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SubjectRe: clocksources: order of preference
On Thu, 8 May 2008, Philipp Kohlbecher wrote:
> Thomas Gleixner wrote:
> > We also check the TSC with a watchdog mechanism, which verifies that
> > is is keeping accurate time. When we detect that TSC does not, we
> > replace it by the next available clock source.
> >
> True. In all the cases I know, the watchdog mechanism worked and marked the
> TSC as unstable. The soft lockup only led to a (sometimes considerable) delay
> at boot time.

Yeah, there are some hard to detect cases. This TSC business is a
major PITA.


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