diff -r fc06cd9b42c7 -r 6270f80a7331 src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Fri Oct 23 14:34:27 2009 -0400
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Wed Sep 30 14:50:51 2009 -0400
@@ -2371,8 +2371,9 @@
       gclog_or_tty->print_cr("Heap:");
       print_on(gclog_or_tty, true /* extended */);
       gclog_or_tty->print_cr("");
-      if (VerifyDuringGC && G1VerifyConcMarkPrintReachable) {
-        concurrent_mark()->print_prev_bitmap_reachable();
+      if (VerifyDuringGC && G1VerifyDuringGCPrintReachable) {
+        concurrent_mark()->print_reachable(use_prev_marking,
+                                           "failed-verification");
       }
       gclog_or_tty->flush();
     }