diff --git a/sys/arm/arm/minidump_machdep.c b/sys/arm/arm/minidump_machdep.c
--- a/sys/arm/arm/minidump_machdep.c
+++ b/sys/arm/arm/minidump_machdep.c
@@ -68,8 +68,11 @@
 static int
 is_dumpable(vm_paddr_t pa)
 {
+	vm_page_t m;
 	int i;
 
+	if ((m = vm_phys_paddr_to_vm_page(pa)) != NULL)
+		return ((m->flags & PG_NODUMP) == 0);
 	for (i = 0; dump_avail[i] != 0 || dump_avail[i + 1] != 0; i += 2) {
 		if (pa >= dump_avail[i] && pa < dump_avail[i + 1])
 			return (1);
diff --git a/sys/i386/i386/minidump_machdep_base.c b/sys/i386/i386/minidump_machdep_base.c
--- a/sys/i386/i386/minidump_machdep_base.c
+++ b/sys/i386/i386/minidump_machdep_base.c
@@ -65,8 +65,11 @@
 static int
 is_dumpable(vm_paddr_t pa)
 {
+	vm_page_t m;
 	int i;
 
+	if ((m = vm_phys_paddr_to_vm_page(pa)) != NULL)
+		return ((m->flags & PG_NODUMP) == 0);
 	for (i = 0; dump_avail[i] != 0 || dump_avail[i + 1] != 0; i += 2) {
 		if (pa >= dump_avail[i] && pa < dump_avail[i + 1])
 			return (1);