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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3B4B30AF.B925F6A0@mvista.com \
--to=akuster@mvista.com \
--cc=linuxppc-embedded@lists.linuxppc.org \
--cc=torben@kernel.dk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.