RTC drift on Walnut?

Armin Kuster akuster at mvista.com
Wed Jul 11 02:43:27 EST 2001

Torben Mathiasen wrote:

> Thanks. I'm pretty sure its kernel related, I bet something's wrong in
> arch/ppc/kernel/time.c. The kernel just reads the RTC at startup, and maintains
> the system clok via the timer-interrupts. Coming to think of it, I'm not sure
> if the hardware RTC drifts, or if its just the kernel 'software' clock. Will
> check on that.
> Maybe we're turning ints off for too long somewhere...
> Thanks,
> Torben


I am running on what will be the next version of 405 kernel from
MontaVista.  It is using the new todc_time routines.  I saw about a 30
second drift.

-- armin

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