diff --git a/src/pkg/debug/proc/regs_linux_amd64.go b/src/pkg/debug/proc/regs_linux_amd64.go
index a9f3569d3a..381be29b17 100644
--- a/src/pkg/debug/proc/regs_linux_amd64.go
+++ b/src/pkg/debug/proc/regs_linux_amd64.go
@@ -71,7 +71,7 @@ func (r *amd64Regs) SetSP(val Word) os.Error {
 	return r.setter(&r.PtraceRegs)
 }
 
-func (r *amd64Regs) Names() []string { return &names }
+func (r *amd64Regs) Names() []string { return names[0:] }
 
 func (r *amd64Regs) Get(i int) Word {
 	switch i {
diff --git a/src/pkg/exp/eval/eval_test.go b/src/pkg/exp/eval/eval_test.go
index cd4bbbbb0a..fcdbeb85c0 100644
--- a/src/pkg/exp/eval/eval_test.go
+++ b/src/pkg/exp/eval/eval_test.go
@@ -205,7 +205,7 @@ func toValue(val interface{}) Value {
 
 type testFunc struct{}
 
-func (*testFunc) NewFrame() *Frame { return &Frame{nil, &[2]Value{}} }
+func (*testFunc) NewFrame() *Frame { return &Frame{nil, make([]Value, 2)} }
 
 func (*testFunc) Call(t *Thread) {
 	n := t.f.Vars[0].(IntValue).Get(t)
@@ -217,7 +217,7 @@ func (*testFunc) Call(t *Thread) {
 
 type oneTwoFunc struct{}
 
-func (*oneTwoFunc) NewFrame() *Frame { return &Frame{nil, &[2]Value{}} }
+func (*oneTwoFunc) NewFrame() *Frame { return &Frame{nil, make([]Value, 2)} }
 
 func (*oneTwoFunc) Call(t *Thread) {
 	t.f.Vars[0].(IntValue).Set(t, 1)