fix memory leaks destroying threads

2 files changed, 31 insertions, 0 deletions

diff --git a/tests/create-exhaustion/init.c b/tests/create-exhaustion/init.c
new file mode 100644
index 0000000..d5ac20a
--- /dev/null
+++ b/tests/create-exhaustion/init.c
@@ -0,0 +1,29 @@
+#include <common/test.h>
+
+START(pid, tid, d0, d1, d2, d3)
+{
+	UNUSED(pid);
+	UNUSED(tid);
+	UNUSED(d0);
+	UNUSED(d1);
+	UNUSED(d2);
+	UNUSED(d3);
+
+	size_t old_ram = 0;
+	while (1) {
+		printf("creating new thread\n");
+		id_t new_thread = sys_create((uintptr_t)_start, 1, 2, 3, 4);
+		if (new_thread < 0)
+			break;
+
+		old_ram = sys_conf_get(CONF_RAM_USAGE, 0);
+	}
+
+	/* this might not be guaranteed due to how we're currently mapping the
+	 * rpc stack, but good enough for now */
+	size_t ram = sys_conf_get(CONF_RAM_USAGE, 0);
+	check(ram == old_ram, "'leaked' memory building thread without enough memory\n");
+
+	/* no crash is good enough */
+	ok();
+}
diff --git a/tests/create-exhaustion/source.mk b/tests/create-exhaustion/source.mk
new file mode 100644
index 0000000..d096746
--- /dev/null
+++ b/tests/create-exhaustion/source.mk
@@ -0,0 +1,2 @@
+DO	!= ./scripts/gen-prog -n create-exhaustion -p init init.c
+DO	!= ./scripts/gen-simple -n create-exhaustion -p init