Try not to cause a MemoryError when raising an exception during nterrupt handling.
Step 1 fixes #732
diff --git a/py/objexcept.c b/py/objexcept.c
index 9f42137..b4a831c 100644
--- a/py/objexcept.c
+++ b/py/objexcept.c
@@ -37,6 +37,7 @@
#include "objtype.h"
#include "runtime.h"
#include "runtime0.h"
+#include "gc.h"
typedef struct _mp_obj_exception_t {
mp_obj_base_t base;
@@ -335,6 +336,10 @@
}
void mp_obj_exception_add_traceback(mp_obj_t self_in, qstr file, machine_uint_t line, qstr block) {
+ if (gc_is_locked()) {
+ // We can't allocate memory, so don't bother to try
+ return;
+ }
GET_NATIVE_EXCEPTION(self, self_in);
// for traceback, we are just using the list object for convenience, it's not really a list of Python objects