Messages in this thread | | | Date | Thu, 8 May 2008 13:46:38 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: 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.
Thanks, tglx
| |