monthly run output - confusion

R

rajarshi

Hi,
My FreeBSD server gave the following monthly run output for the last month. It says invalid time values. What is the significance of this message? Can I ignore it or is there something wrong.

Code: 
Doing login accounting:
([color="Red"]Skipped 79 of 193 records due to invalid time values[/color])
	total               15.83
	rajarshi            15.82
	arnav                0.00

-- End of monthly output --

Thanks,
Rajarshi
 
This may be caused by (or related to)

last(1)

Code: 
BUGS
     If a login shell should terminate abnormally for some reason, it is
     likely that a logout record will not be written to the wtmp file.  In
     this case, last will indicate the logout time as "shutdown".

Another cause may be (ntpd/ntpdate) time shifts during a short login session, putting the logout time before the login time, which should only be possible in theory (the quantum mechanics type).
 
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