linux-kernel - Re: [PATCH] x86-64 highres/dyntick support 2.6.22-rc1-v1

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Message-Id: <200705142342.29994.s0348365@sms.ed.ac.uk>
Date:	Mon, 14 May 2007 23:42:29 +0100
From:	Alistair John Strachan <s0348365@....ed.ac.uk>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
	john stultz <johnstul@...ibm.com>, Ingo Molnar <mingo@...e.hu>,
	Chris Wright <chrisw@...s-sol.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>, Andi Kleen <ak@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] x86-64 highres/dyntick support 2.6.22-rc1-v1

On Monday 14 May 2007 23:05:14 Thomas Gleixner wrote:
> On Mon, 2007-05-14 at 22:15 +0100, Alistair John Strachan wrote:
> > On Monday 14 May 2007 11:26:08 Thomas Gleixner wrote:
> > > I'm pleased to announce an updated version of the x86_64
> > > highres/dyntick support patches against 2.6.22-rc1:
> >
> > [snip]
> >
> > > - Various fixups from Chris Wright
> > > - TSC calibration fix (pointed out by Alistair John Strachan)
> > >
> > > Comments, bugreports, patches are welcome as ususal
> >
> > Neither of the bugs I reported appear to be fixed.
> >
> > I took a clean git tree from the 2.6.22-rc1 tag and patched with this
> > version; my CPU MHz and dmesg counter still appear to be broken (v3 was
> > used).
>
> Sigh. /me feels stupid.
>
> Can you please apply the following patch on top and check, whether it
> fixes the problem ? Please provide the debug output, when it fails.

Doesn't fix the problem, and here is the debug:

TSC calibrated against pm_timer 8927439 9106459 179020 640810145
tsckhz: 135069550000000000 640810145 210779356
Marking TSC unstable due to TSCs unsynchronized
time.c: Detected 210779.356 MHz processor.

(Perhaps if this debug effort has to continue, we could remove some of these 
gentlemen from CC?)

-- 
Cheers,
Alistair.

Final year Computer Science undergraduate.
1F2 55 South Clerk Street, Edinburgh, UK.
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