On Fri, Jun 11, 2010 at 7:03 AM, Jilles Tjoelker <jil...@stack.nl> wrote: > On Fri, Jun 11, 2010 at 12:35:05AM +0800, Jansen Gotis wrote: >> Hi, for the past couple of months since moving to RELENG_8 I've been >> receiving "calcru: runtime went backwards" messages on the console. > <snip> > > This may well be a manifestation of a brokenness (which should not be > unknown) in how FreeBSD stores CPU time utilization. The time is > maintained in "CPU ticks" (CPU clock cycles), so if the clock frequency > changes, the values of existing processes will be wrong (a jump when > converted to seconds). When calcru detects this, it generates messages > like the above. If this analysis is right, the messages can be ignored, > but indicate that CPU time statistics may be inaccurate. >
You're probably right, the messages can be ignored. I don't see any issues other than the messages being printed on the console; I don't experience freezing, etc. It just struck me as weird because searching the -current and -stable mailing lists does not show anyone else having the issue as recently as I have. Just some more info to add which I forgot about last time...setting kern.hz to 100 did not help. Thanks for the reply. Best regards, Jansen _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
