Red Hat Bugzilla – Bug 190919
tickadj unable to set lower than 9000, ntp unable to correct time
Last modified: 2007-11-30 17:07:24 EST
Description of problem:
Version-Release number of selected component (if applicable): Latest RH Ent Kernel
Steps to Reproduce:
1. Run on Opteron dualcore
2. Set up and run ntpd
3. Watch time drift(quickly)
Time advances very quickly, would need to set a lower tick rate.
tickadj does not work as described in manual.
tickadj will not accept a lower value than 9000.
This appears to have an underlying problem because of the limits in adjtimex.
On the system it's running on the hardware clock is so fast that the adjustment
level is exceeded causing no way to keep time correct.
This is probably a hw/kernel issue. Can you take a look at bug 165826? There are
a few things you can try.
Adding 'clock=pmtimer' to the kernel options line in grub.conf has for the most
part fixed this issue.
I still have a couple of probs with ntpd dieing but now it can at least keep
time accurate while it's running.
*** This bug has been marked as a duplicate of 165826 ***