The EOVERFLOW return value is returned from a system call whenever one or more fields of the data structure used to pass information out of the kernel is too small to hold the value.
A number of 32-bit system calls now return EOVERFLOW when
faced with large objects on the 64-bit kernel. While this was already true when dealing
with large files, the fact that
time_t, and its derivative types
struct timeval and
timespec_t now contain 64-bit quantities might mean more EOVERFLOW return
values are observed by 32-bit applications.