Clock skew on FC13
Tom Horsley
horsley1953 at gmail.com
Tue Dec 7 23:56:30 UTC 2010
On Wed, 08 Dec 2010 09:59:26 +1030
Tim wrote:
> I don't think the original poster said which clock was skewing.
There are indeed a gazillion or so clock options you can
specify on the kernel command line. Perhaps making it
use a different clock source would work better. (The kernel
may believe it knows something about the clock it picked
which isn't actually true on the motherboard in question).
From the kernel-parameters.txt file in the kernel-doc
rpm:
clock= [BUGS=X86-32, HW] gettimeofday clocksource override.
[Deprecated]
Forces specified clocksource (if available) to be used
when calculating gettimeofday(). If specified
clocksource is not available, it defaults to PIT.
Format: { pit | tsc | cyclone | pmtmr }
clocksource= [GENERIC_TIME] Override the default clocksource
Format: <string>
Override the default clocksource and use the clocksource
with the name specified.
Some clocksource names to choose from, depending on
the platform:
[all] jiffies (this is the base, fallback clocksource)
[ACPI] acpi_pm
[ARM] imx_timer1,OSTS,netx_timer,mpu_timer2,
pxa_timer,timer3,32k_counter,timer0_1
[AVR32] avr32
[X86-32] pit,hpet,tsc,vmi-timer;
scx200_hrt on Geode; cyclone on IBM x440
[MIPS] MIPS
[PARISC] cr16
[S390] tod
[SH] SuperH
[SPARC64] tick
[X86-64] hpet,tsc
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