc b/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc
index bb96c275..74be94ed 100755
--- a/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc
+++ b/ge/hybrid/node_executor/compiledsubgraph/known_node_executor.cc
@@ -112,11 +112,6 @@ Status KnownNodeTask::Init(TaskContext &context) {
         "known node task allocate workspace failed.");
     RECORD_EXECUTION_EVENT(context.GetExecutionContext(), context.GetNodeName(),
                            "[KnownNodeTask_AllocateWorkspace] End, size %zu", davinci_model_->TotalMemSize());
-    bool addr_not_changed = false;
-    if (davinci_model_->GetRuntimeParam().mem_base == buffer) {
-      addr_not_changed = true;
-    }
-    davinci_model_->SetKnownNodeAddrNotChanged(addr_not_changed);
     // update mem base
     davinci_model_->UpdateMemBase(static_cast<uint8_t *>(buffer));
     GELOGI("KnownNodeTask::Init mem base is %p, size %lu.",