diff --git a/src/sys/lib/kmalloc.c b/src/sys/lib/kmalloc.c
index d6f27d7..633dc9b 100644
--- a/src/sys/lib/kmalloc.c
+++ b/src/sys/lib/kmalloc.c
@@ -243,6 +243,9 @@
 ************************************************************************/
 void insertFreeDesc(struct memDescriptor *freeDesc) {
   struct memDescriptor *tmpDesc;
+  
+  assert(freeDesc);
+  
   freeDesc->status = 0x0;
   if (freeKernDesc != 0x0) {
     for (tmpDesc=freeKernDesc;tmpDesc;tmpDesc=tmpDesc->next) {
@@ -332,6 +335,11 @@
 
 /***
  $Log$
+ Revision 1.9  2004/07/17 15:54:52  reddawg
+ kmalloc: added assert()
+ bioscall: fixed some potential problem by not making 16bit code
+ paging: added assert()
+
  Revision 1.8  2004/06/17 14:50:32  reddawg
  kmalloc: converted some variables to static