linux-kernel - Re: 2.6.18-rc4-mm1 - time moving at 3x speed, bisect finished

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Message-ID: <20060819105031.GA3190@aitel.hist.no>
Date:	Sat, 19 Aug 2006 12:50:31 +0200
From:	Helge Hafting <helgehaf@...el.hist.no>
To:	Andi Kleen <ak@...e.de>
Cc:	Helge Hafting <helge.hafting@...el.hist.no>,
	john stultz <johnstul@...ibm.com>,
	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org
Subject: Re: 2.6.18-rc4-mm1 - time moving at 3x speed, bisect finished

On Fri, Aug 18, 2006 at 12:55:46PM +0200, Andi Kleen wrote:
> 
> > I have narrowed it down.  2.6.18-rc4 does not have the 3x time
> > problem,  while mm1 have it.  mm1 without the hotfix jiffies
> > patch is just as bad.
> 
> Can you narrow it down to a specific patch in -mm? 
>
The guilty patch is:
ntp-add-ntp_update_frequency.patch

Up to and including the previous patch,
wich is ntp-move-all-the-ntp-related-code-to-ntpc-fix.patch,
everything is fine.  But apply this one, and
time moves at 3x speed.  This makes games interesting,
and the keyboard autorepeat awesome. :-)

The patch found seems reasonable, it is 
definitely time-related.

Thanks to all who sent a tutorial on quilt bisection!

Helge Hafting

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