Re: Slow system clock?
Colin,
I think that you may be right. Now that I think about it, the problem only seems
to occur after linux has been running for a long period of time without a logon
(i.e. overnight). I think I have the BIOS configured to kick into sleep mode
after a certain time of inactivity. This would make sense as when the system
slows down the timer interrupt servicing would occur less frequently. I couldn't,
however, find a refence to this problem in the Battery Power Mini-HOWTO at www.linux.org.
I'll try turning off BIOS power management overnight tonight and let you know
what happens. BTW, my kernel is not compiled with power management support,
perhaps if I had, this problem wouldn't have occurred? Anyone know for sure?
Scott / Laurent,
Thanks for your suggestions. Yesterday I installed the adjtimex package and
ran adjtimexconfig. It did it's thing and returned. I then ran linux overnight
having set both the CMOS and system clocks to the correct time. Same problem.
Checking it at 6 AM today showed a system time of 1:26, but 'hwclock --show'
indicated that the CMOS is still correct. If, after tonight, I still have problems
I'll post my /etc/adjtime and output from adjtimex -p for scrutiny.
Thanks for all your help,
Jason
>* Laurent PICOULEAU <lcrpic@a2points.com> writes:
>
>> On Thu, 23 Sep, 1999 =E0 10:38:18AM +0000, Jason Christensen wrote:
>>> Would anyone be able to speculate as to why my system (kernel) clock is
=
>slow?
>>> I know that my hardware (CMOS) clock is maintaining a time that does not=
> drift
>>> more than a CMOS clock normally does, but my kernel clock will lose appr=
>oximately
>>> 4 hours in every 9.
>>> =
>
>> Could you post your /etc/adjtime and the result of adjtimex -p ? And veri=
>fy
>> if GMT=3D"" in /etc/default/rcS.
>
>Can it be that your BIOS set the system in sleep mode during that 9
>hours? I have a wrong time whenever that happens (and Laurent is
>right in a sense that adjtime then thinks your clock is slow and
>tries to correct this).
>
>I heard the solution to this problem is mentioned in
>/usr/doc/HOWTO/mini/Battery-Powered.gz, but I haven=B4t read up on
>that topic yet.
>
>HTH,
> Colin
>
>-- =
>
>Colin Marquardt <colin.marquardt@gmx.de>
>
>
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