Index: Modules/_multiprocessing/pipe_connection.c =================================================================== --- Modules/_multiprocessing/pipe_connection.c (revision 65380) +++ Modules/_multiprocessing/pipe_connection.c (working copy) @@ -68,7 +68,7 @@ memcpy(*newbuffer, buffer, length); Py_BEGIN_ALLOW_THREADS - ret = ReadFile(conn->handle, *newbuffer+length, left, &length, NULL) + ret = ReadFile(conn->handle, *newbuffer+length, left, &length, NULL); Py_END_ALLOW_THREADS if (ret) { assert(length == left);