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

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Message-ID: <653FFBB4508B9042B5D43DC9E18836F5013588F6@scsmsx415.amr.corp.intel.com>
Date:	Tue, 31 Jul 2007 08:15:21 -0700
From:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
To:	"Eric Sesterhenn / Snakebyte" <snakebyte@....de>,
	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>
Cc:	"Len Brown" <lenb@...nel.org>, <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

 

>-----Original Message-----
>From: Eric Sesterhenn / Snakebyte [mailto:snakebyte@....de] 
>Sent: Tuesday, July 31, 2007 7:55 AM
>To: Michal Piotrowski
>Cc: Eric Sesterhenn / Snakebyte; Len Brown; 
>linux-kernel@...r.kernel.org; IDE/ATA development list; 
>Bartlomiej Zolnierkiewicz; linux-acpi@...r.kernel.org; Ingo 
>Molnar; Thomas Gleixner; Pallipadi, Venkatesh
>Subject: Re: Time Problems with 2.6.23-rc1-gf695baf2
>
>* Michal Piotrowski (michal.k.k.piotrowski@...il.com) wrote:
>> Hi Eric,
>> 
>> On 26/07/07, Eric Sesterhenn / Snakebyte <snakebyte@....de> wrote:
>> > * 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
>> 
>> 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 
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