From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Benjamin Gamsa <ben@somanetworks.com>
Cc: Paul Mackerras <paulus@samba.org>,
linuxppc-dev@lists.ozlabs.org,
Sean MacLennan <smaclennan@pikatech.com>
Subject: Re: time jumps forward/backwards
Date: Tue, 01 Sep 2009 20:49:14 +1000 [thread overview]
Message-ID: <1251802154.14675.346.camel@pasglop> (raw)
In-Reply-To: <4A9C9BA3.6020105@somanetworks.com>
On Mon, 2009-08-31 at 23:57 -0400, Benjamin Gamsa wrote:
> Sean MacLennan wrote:
> > On Mon, 31 Aug 2009 22:20:00 -0400
> > Benjamin Gamsa <ben@somanetworks.com> wrote:
> >
> >> For what it's worth, the problem occurs even when ntp is not even
> >> started.
> >
> > This is grasping, but could it have anything to do with the jiffies
> > wrapping near startup?
> >
>
> I don't know how to test it, but I don't think so, since there are
> multiple of these glitches over an extended period of time.
I'm not familiar with all the FSL processor variants, but is this
an UP or an SMP platform ? In the later case, are all the core timebases
properly synchronized ?
Cheers,
Ben.
next prev parent reply other threads:[~2009-09-01 10:49 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-31 21:53 time jumps forward/backwards Ben Gamsa
2009-08-31 23:45 ` Paul Mackerras
2009-09-01 0:01 ` Benjamin Gamsa
2009-09-01 0:09 ` Benjamin Gamsa
2009-09-01 2:20 ` Benjamin Gamsa
2009-09-01 2:31 ` Sean MacLennan
2009-09-01 3:57 ` Benjamin Gamsa
2009-09-01 10:49 ` Benjamin Herrenschmidt [this message]
2009-09-01 11:20 ` Benjamin Gamsa
2009-09-03 12:49 ` Ben Gamsa
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