On Fri, 2007-12-28 at 15:23 -0800, Dean S. Messing wrote: > Jon, Aaron, I'd like to ask you both to run another test. (Thanks in > advance.) As root, what does > > adjtimex --utc --compare=20 --interval=10 > /tmp/adj_file.txt > > give you? (It will take about 3.5 minutes for this to run) > For the F7 machine on which I'm seeing the weird behaviour, > I get: > > > [root@medulla ~]# adjtimex --utc --compare=20 --interval=10 > --- current --- -- suggested -- > cmos time system-cmos error_ppm tick freq tick freq > 1198880050 0.798082 > 1198880059 0.900194 10211.2 10000 10426576 > 1198880069 0.002171 -89802.3 10000 10426576 10899 4022989 > 1198880078 0.104114 10194.3 10000 10426576 9899 4246426 > 1198880087 0.206065 10195.1 10000 10426576 9899 4194864 > 1198880096 0.308030 10196.5 10000 10426576 9899 4102676 > 1198880105 0.409981 10195.1 10000 10426576 9899 4193301 > 1198880114 0.511942 10196.1 10000 10426576 9899 4129239 > 1198880123 0.612893 10095.1 10000 10426576 9900 4192826 > 1198880132 0.714856 10196.3 10000 10426576 9899 4116739 > 1198880141 0.816836 10198.0 10000 10426576 9899 4002676 > 1198880150 0.918770 10193.4 10000 10426576 9899 4305801 > 1198880160 0.020729 -89804.1 10000 10426576 10899 4141739 > 1198880169 0.122682 10195.3 10000 10426576 9899 4180801 > 1198880178 0.224641 10195.9 10000 10426576 9899 4141739 > 1198880187 0.326589 10194.8 10000 10426576 9899 4213614 > 1198880196 0.428548 10195.9 10000 10426576 9899 4141739 > 1198880205 0.530505 10195.7 10000 10426576 9899 4155801 > 1198880214 0.632459 10195.4 10000 10426576 9899 4174551 > 1198880223 0.734426 10196.7 10000 10426576 9899 4088614 > I have no idea what's happening on my F7 system to cause the strange > behaviour. Does anyone else? > > > Dean > Could this be caused by some funny resolution of the system time delivered by the RTC to the OS? If it delivers time only in seconds, by uses some strange divider internally, one could see this behaviour..... The RTC might still be accurate, but might vary upto one second from the system clock. Louis
