The Case Of Runaway Clock

This unique problem I have never encounter before. After we adjust the time and install Network TIme protocol Service (NTP) the clock is still drifting for more than 8 hours in a day.

I had Google for an answer, its may happened be because of the internal clock in the Linux operating systerm. In detail time drifting occurs because of changes made by the operating system.

In-depth,  hwclock depend on the file /etc/adjtime to check for drifting information to make the adjustment and /etc/adjtime will make the correction to system to make sure the clock back in order.

My problem occur may due to drifting information below ... Look at the number 550.026225

*** Before delete ***

/etc/adjtime

# file /etc/adjtime
/etc/adjtime: ASCII text

# cat /etc/adjtime
550.026225 1280462978 0.000000
1280462978
LOCAL

I delete /etc/adjtime, adjust the time and hwclock -w to sysnc with hardware clock and a new /etc/adjtime will be made ....

I'm not sure this will solve the problem because it takes 24 hours to see whether drifting with large gap different occurs or not.

*** After delete and recreate ***

/etc/adjtime

# cat /etc/adjtime
0.000000 1280464987 0.000000
1280464987
LOCAL

Format /etc/adjtime

The format of the adjtime file is, in ASCII:

Line 1: 3 numbers, separated by blanks: 1) systematic drift rate in seconds per day, floating point decimal; 2) Resulting number of seconds  since 1969 UTC of most recent adjustment or calibration, decimal integer; 3) zero (for compatibility with clock(8)) as a decimal integer.

Line 2: 1 number: Resulting number of seconds since 1969 UTC of most recent calibration.  Zero if there has been no calibration yet or it is known that any previous calibration is moot (for example, because the Hardware Clock has been found, since that calibration,  not  to  contain  a  valid
time).  This is a decimal integer.

Line  3:  "UTC"  or  "LOCAL".   Tells whether the Hardware Clock is set to Coordinated Universal Time or local time.  You can always override this value with options on the hwclock command line.

Call For Paper Malaysian Government Open Source Software Conference 2010 (MyGOSSCON 2010)

Call For Paper Malaysian Government Open Source Software Conference 2010 (MyGOSSCON 2010)

The Malaysian Government's premier annual OSS conference, “The Malaysian Government Open Source Software Conference” (MyGOSSCON 2010) will be staged for its fourth successive year from 2nd to 3rd of November 2010 at Putrajaya International Convention Centre, Putrajaya.

We are now inviting all OSS enthusiasts and luminaries from ICT Industry and OSS communities to submit their papers through "Call For Papers" which is now open! All papers will be accepted until Wednesday, 15th September 2010 and it is open for local and international submissions.

CFP registration form


MyGOSSCON is organised by the Malaysian Administrative Modernisation and Management Planning Unit (MAMPU), an agency under the Prime Minister Department to enhance the quality of public service delivery through OSS and to intensify the development and implementation OSS.

The conference is themed “OSS - Innovation for National Transformation” aimed at providing a platform for decision makers, academia and IT practitioners to share, exchange and refresh ideas and information on real OSS examples, practical information and strategies.

MyGOSSCON 2010 will feature the most spirited OSS competition events:

1. The first 36-Hour Open Source Web Application Development Contest
2. OSS Case Studies Awards (Open for submission now)
3. OpenOffice.org Competition

Other main highlights of MyGOSSCON 2010
---------------------------------------

1.Keynote and track sessions
2.OSS Showcase exhibition
3.Lightning Talks
4.Birds-of-a-Feather (BOF) Social Networking Cocktail
5.Many more

For further information, please visit http://mygosscon.oscc.org.my/ for any other latest information on MyGOSSCON 2010.

Please feel free to contact OSCC MAMPU for any inquiries at 603 83191200 or Fax: 603 83193206 or e-mail: [email protected]

Thank you.

---------

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Harisfazillah Jamel uses Aardvark to ask questions & give answers



Harisfazillah Jamel aka Linuxmalaysia
Malaysia OSS Community.


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