[Bug 1307037] [NEW] ntp causes time to accelerate

[James]

Public bug reported:

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.

** Affects: ntp (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

- 
  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
+   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:
+ 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 (1 min 20 mark) and the major
+ 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.

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https://bugs.launchpad.net/bugs/1307037

Title:
  ntp causes time to accelerate

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