linux-kernel - Re: [BUG] jiffies counter leaps in 2.6.24-rc3

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Date:	Thu, 29 Nov 2007 20:36:24 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Stefano Brivio <stefano.brivio@...imi.it>
Cc:	Dave Jones <davej@...hat.com>, "Rafael J. Wysocki" <rjw@...k.pl>,
	linux-kernel@...r.kernel.org, Michael Buesch <mb@...sch.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Len Brown <lenb@...nel.org>
Subject: Re: [BUG] jiffies counter leaps in 2.6.24-rc3


* Stefano Brivio <stefano.brivio@...imi.it> wrote:

> On Thu, 29 Nov 2007 13:24:02 -0500
> Dave Jones <davej@...hat.com> wrote:
> 
> > On Thu, Nov 29, 2007 at 06:57:43PM +0100, Stefano Brivio wrote:
> 
> >  > Do you want me to comment out adjust_jiffies() and see what happens?
> >  
> > Just for laughs, why not.
> 
> I wanted to laugh, but the behaviour didn't change at all. How boring.

just to make sure there is no tsc impact, does booting with "notsc" 
change anything?

if not, does booting with idle=halt or idle=poll help? [your power usage 
will go up so it's not very useful - but it could help exclude a few 
sources of trouble.]

	Ingo
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