ntp causes time to accelerate

Bug #1307037 reported by James
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
ntp (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

1)
Description: Ubuntu 14.04 LTS
Release: 14.04

2)
ntp:
  Installed: (none)
  Candidate: 1:4.2.6.p5+dfsg-3ubuntu2
  Version table:
     1:4.2.6.p5+dfsg-3ubuntu2 0
        500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

3) normal time evolution
4) accelerating/decelerating time

My clock time accelerates and decelerates. Everything is normal in the bios, however in Trusty I get this strange behavior. I launched a remote session and recorded the following from time.is in a chrome browser session to show the problem:

https://www.youtube.com/watch?v=BpQ7kdkA34g

Note the speedup of the clock (esp at the 20 sec mark) and the major drift

If I uninstall ntp, I don't experience these problems. I was changing ntp servers before I purged ntp, but I don't see why this would happen with any server. I also was having problems with my computer starting (ram timing issues?) but it works fine now, and I wasn't having this problem in the bios, only in ubuntu. ACPI also was disabled in the bios. And the only kernel option I'm passing is "text". Sorry I can't give any other information, but if you have any questions, I can try my best to answer them.

James (morris-570)
description: updated
Revision history for this message
James (morris-570) wrote :

So after messing with the computer, it seems that the problem was there with ntp. So I'm not certain it's related to ntp. Sorry about that. But I searched google high and low, and I couldn't find a single person that was having this problem. I suspect it might be something to do with MB/Ram/timing, I have no idea.

Revision history for this message
Christian Ehrhardt  (paelzer) wrote :

Hi, I know its been quite some time on this bug, but I'm cleaning up old ntp bugs atm to get a better view.

Reading all the comments and that nothing else ever happened again I set it to incomplete stating that there is not enough info to work on it. And also expecting that it isn't important for the reporter anymore - that way the can time out. If this issue is still important to you please set it to new again and provide more details - especially regarding how one could reproduce it.

Changed in ntp (Ubuntu):
status: New → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for ntp (Ubuntu) because there has been no activity for 60 days.]

Changed in ntp (Ubuntu):
status: Incomplete → Expired
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