cpu_get_mem_sid
if ((err = cpu_get_mem_sid(name, buf, bufsize, &len)) != 0) {
extern int cpu_get_mem_sid(char *, char *, int, int *);
ret = cpu_get_mem_sid(unum, sid, DIMM_SERIAL_ID_LEN,
ret = cpu_get_mem_sid(ecc_err->ecc_unum, sid,
extern int cpu_get_mem_sid(char *unum, char *buf, int buflen, int *lenp);