Re: the clock stopped in F7 ?!

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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


on the kernel commandline, and see if that makes any odds.


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