Re: the clock stopped in F7 ?!

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 2007-08-27 at 10:22 +0100, Andy Green wrote:
> Somebody in the thread at some point said:
> 
> > I've got a Fedora 7 (x86) system that started exhibiting truly bizarre
> > behavior about a week ago.  Basically, the clock stopped working.  If
> > I run 'date' it shows the date/time from a few days earlier, and it
> 
> Recent kernels have become "tickless", a neat idea to stop regular
> wakeups hundreds of times a second and save on power.  AIUI to track
> time it now refers to a hardware "clocksource" to find out time instead
> of counting the "tick" interrupts.
> 
> You can find out what hardware clocksources you have on your machine
> like this
> 
> cat /sys/devices/system/clocksource/clocksource0/available_clocksource
> 
> For example I get
> 
> hpet hpet acpi_pm jiffies tsc
> 
> (hpet twice?  maybe due to dualcore?).  You can find out the clocksource
> you are currently using here
> 
> cat /sys/devices/system/clocksource/clocksource0/current_clocksource
> 
> hpet is the latest and greatest, but what I would try is to force the
> kernel to use something other than it is using at the moment, by
> something like this
> 
> clocksource=tsc
> 
> on the kernel commandline, and see if that makes any odds.
> 
> -Andy
> 
But what does the result mean? The result of:
cat /sys/devices/system/clocksource/clocksource0/available_clocksource
is: acpi_pm pit jiffies tsc
What does that tell me?
--
=======================================================================
Be wary of strong drink. It can make you shoot at tax collectors and
miss. -- Lazarus Long, "Time Enough for Love"
=======================================================================
Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam@xxxxxxxxxxxxx


[Index of Archives]     [Current Fedora Users]     [Fedora Desktop]     [Fedora SELinux]     [Yosemite News]     [Yosemite Photos]     [KDE Users]     [Fedora Tools]     [Fedora Docs]

  Powered by Linux