ktr_ts
nanotime(&kth->ktr_ts);
kte->kte_kth.ktr_ts.tv_sec = ts->tv_sec;
kte->kte_kth.ktr_ts.tv_nsec = ts->tv_nsec;
temp.tv_sec = kth->ktr_ts.tv_sec;
temp.tv_nsec = kth->ktr_ts.tv_nsec;
starttime.tv_sec = kth->ktr_ts.tv_sec;
starttime.tv_nsec = kth->ktr_ts.tv_nsec;
timespecsub(&kth->ktr_ts, &starttime, &temp);
timespecsub(&kth->ktr_ts, &prevtime, &temp);
prevtime.tv_sec = kth->ktr_ts.tv_sec;
prevtime.tv_nsec = kth->ktr_ts.tv_nsec;
prevtime.ts.tv_sec = kth->ktr_ts.tv_sec;
prevtime.ts.tv_nsec = kth->ktr_ts.tv_nsec;
temp.ts.tv_sec = kth->ktr_ts.tv_sec;
temp.ts.tv_nsec = kth->ktr_ts.tv_nsec;