kernel: don't panic on nonexistent syscalls

1 files changed, 5 insertions, 0 deletions

diff --git a/src/init/tests/main.c b/src/init/tests/main.c
index c59b390..0ac399b 100644
--- a/src/init/tests/main.c
+++ b/src/init/tests/main.c
@@ -133,6 +133,10 @@ static void test_malloc(void) {
 	free(p1);
 }
 
+static void test_misc(void) {
+	assert(_syscall(~0, 0, 0, 0, 0) < 0); /* try making an invalid syscall */
+}
+
 static void stress_fork(void) {
 	/* run a lot of processes */
 	for (size_t i = 0; i < 2048; i++) {
@@ -150,5 +154,6 @@ void test_all(void) {
 	run_forked(test_memflag);
 	run_forked(test_malloc);
 	run_forked(test_pipe);
+	run_forked(test_misc);
 	run_forked(stress_fork);
 }