From: Marion Guthmuller <marion.guthmuller@inria.fr>
Date: Tue, 24 Feb 2015 16:25:36 +0000 (+0100)
Subject: model-checker : extend comm determinism verification
X-Git-Tag: v3_12~749
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/a883120fb94a2ec473ac6ecfba41a69ff1846426

model-checker : extend comm determinism verification
---

diff --git a/src/mc/mc_comm_determinism.c b/src/mc/mc_comm_determinism.c
index 1b11b1830b..1755a6ae6a 100644
--- a/src/mc/mc_comm_determinism.c
+++ b/src/mc/mc_comm_determinism.c
@@ -45,9 +45,9 @@ static e_mc_comm_pattern_difference_t compare_comm_pattern(mc_comm_pattern_t com
     return SRC_PROC_DIFF;
   if (comm1->dst_proc != comm2->dst_proc)
     return DST_PROC_DIFF;
-    if (comm1->tag != comm2->tag)
+  if (comm1->tag != comm2->tag)
     return TAG_DIFF;
-    /*if (comm1->data_size != comm2->data_size)
+  if (comm1->data_size != comm2->data_size)
     return DATA_SIZE_DIFF;
   if(comm1->data == NULL && comm2->data == NULL)
     return 0;
@@ -57,76 +57,45 @@ static e_mc_comm_pattern_difference_t compare_comm_pattern(mc_comm_pattern_t com
     return DATA_DIFF;
   }else{
     return DATA_DIFF;
-  }*/
+  }
   return 0;
 }
 
-static void print_determinism_result(e_mc_comm_pattern_difference_t diff, int process, mc_comm_pattern_t comm, unsigned int cursor) {
-  if (_sg_mc_comms_determinism && !initial_global_state->comm_deterministic) {
-    XBT_INFO("****************************************************");
-    XBT_INFO("***** Non-deterministic communications pattern *****");
-    XBT_INFO("****************************************************");
-    XBT_INFO("The communications pattern of the process %d is different!",  process);
-    switch(diff) {
-    case TYPE_DIFF:
-      XBT_INFO("Different communication type for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case RDV_DIFF:
-      XBT_INFO("Different communication rdv for communication %s at index %d",  comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case TAG_DIFF:
-      XBT_INFO("Different communication tag for communication %s at index %d",  comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case SRC_PROC_DIFF:
-        XBT_INFO("Different communication source process for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case DST_PROC_DIFF:
-        XBT_INFO("Different communication destination process for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case DATA_SIZE_DIFF:
-      XBT_INFO("Different communication data size for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case DATA_DIFF:
-      XBT_INFO("Different communication data for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    default:
-      break;
-    }
-    MC_print_statistics(mc_stats);
-    xbt_abort();
-  } else if (_sg_mc_send_determinism && !initial_global_state->send_deterministic) {
-    XBT_INFO("*********************************************************");
-    XBT_INFO("***** Non-send-deterministic communications pattern *****");
-    XBT_INFO("*********************************************************");
-    XBT_INFO("The communications pattern of the process %d is different!",  process);
-    switch(diff) {
-    case TYPE_DIFF:
-      XBT_INFO("Different communication type for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case RDV_DIFF:
-      XBT_INFO("Different communication rdv for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case TAG_DIFF:
-      XBT_INFO("Different communication tag for communication %s at index %d",  comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case SRC_PROC_DIFF:
-        XBT_INFO("Different communication source process for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case DST_PROC_DIFF:
-        XBT_INFO("Different communication destination process for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case DATA_SIZE_DIFF:
-      XBT_INFO("Different communication data size for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    case DATA_DIFF:
-      XBT_INFO("Different communication data for communication %s at index %d", comm->type == SIMIX_COMM_SEND ? "Send" : "Recv", cursor);
-      break;
-    default:
-      break;
-    }
-    MC_print_statistics(mc_stats);
-    xbt_abort();
+static char* print_determinism_result(e_mc_comm_pattern_difference_t diff, int process, mc_comm_pattern_t comm, unsigned int cursor) {
+  char *type, *res;
+
+  if(comm->type == SIMIX_COMM_SEND)
+    type = bprintf("The send communications pattern of the process %d is different!", process - 1);
+  else
+    type = bprintf("The recv communications pattern of the process %d is different!", process - 1);
+
+  switch(diff) {
+  case TYPE_DIFF:
+    res = bprintf("%s Different type for communication #%d", type, cursor);
+    break;
+  case RDV_DIFF:
+    res = bprintf("%s Different rdv for communication #%d", type, cursor);
+    break;
+  case TAG_DIFF:
+    res = bprintf("%s Different tag for communication #%d", type, cursor);
+    break;
+  case SRC_PROC_DIFF:
+      res = bprintf("%s Different source for communication #%d", type, cursor);
+    break;
+  case DST_PROC_DIFF:
+      res = bprintf("%s Different destination for communication #%d", type, cursor);
+    break;
+  case DATA_SIZE_DIFF:
+    res = bprintf("%s\n Different data size for communication #%d", type, cursor);
+    break;
+  case DATA_DIFF:
+    res = bprintf("%s\n Different data for communication #%d", type, cursor);
+    break;
+  default:
+    break;
   }
+
+  return res;
 }
 
 static void update_comm_pattern(mc_comm_pattern_t comm_pattern, smx_synchro_t comm)
@@ -152,18 +121,46 @@ static void deterministic_comm_pattern(int process, mc_comm_pattern_t comm, int
   mc_list_comm_pattern_t list_comm_pattern = (mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, process, mc_list_comm_pattern_t);
 
   if(!backtracking){
-    mc_comm_pattern_t initial_comm = xbt_dynar_get_as(list_comm_pattern->list, comm->index, mc_comm_pattern_t);
+    mc_comm_pattern_t initial_comm = xbt_dynar_get_as(list_comm_pattern->list, list_comm_pattern->index_comm, mc_comm_pattern_t);
     e_mc_comm_pattern_difference_t diff;
     
     if((diff = compare_comm_pattern(initial_comm, comm)) != NONE_DIFF){
-      if (comm->type == SIMIX_COMM_SEND)
+      if (comm->type == SIMIX_COMM_SEND){
         initial_global_state->send_deterministic = 0;
-      initial_global_state->comm_deterministic = 0;
-      print_determinism_result(diff, process, comm, list_comm_pattern->index_comm + 1);
+        if(initial_global_state->send_diff != NULL)
+          xbt_free(initial_global_state->send_diff);
+        initial_global_state->send_diff = print_determinism_result(diff, process, comm, list_comm_pattern->index_comm + 1);
+      }else{
+        initial_global_state->recv_deterministic = 0;
+        if(initial_global_state->recv_diff != NULL)
+          xbt_free(initial_global_state->recv_diff);
+        initial_global_state->recv_diff = print_determinism_result(diff, process, comm, list_comm_pattern->index_comm + 1);
+      }
+      if(_sg_mc_send_determinism && !initial_global_state->send_deterministic){
+        XBT_INFO("*********************************************************");
+        XBT_INFO("***** Non-send-deterministic communications pattern *****");
+        XBT_INFO("*********************************************************");
+        XBT_INFO("%s", initial_global_state->send_diff);
+        xbt_free(initial_global_state->send_diff);
+        initial_global_state->send_diff = NULL;
+        MC_print_statistics(mc_stats);
+        xbt_abort(); 
+      }else if(_sg_mc_comms_determinism && (!initial_global_state->send_deterministic && !initial_global_state->recv_deterministic)) {
+        XBT_INFO("****************************************************");
+        XBT_INFO("***** Non-deterministic communications pattern *****");
+        XBT_INFO("****************************************************");
+        XBT_INFO("%s", initial_global_state->send_diff);
+        XBT_INFO("%s", initial_global_state->recv_diff);
+        xbt_free(initial_global_state->send_diff);
+        initial_global_state->send_diff = NULL;
+        xbt_free(initial_global_state->recv_diff);
+        initial_global_state->recv_diff = NULL;
+        MC_print_statistics(mc_stats);
+        xbt_abort();
+      } 
     }
   }
     
-  list_comm_pattern->index_comm++;
   comm_pattern_free(comm);
 
 }
@@ -178,15 +175,13 @@ void list_comm_pattern_free_voidp(void *p) {
   list_comm_pattern_free((mc_list_comm_pattern_t) * (void **) p);
 }
 
-void get_comm_pattern(xbt_dynar_t list, smx_simcall_t request, e_mc_call_type_t call_type)
+void get_comm_pattern(xbt_dynar_t list, smx_simcall_t request, e_mc_call_type_t call_type, int backtracking)
 {
 
   mc_comm_pattern_t pattern = NULL;
   pattern = xbt_new0(s_mc_comm_pattern_t, 1);
   pattern->data_size = -1;
   pattern->data = NULL;
-
-  pattern->index = ((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, request->issuer->pid, mc_list_comm_pattern_t))->index_comm + xbt_dynar_length((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, request->issuer->pid, xbt_dynar_t));
   
   void *addr_pointed;
   
@@ -207,6 +202,17 @@ void get_comm_pattern(xbt_dynar_t list, smx_simcall_t request, e_mc_call_type_t
       else
         memcpy(pattern->data, pattern->comm->comm.src_buff, pattern->data_size);
     }
+    if(((MPI_Request)simcall_comm_isend__get__data(request))->detached){
+      if (!initial_global_state->initial_communications_pattern_done) {
+        /* Store comm pattern */
+        xbt_dynar_push(((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, pattern->src_proc, mc_list_comm_pattern_t))->list, &pattern);
+      } else {
+        /* Evaluate comm determinism */
+        deterministic_comm_pattern(pattern->src_proc, pattern, backtracking);
+        ((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, pattern->src_proc, mc_list_comm_pattern_t))->index_comm++;
+      }
+      return;
+    }
   } else if (call_type == MC_CALL_TYPE_RECV) {                      
     pattern->type = SIMIX_COMM_RECEIVE;
     pattern->comm = simcall_comm_irecv__get__result(request);
@@ -223,67 +229,37 @@ void get_comm_pattern(xbt_dynar_t list, smx_simcall_t request, e_mc_call_type_t
   XBT_DEBUG("Insert incomplete comm pattern %p for process %lu", pattern, request->issuer->pid);
 }
 
-void complete_comm_pattern(xbt_dynar_t list, smx_synchro_t comm, int backtracking) {
+void complete_comm_pattern(xbt_dynar_t list, smx_synchro_t comm, unsigned int issuer, int backtracking) {
 
   mc_comm_pattern_t current_comm_pattern;
   unsigned int cursor = 0;
-  unsigned int src = comm->comm.src_proc->pid;
-  unsigned int dst = comm->comm.dst_proc->pid;
-  mc_comm_pattern_t src_comm_pattern;
-  mc_comm_pattern_t dst_comm_pattern;
-  int src_completed = 0, dst_completed = 0;
+  mc_comm_pattern_t comm_pattern;
+  int completed = 0;
 
   /* Complete comm pattern */
-  xbt_dynar_foreach((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, src, xbt_dynar_t), cursor, current_comm_pattern) {
+  xbt_dynar_foreach((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, issuer, xbt_dynar_t), cursor, current_comm_pattern) {
     if (current_comm_pattern-> comm == comm) {
       update_comm_pattern(current_comm_pattern, comm);
-      src_completed = 1;
-      xbt_dynar_remove_at((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, src, xbt_dynar_t), cursor, &src_comm_pattern);
-      XBT_DEBUG("Remove incomplete comm pattern for process %u at cursor %u", src, cursor);
+      completed = 1;
+      xbt_dynar_remove_at((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, issuer, xbt_dynar_t), cursor, &comm_pattern);
+      XBT_DEBUG("Remove incomplete comm pattern for process %u at cursor %u", issuer, cursor);
       break;
     }
   }
-  if(!src_completed)
-    xbt_die("Corresponding communication for the source process not found!");
-
-  cursor = 0;
+  if(!completed)
+    xbt_die("Corresponding communication not found!");
 
-  xbt_dynar_foreach((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, dst, xbt_dynar_t), cursor, current_comm_pattern) {
-    if (current_comm_pattern-> comm == comm) {
-      update_comm_pattern(current_comm_pattern, comm);
-      dst_completed = 1;
-      xbt_dynar_remove_at((xbt_dynar_t)xbt_dynar_get_as(incomplete_communications_pattern, dst, xbt_dynar_t), cursor, &dst_comm_pattern);
-      XBT_DEBUG("Remove incomplete comm pattern for process %u at cursor %u", dst, cursor);
-      break;
-    }
-  }
-  if(!dst_completed)
-    xbt_die("Corresponding communication for the destination process not found!");
-  
   if (!initial_global_state->initial_communications_pattern_done) {
     /* Store comm pattern */
-    if(src_comm_pattern->index < xbt_dynar_length(((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, src, mc_list_comm_pattern_t))->list)){
-      xbt_dynar_set(((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, src, mc_list_comm_pattern_t))->list, src_comm_pattern->index, &src_comm_pattern);
-      ((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, src, mc_list_comm_pattern_t))->list->used++;
-    } else {
-      xbt_dynar_insert_at(((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, src, mc_list_comm_pattern_t))->list, src_comm_pattern->index, &src_comm_pattern);
-    }
-    
-    if(dst_comm_pattern->index < xbt_dynar_length(((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, dst, mc_list_comm_pattern_t))->list)) {
-      xbt_dynar_set(((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, dst, mc_list_comm_pattern_t))->list, dst_comm_pattern->index, &dst_comm_pattern);
-      ((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, dst, mc_list_comm_pattern_t))->list->used++;
-    } else {
-      xbt_dynar_insert_at(((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, dst, mc_list_comm_pattern_t))->list, dst_comm_pattern->index, &dst_comm_pattern);
-    }
-    ((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, src, mc_list_comm_pattern_t))->index_comm++;
-    ((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, dst, mc_list_comm_pattern_t))->index_comm++;
+    xbt_dynar_push(((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, issuer, mc_list_comm_pattern_t))->list, &comm_pattern);
   } else {
     /* Evaluate comm determinism */
-    deterministic_comm_pattern(src, src_comm_pattern, backtracking);
-    deterministic_comm_pattern(dst, dst_comm_pattern, backtracking);
+    deterministic_comm_pattern(issuer, comm_pattern, backtracking);
+    ((mc_list_comm_pattern_t)xbt_dynar_get_as(initial_communications_pattern, issuer, mc_list_comm_pattern_t))->index_comm++;
   }
 }
 
+
 /************************ Main algorithm ************************/
 
 void MC_pre_modelcheck_comm_determinism(void)
diff --git a/src/mc/mc_comm_pattern.h b/src/mc/mc_comm_pattern.h
index e3cd1af92f..2bb40d2540 100644
--- a/src/mc/mc_comm_pattern.h
+++ b/src/mc/mc_comm_pattern.h
@@ -76,11 +76,11 @@ static inline e_mc_call_type_t mc_get_call_type(smx_simcall_t req)
   }
 }
 
-void get_comm_pattern(xbt_dynar_t communications_pattern, smx_simcall_t request, e_mc_call_type_t call_type);
+void get_comm_pattern(xbt_dynar_t communications_pattern, smx_simcall_t request, e_mc_call_type_t call_type, int backtracking);
 void handle_comm_pattern(e_mc_call_type_t call_type, smx_simcall_t request, int value, xbt_dynar_t current_pattern, int backtracking);
 void comm_pattern_free_voidp(void *p);
 void list_comm_pattern_free_voidp(void *p);
-void complete_comm_pattern(xbt_dynar_t list, smx_synchro_t comm, int backtracking);
+void complete_comm_pattern(xbt_dynar_t list, smx_synchro_t comm, unsigned int issuer, int backtracking);
 void MC_pre_modelcheck_comm_determinism(void);
 void MC_modelcheck_comm_determinism(void);
 
diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c
index 59425b305f..ca66d7bdb0 100644
--- a/src/mc/mc_global.c
+++ b/src/mc/mc_global.c
@@ -249,8 +249,11 @@ static void MC_modelcheck_comm_determinism_init(void)
   initial_global_state = xbt_new0(s_mc_global_t, 1);
   initial_global_state->snapshot = MC_take_snapshot(0);
   initial_global_state->initial_communications_pattern_done = 0;
-  initial_global_state->comm_deterministic = 1;
+  initial_global_state->recv_deterministic = 1;
   initial_global_state->send_deterministic = 1;
+  initial_global_state->recv_diff = NULL;
+  initial_global_state->send_diff = NULL;
+
   MC_SET_STD_HEAP;
 
   MC_modelcheck_comm_determinism();
@@ -331,12 +334,13 @@ void MC_do_the_modelcheck_for_real()
     XBT_INFO("Check communication determinism");
     MC_modelcheck_comm_determinism_init();
   } else if (!_sg_mc_property_file || _sg_mc_property_file[0] == '\0') {
-    if (mc_reduce_kind == e_mc_reduce_unset)
-      mc_reduce_kind = e_mc_reduce_dpor;
-    if(_sg_mc_termination)
+    if(_sg_mc_termination){
       XBT_INFO("Check non progressive cycles");
-    else
+      mc_reduce_kind = e_mc_reduce_none;
+    }else{
       XBT_INFO("Check a safety property");
+      mc_reduce_kind = e_mc_reduce_dpor;
+    }
     MC_modelcheck_safety_init();
   } else {
     if (mc_reduce_kind == e_mc_reduce_unset)
@@ -379,7 +383,7 @@ void handle_comm_pattern(e_mc_call_type_t call_type, smx_simcall_t req, int valu
     break;
   case MC_CALL_TYPE_SEND:
   case MC_CALL_TYPE_RECV:
-    get_comm_pattern(pattern, req, call_type);
+    get_comm_pattern(pattern, req, call_type, backtracking);
     break;
   case MC_CALL_TYPE_WAIT:
   case MC_CALL_TYPE_WAITANY:
@@ -389,10 +393,7 @@ void handle_comm_pattern(e_mc_call_type_t call_type, smx_simcall_t req, int valu
         current_comm = simcall_comm_wait__get__comm(req);
       else
         current_comm = xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, smx_synchro_t);
-      // First wait only must be considered:
-      if (current_comm->comm.refcount == 1)
-        complete_comm_pattern(pattern, current_comm, backtracking);
-      break;
+      complete_comm_pattern(pattern, current_comm, req->issuer->pid, backtracking);
     }
   default:
     xbt_die("Unexpected call type %i", (int)call_type);
@@ -457,7 +458,7 @@ void MC_replay(xbt_fifo_t stack)
   XBT_DEBUG("**** Begin Replay ****");
 
   /* Intermediate backtracking */
-  if(_sg_mc_checkpoint > 0) {
+  if(_sg_mc_checkpoint > 0 || _sg_mc_termination || _sg_mc_visited > 0) {
     start_item = xbt_fifo_get_first_item(stack);
     state = (mc_state_t)xbt_fifo_get_item_content(start_item);
     if(state->system_state){
@@ -741,11 +742,23 @@ void MC_dump_stack_liveness(xbt_fifo_t stack)
 
 }
 
-
 void MC_print_statistics(mc_stats_t stats)
 {
   xbt_mheap_t previous_heap = mmalloc_get_current_heap();
 
+  if(_sg_mc_comms_determinism) {
+    if (!initial_global_state->recv_deterministic && initial_global_state->send_deterministic){
+      XBT_INFO("******************************************************");
+      XBT_INFO("**** Only-send-deterministic communication pattern ****");
+      XBT_INFO("******************************************************");
+      XBT_INFO("%s", initial_global_state->recv_diff);
+    }else if(!initial_global_state->send_deterministic && initial_global_state->recv_deterministic) {
+      XBT_INFO("******************************************************");
+      XBT_INFO("**** Only-recv-deterministic communication pattern ****");
+      XBT_INFO("******************************************************");
+      XBT_INFO("%s", initial_global_state->send_diff);
+    }
+  }
   if (stats->expanded_pairs == 0) {
     XBT_INFO("Expanded states = %lu", stats->expanded_states);
     XBT_INFO("Visited states = %lu", stats->visited_states);
@@ -759,11 +772,10 @@ void MC_print_statistics(mc_stats_t stats)
     fprintf(dot_output, "}\n");
     fclose(dot_output);
   }
-  if (initial_global_state != NULL) {
+  if (initial_global_state != NULL && (_sg_mc_comms_determinism || _sg_mc_send_determinism)) {
+    XBT_INFO("Send-deterministic : %s", !initial_global_state->send_deterministic ? "No" : "Yes");
     if (_sg_mc_comms_determinism)
-      XBT_INFO("Communication-deterministic : %s", !initial_global_state->comm_deterministic ? "No" : "Yes");
-    if (_sg_mc_send_determinism)
-      XBT_INFO("Send-deterministic : %s", !initial_global_state->send_deterministic ? "No" : "Yes");
+      XBT_INFO("Recv-deterministic : %s", !initial_global_state->recv_deterministic ? "No" : "Yes");
   }
   mmalloc_set_current_heap(previous_heap);
 }
diff --git a/src/mc/mc_snapshot.h b/src/mc/mc_snapshot.h
index 1d0f9b0937..d393116e2d 100644
--- a/src/mc/mc_snapshot.h
+++ b/src/mc/mc_snapshot.h
@@ -213,8 +213,10 @@ typedef struct s_mc_global_t{
   int prev_pair;
   char *prev_req;
   int initial_communications_pattern_done;
-  int comm_deterministic;
+  int recv_deterministic;
   int send_deterministic;
+  char *send_diff;
+  char *recv_diff;
 }s_mc_global_t, *mc_global_t;
 
 typedef struct s_mc_checkpoint_ignore_region{