--- old/src/share/vm/memory/defNewGeneration.cpp	2012-05-08 16:12:34.283366000 +0200
+++ new/src/share/vm/memory/defNewGeneration.cpp	2012-05-08 16:12:33.341312100 +0200
@@ -548,7 +548,7 @@
 
   init_assuming_no_promotion_failure();
 
-  TraceTime t1("GC", PrintGC && !PrintGCDetails, true, gclog_or_tty);
+  TraceTime t1(GCCauseString("GC", gch->gc_cause()), PrintGC && !PrintGCDetails, true, gclog_or_tty);
   // Capture heap used before collection (for printing).
   size_t gch_prev_used = gch->used();