gistfile1.txt

diff --git a/mono/metadata/sgen-os-posix.c b/mono/metadata/sgen-os-posix.c
index 0a0c4f1..874b039 100644
--- a/mono/metadata/sgen-os-posix.c
+++ b/mono/metadata/sgen-os-posix.c
@@ -127,6 +127,7 @@ suspend_handler (int sig, siginfo_t *siginfo, void *context)
 	int old_errno = errno;
 
 	info = mono_thread_info_current ();
+	printf ("THREAD %p got suspend signal info %p\n", (gpointer)pthread_self (), info);
 
 	if (info) {
 		suspend_thread (info, context);
@@ -177,11 +178,13 @@ mono_sgen_wait_for_suspend_ack (int count)
 
 	for (i = 0; i < count; ++i) {
 		while ((result = MONO_SEM_WAIT (suspend_ack_semaphore_ptr)) != 0) {
+			printf ("\t %d done\n", i + i);
 			if (errno != EINTR) {
 				g_error ("sem_wait ()");
 			}
 		}
 	}
+	printf ("FINISHED WAITING\n");
 }
 
 gboolean
@@ -200,9 +203,10 @@ mono_sgen_thread_handshake (BOOL suspend)
 	int count, result;
 	SgenThreadInfo *info;
 	int signum = suspend ? suspend_signal_num : restart_signal_num;
-
 	MonoNativeThreadId me = mono_native_thread_id_get ();
 
+	printf ("HANDSHAKE for %s\n", suspend ? "suspend" : "restart");
+
 	count = 0;
 	FOREACH_THREAD_SAFE (info) {
 		if (mono_native_thread_id_equals (mono_thread_info_get_tid (info), me)) {
@@ -218,6 +222,7 @@ mono_sgen_thread_handshake (BOOL suspend)
 			info->doing_handshake = FALSE;
 		}
 		result = pthread_kill (mono_thread_info_get_tid (info), signum);
+		printf ("\tpkill %p -> %d\n", (gpointer)mono_thread_info_get_tid (info), result);
 		if (result == 0) {
 			count++;
 		} else {
@@ -225,6 +230,7 @@ mono_sgen_thread_handshake (BOOL suspend)
 		}
 	} END_FOREACH_THREAD_SAFE
 
+	printf ("SIGNALLED %d threads\n", count);
 	mono_sgen_wait_for_suspend_ack (count);
 
 	return count;