From: Armin Kuster <akuster@mvista.com>
To: Torben Mathiasen <torben@kernel.dk>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: RTC drift on Walnut?
Date: Tue, 10 Jul 2001 09:43:27 -0700 [thread overview]
Message-ID: <3B4B30AF.B925F6A0@mvista.com> (raw)
In-Reply-To: 20010709181719.A798@fry
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
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
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2001-07-10 16:43 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-07 20:09 RTC drift on Walnut? Torben Mathiasen
2001-07-09 8:56 ` akuster
2001-07-09 16:17 ` Torben Mathiasen
2001-07-10 16:43 ` Armin Kuster [this message]
2001-07-10 17:25 ` Torben Mathiasen
-- strict thread matches above, loose matches on Subject: below --
2001-07-10 17:29 Wright, David
2001-07-10 17:45 ` Torben Mathiasen
2001-07-13 0:12 ` Mark A. Greer
2001-07-13 0:15 ` Mark A. Greer
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