linux-kernel - Re: [git pull] x86/hrtimer/acpi fixes

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Date:	Fri, 7 Dec 2007 19:59:20 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, Len Brown <lenb@...nel.org>,
	Venki Pallipadi <venkatesh.pallipadi@...el.com>
Subject: Re: [git pull] x86/hrtimer/acpi fixes


* Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU> wrote:

> Ingo, I was about to post about timer problems in 2.6.23.9+rt12 when I 
> saw this. Would this be related / should I test / will this solve 
> everything? :-)
> 
> What I'm seeing is jack "delays" that go away if I boot with 
> "idle=poll", just like it was happening a long time ago. Smells like 
> 'time of day' glitches when the process switches cpus (this is on a 
> dual core intel laptop).

does it go away with hpet=disable as well? If yes then there could be a 
relation. If not then it's something else and we need to debug it.

	Ingo
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