Index: arm/mv/mv_machdep.c
===================================================================
--- arm/mv/mv_machdep.c	(revision 232084)
+++ arm/mv/mv_machdep.c	(working copy)
@@ -287,9 +287,19 @@
 		    availmem_regions[i].mr_start + availmem_regions[i].mr_size,
 		    availmem_regions[i].mr_size);
 
-		phys_avail[j] = availmem_regions[i].mr_start;
-		phys_avail[j + 1] = availmem_regions[i].mr_start +
-		    availmem_regions[i].mr_size;
+		/* 
+		 * We should not map the page at PA 0x0000000, the VM can't
+		 * handle it, as pmap_extract() == 0 means failure.
+		 */
+		if (availmem_regions[i].mr_start > 0 ||
+		    availmem_regions[i].mr_size > PAGE_SIZE) {
+			phys_avail[j] = availmem_regions[i].mr_start;
+			if (phys_avail[j] == 0)
+				phys_avail[j] += PAGE_SIZE;
+			phys_avail[j + 1] = availmem_regions[i].mr_start +
+			    availmem_regions[i].mr_size;
+		} else
+			j -= 2;
 	}
 	phys_avail[j] = 0;
 	phys_avail[j + 1] = 0;
Index: arm/xscale/i8134x/crb_machdep.c
===================================================================
--- arm/xscale/i8134x/crb_machdep.c	(revision 232084)
+++ arm/xscale/i8134x/crb_machdep.c	(working copy)
@@ -381,8 +381,8 @@
 	
 	i = 0;
 #ifdef ARM_USE_SMALL_ALLOC
-	phys_avail[i++] = 0x00000000;
-	phys_avail[i++] = 0x00001000; 	/*
+	phys_avail[i++] = 0x00001000;
+	phys_avail[i++] = 0x00002000; 	/*
 					 *XXX: Gross hack to get our
 					 * pages in the vm_page_array
 					 . */