diff -r a7c0f60a1294 -r 294e48b4f704 hotspot/src/share/vm/gc/g1/heapRegionManager.inline.hpp
--- a/hotspot/src/share/vm/gc/g1/heapRegionManager.inline.hpp	Mon Sep 28 15:05:02 2015 +0200
+++ b/hotspot/src/share/vm/gc/g1/heapRegionManager.inline.hpp	Tue Sep 29 11:02:08 2015 +0200
@@ -31,9 +31,9 @@
 
 inline HeapRegion* HeapRegionManager::addr_to_region(HeapWord* addr) const {
   assert(addr < heap_end(),
-        err_msg("addr: " PTR_FORMAT " end: " PTR_FORMAT, p2i(addr), p2i(heap_end())));
+        "addr: " PTR_FORMAT " end: " PTR_FORMAT, p2i(addr), p2i(heap_end()));
   assert(addr >= heap_bottom(),
-        err_msg("addr: " PTR_FORMAT " bottom: " PTR_FORMAT, p2i(addr), p2i(heap_bottom())));
+        "addr: " PTR_FORMAT " bottom: " PTR_FORMAT, p2i(addr), p2i(heap_bottom()));
 
   HeapRegion* hr = _regions.get_by_address(addr);
   return hr;