VPP API: Memory trace

[vpp.git] / src / svm / svm.c

diff --git a/src/svm/svm.c b/src/svm/svm.c
index 16a58fa..d958c83 100644 (file)
--- a/src/svm/svm.c
+++ b/src/svm/svm.c
@@ -83,7 +83,7 @@ svm_get_global_region_base_va ()
   unformat_free (&input);
   close (fd);
 
-  count_leading_zeros (bits, end);
+  bits = count_leading_zeros (end);
   bits = 64 - bits;
   if (bits >= 36 && bits <= 48)
     return ((1ul << bits) / 4) - (2 * SVM_GLOBAL_REGION_SIZE);
@@ -339,9 +339,13 @@ svm_data_region_create (svm_map_region_args_t * a, svm_region_t * rp)
 
   if (a->flags & SVM_FLAGS_MHEAP)
     {
+      mheap_t *heap_header;
       rp->data_heap =
        mheap_alloc_with_flags ((void *) (rp->data_base), map_size,
                                MHEAP_FLAG_DISABLE_VM);
+      heap_header = mheap_header (rp->data_heap);
+      heap_header->flags |= MHEAP_FLAG_THREAD_SAFE;
+
       rp->flags |= SVM_FLAGS_MHEAP;
     }
   return 0;
@@ -652,6 +656,10 @@ svm_map_region (svm_map_region_args_t * a)
          return (0);
        }
 
+      /* Reset ownership in case the client started first */
+      if (fchown (svm_fd, a->uid, a->gid) < 0)
+       clib_unix_warning ("segment chown [ok if client starts first]");
+
       time_left = 20;
       while (1)
        {
@@ -721,6 +729,8 @@ svm_map_region (svm_map_region_args_t * a)
          return (0);
        }
 
+      close (svm_fd);
+
       if ((uword) rp != rp->virtual_base)
        {
          clib_warning ("mmap botch");