From: Gabriel Paubert <paubert@iram.es>
To: Roger Leigh <rleigh@whinlatter.ukfsn.org>
Cc: Linux Kernel ML <linux-kernel@vger.kernel.org>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
debian-powerpc@lists.debian.org
Subject: Re: 2.6.16-rc2 powerpc timestamp skew
Date: Sun, 12 Feb 2006 18:39:26 +0100 [thread overview]
Message-ID: <20060212173926.GA6254@iram.es> (raw)
In-Reply-To: <87pslspkj5.fsf@hardknott.home.whinlatter.ukfsn.org>
On Sun, Feb 12, 2006 at 05:13:50PM +0000, Roger Leigh wrote:
> Hi folks,
>
> When running a 2.6.16-rc2 kernel on a powerpc system (Mac Mini;
> Freescale 7447A):
>
> $ date && touch f && ls -l f && rm -f f && date
> Sun Feb 12 12:20:14 GMT 2006
> -rw-r--r-- 1 rleigh rleigh 0 2006-02-12 12:23
> Sun Feb 12 12:20:14 GMT 2006
>
> Notice the timestamp is 3 minutes in the future compared with the
> system time. "make" is not a very happy bunny running on this kernel
> due to every touched file being 3 minutes in the future.
>
> When the same command is run on 2.6.15.3:
>
> $ date && touch f && ls -l f && rm -f f && date
> Sun Feb 12 14:27:27 GMT 2006
> -rw-r--r-- 1 rleigh rleigh 0 2006-02-12 14:27
> Sun Feb 12 14:27:27 GMT 2006
>
> In this case the times are identical, as you would expect.
>
> In both these cases, the chrony NTP daemon is running, if that might
> be a problem.
I don't know whether it is reloated, but since I installed
a 2.6.16-rc2 kernel on my G4/466, I have log messages
that claim that the clock error rate is too large for NTP
to correct (larger than 512ppm).
Gabriel
next prev parent reply other threads:[~2006-02-12 17:40 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-12 17:13 2.6.16-rc2 powerpc timestamp skew Roger Leigh
2006-02-12 17:39 ` Gabriel Paubert [this message]
2006-02-12 17:58 ` Roger Leigh
2006-02-12 20:15 ` Bin Zhang
2006-02-12 19:55 ` Olaf Hering
2006-02-13 10:57 ` Olaf Hering
2006-02-13 12:51 ` Olaf Hering
2006-02-12 21:33 ` Benjamin Herrenschmidt
2006-02-13 18:34 ` Roger Leigh
2006-02-13 22:34 ` Benjamin Herrenschmidt
2006-02-15 5:27 ` Paul Mackerras
2006-02-15 10:30 ` Olaf Hering
2006-02-15 11:53 ` Mikael Pettersson
2006-02-16 11:30 ` Roger Leigh
2006-02-13 0:13 ` Andrew Morton
2006-02-13 0:41 ` Roger Leigh
2006-02-13 4:00 ` [PATCH] powerpc: dont allow old RTC to be selected Anton Blanchard
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=20060212173926.GA6254@iram.es \
--to=paubert@iram.es \
--cc=benh@kernel.crashing.org \
--cc=debian-powerpc@lists.debian.org \
--cc=linux-kernel@vger.kernel.org \
--cc=rleigh@whinlatter.ukfsn.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox