2005-06-23 Yoshinori K. Okuji <okuji@enbug.org>

* kern/mm.c (grub_free): If the next free block which is being
        merged is the first free block, set the first block to the block
        being freed.
        Reported by Vincent Guffens <guffens@inma.ucl.ac.be>.

kern/mm.c

@@ -295,6 +295,9 @@ grub_free (void *ptr)
       
       if (p + p->size == p->next)
 	{
+	  if (p->next == q)
+	    q = p;
+
 	  p->next->magic = 0;
 	  p->size += p->next->size;
 	  p->next = p->next->next;