diff --git a/doc/go1.3.html b/doc/go1.3.html
index 916ed04d25a..466eeb1a16e 100644
--- a/doc/go1.3.html
+++ b/doc/go1.3.html
@@ -379,6 +379,15 @@ In particular, it only calls <a href="/pkg/os/exec/#LookPath"><code>LookPath</co
 when the binary's file name contains no path separators.
 </li>
 
+<li>
+If the main goroutine calls 
+<a href="/pkg/runtime/#Goexit"><code>runtime.Goexit</code>
+and all other goroutines finish execution, the program now always crashes,
+reporting a detected deadlock.
+Earlier versions of Go handled this situation inconsistently: most instances
+were reported as deadlocks, but some trivial cases exited cleanly instead.
+</li>
+
 <li>
 The <a href="/pkg/strconv/#CanBackquote"><code>CanBackquote</code></a>
 function in the <a href="/pkg/strconv/"><code>strconv</code></a> package
diff --git a/src/pkg/runtime/crash_test.go b/src/pkg/runtime/crash_test.go
index cd9520b165e..dbcd9486de4 100644
--- a/src/pkg/runtime/crash_test.go
+++ b/src/pkg/runtime/crash_test.go
@@ -111,8 +111,9 @@ func TestLockedDeadlock2(t *testing.T) {
 
 func TestGoexitDeadlock(t *testing.T) {
 	output := executeTest(t, goexitDeadlockSource, nil)
-	if output != "" {
-		t.Fatalf("expected no output, got:\n%s", output)
+	want := "no goroutines (main called runtime.Goexit) - deadlock!"
+	if !strings.Contains(output, want) {
+		t.Fatalf("output:\n%s\n\nwant output containing: %s", output, want)
 	}
 }
 
@@ -144,13 +145,12 @@ panic: again
 
 }
 
-func TestGoexitExit(t *testing.T) {
+func TestGoexitCrash(t *testing.T) {
 	output := executeTest(t, goexitExitSource, nil)
-	want := ""
-	if output != want {
-		t.Fatalf("output:\n%s\n\nwanted:\n%s", output, want)
+	want := "no goroutines (main called runtime.Goexit) - deadlock!"
+	if !strings.Contains(output, want) {
+		t.Fatalf("output:\n%s\n\nwant output containing: %s", output, want)
 	}
-
 }
 
 const crashSource = `
diff --git a/src/pkg/runtime/extern.go b/src/pkg/runtime/extern.go
index 0c5041d38b1..2466911dd69 100644
--- a/src/pkg/runtime/extern.go
+++ b/src/pkg/runtime/extern.go
@@ -79,6 +79,11 @@ func Gosched()
 
 // Goexit terminates the goroutine that calls it.  No other goroutine is affected.
 // Goexit runs all deferred calls before terminating the goroutine.
+//
+// Calling Goexit from the main goroutine terminates that goroutine
+// without func main returning. Since func main has not returned,
+// the program continues execution of other goroutines.
+// If all other goroutines exit, the program crashes.
 func Goexit()
 
 // Caller reports file and line number information about function invocations on
diff --git a/src/pkg/runtime/proc.c b/src/pkg/runtime/proc.c
index 6b5c031c874..52b02d94bb4 100644
--- a/src/pkg/runtime/proc.c
+++ b/src/pkg/runtime/proc.c
@@ -2501,7 +2501,7 @@ checkdead(void)
 	}
 	runtime·unlock(&allglock);
 	if(grunning == 0)  // possible if main goroutine calls runtime·Goexit()
-		runtime·exit(0);
+		runtime·throw("no goroutines (main called runtime.Goexit) - deadlock!");
 	m->throwing = -1;  // do not dump full stacks
 	runtime·throw("all goroutines are asleep - deadlock!");
 }