Hi Daniel,
I am trying to understand the support for expire_time_attr. First there is 
this comment in the code
/** Expiration time interval in seconds for attributes.  Settable with
        Attr_Expiration_Time (should never be set for client export_perms.
     */
    int32_t  expire_time_attr;
But I see this initialization code:
#define GLOBAL_EXPORT_PERMS_INITIALIZER                         \
        .def.anonymous_uid = ANON_UID,                          \
        .def.anonymous_gid = ANON_GID,                          \
        .def.expire_time_attr = 60,                             \
My question is in which configuration block you set Attr_Expiration_Time 
for export_perms and which block set it for attrlist
Thanks, Marc.