linux-kernel - Re: Time Problems with 2.6.23-rc1-gf695baf2

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Date:	Thu, 26 Jul 2007 01:17:14 +0200
From:	Eric Sesterhenn / Snakebyte <snakebyte@....de>
To:	Len Brown <lenb@...nel.org>
Cc:	Eric Sesterhenn / Snakebyte <snakebyte@....de>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	linux-kernel@...r.kernel.org,
	IDE/ATA development list <linux-ide@...r.kernel.org>,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-acpi@...r.kernel.org, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: Time Problems with 2.6.23-rc1-gf695baf2

* Len Brown (lenb@...nel.org) wrote:
> > > > > [   13.506890] ACPI Exception (processor_throttling-0084): AE_NOT_FOUND, Evaluating _PTC [20070126]
> > > > > [   13.507101] ACPI Exception (processor_throttling-0147): AE_NOT_FOUND, Evaluating _TSS [20070126]
> 
> Note that these are just noise -- new code being verbose when looking for an optional feature.
> 
> The fact that hitting the power button a bunch of times
> to make the system move along suggests some sort of missing interrupt problem --
> most likely the timer itself.
> 
> [   13.868574] Probing IDE interface ide0...
> [  387.279576] Clocksource tsc unstable (delta = 370195339890 ns)
> 
> 5-minutes -- a long probe:-)
> 
> > CONFIG_NO_HZ=y
> 
> does CONFIG_NO_HZ=n make a difference?

[   41.007654] EXT3 FS on hda1, internal journal
[  322.133656] Clocksource tsc unstable (delta = 276476174785 ns)
Boot went fine but the system got pretty unresponsive later, 2-3 seconds
delay after keypresses on an idle system and a hang during shutdown which i had to resolve by
pressing the power button (not to switch it of the hard way, but to keep it rebooting)

> > CONFIG_HIGH_RES_TIMERS=y
> 
> does CONFIG_HIGH_RES_TIMERS=n make a difference?

doesnt change anything

> does "irqpoll" make any difference?
> does "notsc" make any difference?
> does "idle=poll" make any difference?

I tried these with the HIGH_RES_TIMERS=n, irqpoll and notsc dont change
a thing, idle=poll makes it boot normally


Greetings, Eric
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