Red Hat Bugzilla – Bug 172508
Clock runs too fast
Last modified: 2007-11-30 17:11:16 EST
Description of problem:
The clock is running too fast. How much faster depends on the load of the
machine. When it is more or less idle, it can keep within a few percent. When
the load rises (and also means network traffic rises if that might matter), it
goes as much as 30% or more too fast.
Version-Release number of selected component (if applicable):
Always, though load dependent
Steps to Reproduce:
This problem looks similar to some other reports, like bug 163347 and bug
152170. But it is not the same. I've never seen my clock go twice as fast as
it should, and it does vary a lot with load. Also, those bugs seem to concern
ATI motherboards only.
My hardware is an Athlon 64 X2 CPU on an Asus A8N-SLI Deluxe motherboard. It
has an Nvidia nForce 4 chipset.
2.6.14-1.1637_FC4 has been released as an update for FC4.
Please retest with this update, as a large amount of code has been changed in
this release, which may have fixed your problem.
It took me a little while (I hit bug 173020) but now I've been running the
2.6.14-1.1637_FC4smp kernel for a couple of days, and so far ntp has not had any
problems to keep the clock right. This problem seems to be solved.