Re: wrong uptime

[YONETANI Tomokazu <qhwt+dfly@xxxxxxxxxx>]

On Fri, Dec 03, 2004 at 03:44:14PM -0800, Paul Herman wrote:
> On Sat, 3 Apr 2004, YONETANI Tomokazu wrote:
> 
> >Is anyone else seeing incorrect uptime like this? I've been seeing this
> >(and sometimes negative uptime) since the last changes to the clock code.
> >
> >$ uptime; last -4 reboot shutdown
> >12:32PM  up 2 days, 14:46, 2 users, load averages: 0.00, 0.03, 0.00
> >reboot           ~                         Sat Apr  3 11:53
> >shutdown         ~                         Wed Mar 31 21:46
> >reboot           ~                         Wed Mar 31 20:46
> >shutdown         ~                         Sat Mar 27 18:59
> 
> Hello YONETANI-san,
> 
> I'm seeing a bug in DragonFlyBSD that was caused by the fix to your 
> uptime problem in April.  Now, if you call settimeofday(2), such as 
> using 'ntpdate -b', the uptime is set to twice the real uptime. 
> boottime is definately set incorectly.
> 
> I wonder, if you revert kern_clock.c:1.19 (i.e. set boottime = 
> basetime) do you still see your problem from April 2003?  I can't 
> seem to reproduce it at all.

I've confirmed that it doesn't. At lease uptime, ntpdate and ps are working
correctly. I'm not 100% sure that this change affects other parts of the
system that depend on this twisted boottime though.