diff -r 0b27f3512f9e -r 37f87013dfd8 src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp
--- a/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp	Wed Jun 04 13:51:09 2008 -0700
+++ b/src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp	Thu Jun 05 15:57:56 2008 -0700
@@ -2093,7 +2093,11 @@
   // the known type isn't loaded since the code sanity checks
   // in debug mode and the type isn't required when we know the exact type
   // also check that the type is an array type.
-  if (op->expected_type() == NULL) {
+  // We also, for now, always call the stub if the barrier set requires a
+  // write_ref_pre barrier (which the stub does, but none of the optimized
+  // cases currently does).
+  if (op->expected_type() == NULL ||
+      Universe::heap()->barrier_set()->has_write_ref_pre_barrier()) {
     __ mov(src,     O0);
     __ mov(src_pos, O1);
     __ mov(dst,     O2);