-----Original Message-----
From: Eric Sesterhenn / Snakebyte [mailto:snakebyte@gmx.de] 
Sent: Tuesday, July 31, 2007 7:55 AM
To: Michal Piotrowski
Cc: Eric Sesterhenn / Snakebyte; Len Brown; 
linux-kernel@vger.kernel.org; IDE/ATA development list; 
Bartlomiej Zolnierkiewicz; linux-acpi@vger.kernel.org; Ingo 
Molnar; Thomas Gleixner; Pallipadi, Venkatesh
Subject: Re: Time Problems with 2.6.23-rc1-gf695baf2

* Michal Piotrowski (michal.k.k.piotrowski@gmail.com) wrote:

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Hi Eric,

On 26/07/07, Eric Sesterhenn / Snakebyte [off-list ref] wrote:

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* Len Brown (lenb@kernel.org) wrote:

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[   13.506890] ACPI Exception 

(processor_throttling-0084): AE_NOT_FOUND, Evaluating _PTC [20070126]

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[   13.507101] ACPI Exception 

(processor_throttling-0147): AE_NOT_FOUND, Evaluating _TSS [20070126]

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Note that these are just noise -- new code being verbose 

when looking for an optional feature.

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The fact that hitting the power button a bunch of times
to make the system move along suggests some sort of 

missing interrupt problem --

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most likely the timer itself.

[   13.868574] Probing IDE interface ide0...
[  387.279576] Clocksource tsc unstable (delta = 370195339890 ns)

5-minutes -- a long probe:-)

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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

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delay after keypresses on an idle system and a hang during 

shutdown which i had to resolve by

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pressing the power button (not to switch it of the hard 

way, but to keep it rebooting)

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CONFIG_HIGH_RES_TIMERS=y

does CONFIG_HIGH_RES_TIMERS=n make a difference?

doesnt change anything

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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

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a thing, idle=poll makes it boot normally

Please use git-bisect

git-bisect start
git-bisect bad
git-bisect good 7dcca30a32aadb0520417521b0c44f42d09fe05c

took some time, but i got a scape goat, added venkatesh to the CC list,

Eric,

This means things should work fine with processor.max_cstate=2 boot
option
as well. Can you please double check that.

Also, please send in the acpidump from your system.

Thanks,
Venki