1 files changed, 4 insertions, 4 deletions

diff --git a/src/w32heap.c b/src/w32heap.c
index df2fe0a8fa3..6643b439a26 100644
--- a/src/w32heap.c
+++ b/src/w32heap.c
@@ -714,13 +714,12 @@ mmap_realloc (void **var, size_t nbytes)
       /* If there is enough room in the current reserved area, then
          commit more pages as needed.  */
       if (m2.State == MEM_RESERVE
+          && m2.AllocationBase == memInfo.AllocationBase
           && nbytes <= memInfo.RegionSize + m2.RegionSize)
         {
           void *p;
 
-          p = VirtualAlloc (*var + memInfo.RegionSize,
-                            nbytes - memInfo.RegionSize,
-                            MEM_COMMIT, PAGE_READWRITE);
+          p = VirtualAlloc (*var, nbytes, MEM_COMMIT, PAGE_READWRITE);
           if (!p /* && GetLastError() != ERROR_NOT_ENOUGH_MEMORY */)
             {
               DebPrint (("realloc enlarge: VirtualAlloc (%p + %I64x, %I64x) error %ld\n",
@@ -728,7 +727,8 @@ mmap_realloc (void **var, size_t nbytes)
                          (uint64_t)(nbytes - memInfo.RegionSize),
                          GetLastError ()));
               DebPrint (("next region: %p %p %I64x %x\n", m2.BaseAddress,
-                         m2.AllocationBase, m2.RegionSize, m2.AllocationProtect));
+                         m2.AllocationBase, (uint64_t)m2.RegionSize,
+                         m2.AllocationProtect));
             }
           else
             return *var;