diff -urN /md0/kernels/2.4/v2.4.8-ac5/mm/mmap.c work-v2.4.8-ac5/mm/mmap.c
--- /md0/kernels/2.4/v2.4.8-ac5/mm/mmap.c	Wed Aug 15 12:57:40 2001
+++ work-v2.4.8-ac5/mm/mmap.c	Wed Aug 15 13:02:35 2001
@@ -309,7 +309,8 @@
 	if (addr && !file && !(vm_flags & VM_SHARED)) {
 		struct vm_area_struct * vma = find_vma(mm, addr-1);
 		if (vma && vma->vm_end == addr && !vma->vm_file && 
-		    vma->vm_flags == vm_flags) {
+		    (vma->vm_flags & ~(MAP_NORESERVE | MAP_FIXED)) ==
+		    (vm_flags & ~(MAP_NORESERVE | MAP_FIXED))) {
 			vma->vm_end = addr + len;
 			goto out;
 		}