The semaphore doesn't need to be shared between processes.

diff --git a/src/xbt/mmalloc/mm_module.c b/src/xbt/mmalloc/mm_module.c
index 2ba5796..5cb6084 100644 (file)
--- a/src/xbt/mmalloc/mm_module.c
+++ b/src/xbt/mmalloc/mm_module.c
@@ -125,7 +125,7 @@ xbt_mheap_t xbt_mheap_new(int fd, void *baseaddr)
            mdp = (struct mdesc *) mtemp.base;
            mdp->fd = fd;
            if(!mdp->refcount){
            mdp = (struct mdesc *) mtemp.base;
            mdp->fd = fd;
            if(!mdp->refcount){

-             sem_init(&mdp->sem, 1, 1);
+              sem_init(&mdp->sem, 0, 1);

              mdp->refcount++;
            }
          }
              mdp->refcount++;
            }
          }


@@ -168,10 +168,8 @@ xbt_mheap_t xbt_mheap_new(int fd, void *baseaddr)
 
   if (mdp->fd < 0){
     mdp->flags |= MMALLOC_ANONYMOUS;
 
   if (mdp->fd < 0){
     mdp->flags |= MMALLOC_ANONYMOUS;

-    sem_init(&mdp->sem, 0, 1);
-  }else{
-    sem_init(&mdp->sem, 1, 1);

   }
   }

+  sem_init(&mdp->sem, 0, 1);

   
   /* If we have not been passed a valid open file descriptor for the file
      to map to, then open /dev/zero and use that to map to. */
   
   /* If we have not been passed a valid open file descriptor for the file
      to map to, then open /dev/zero and use that to map to. */