linux-kernel - Re: AMD X2 unsynced TSC fix?

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Message-Id: <1162253662.27037.90.camel@mindpipe>
Date:	Mon, 30 Oct 2006 19:14:21 -0500
From:	Lee Revell <rlrevell@...-job.com>
To:	sergio@...giomb.no-ip.org
Cc:	Andi Kleen <ak@...e.de>, Chris Friesen <cfriesen@...tel.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	john stultz <johnstul@...ibm.com>, suresh.b.siddha@...el.com
Subject: Re: AMD X2 unsynced TSC fix?

On Tue, 2006-10-31 at 00:03 +0000, Sergio Monteiro Basto wrote:
> On Mon, 2006-10-30 at 16:23 +0100, Andi Kleen wrote:
> > Can you give us a full dmesg without noapic or notsc please? 
> > 
> 
> yes , I send an dmesg of 2.6.18-git20, dmesg27
> and other dmesg of kernel 2.6.18.1, dmesg30
> To vanilla kernel I just add this patch:
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.19-rc1/2.6.19-rc1-mm1/broken-out/gregkh-pci-pci-via-irq-quirk-behaviour-change.patch
> 
> > Adding Suresh to cc too because he spotted a similar problem last
> >  time. 
> 
> Feel free to ask any test, test patches or even access to this machine. 

Maybe I've been running -rt for too long but I don't see clocksource
selection - does 2.6.18 not have John Stultz's GTOD rework?

How can it know not to use TSC on machines where it's unstable?

Lee

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