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Message-ID: <5a2cf1f60602060902t40e9dd9fs9574cff2c746d552@mail.gmail.com>
Date: Mon, 6 Feb 2006 18:02:24 +0100
From: jerome lacoste <jerome.lacoste@gmail.com>
To: john stultz <johnstul@us.ibm.com>
Subject: Re: 2.6.12.3 clock drifting twice too fast (amd64)
Cc: lkml <linux-kernel@vger.kernel.org>,
       Marie-Helene Lacoste <manies@tele2.fr>
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On 8/17/05, jerome lacoste <jerome.lacoste@gmail.com> wrote:
> On 8/16/05, john stultz <johnstul@us.ibm.com> wrote:
> > On Tue, 2005-08-16 at 12:10 +0200, jerome lacoste wrote:
> > > Installed stock 2.6.12.3 on a brand new amd64 box with an Asus extreme
> > > AX 300 SE/t mainboard.
> > >
> > > I remember seeing a message in the boot saying something along:
> > >
> > >   "cannot connect to hardware clock."
> > >
> > > And now I see that the time is changing too fast (about 2 seconds each second).
> > [snip]
> > > 0000:00:00.0 Host bridge: ATI Technologies Inc: Unknown device 5951
> >
> > Looks like the AMD/ATI bug.
> >
> > http://bugzilla.kernel.org/show_bug.cgi?id=3927
>
> Sounds like it. I will have to try the patch.
>
> Good catch John!

Didn't have time to try the patch as my disk died. I installed a fresh
ubuntu with 2.6.12 (+ vendor patches) instead of 2.6.12.3, and the
issue disappeared.

So maybe ubuntu backported the aforementionned fix to their kernel.

Anyway, one less thing to worry.

jerome