linux-kernel - Re: BUG lapic: Can't boot on battery (2.6.21-rc{1,2,3,4})

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Date:	Mon, 19 Mar 2007 22:51:19 +0100
From:	"Stefan Prechtel" <stefan.prechtel@...glemail.com>
To:	tglx@...utronix.de
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu,
	"Len Brown" <lenb@...nel.org>, "Andi Kleen" <ak@...e.de>,
	"john stultz" <johnstul@...ibm.com>
Subject: Re: BUG lapic: Can't boot on battery (2.6.21-rc{1,2,3,4})

2007/3/19, Thomas Gleixner <tglx@...utronix.de>:
> On Mon, 2007-03-19 at 21:35 +0100, Stefan Prechtel wrote:
> >            CPU0       CPU1
> >  0:      28289          0  local-APIC-edge-fasteio   timer
> > ...
> > LOC:      28237      28236
> >
> > after a read: (I hope that is this what you want :-)
> >            CPU0       CPU1
> >   0:      30344          0  local-APIC-edge-fasteio   timer
> > ...
> > LOC:      30292      30291
>
> Is this with AC plugged in ? If yes, please provide the same numbers for
> battery mode.

Yes. And here is the output for battery mode (2.6.20):
           CPU0       CPU1
  0:     292153          0  local-APIC-edge-fasteio   timer
LOC:     292114     292113

           CPU0       CPU1
  0:     293263          0  local-APIC-edge-fasteio   timer
LOC:     293224     293223



> What's the output of
> cat /proc/acpi/processor/C000/power
>
> for 2.6.20 and 2.6.21-rc4-latest-git with and w/o AC ?

2.6.20 / 2.6.21: (both the same)
battery / ac (both the same)
# cat /proc/acpi/processor/C000/power
active state:            C1
max_cstate:              C8
bus master activity:     00000000
maximum allowed latency: 2000 usec
states:
   *C1:                  type[C1] promotion[--] demotion[--] latency[000] usage[
00000000] duration[00000000000000000000]
# cat /proc/acpi/processor/C001/power
active state:            C1
max_cstate:              C8
bus master activity:     00000000
maximum allowed latency: 2000 usec
states:
   *C1:                  type[C1] promotion[--] demotion[--] latency[000] usage[
00000000] duration[00000000000000000000]



> Can you also please upload a bootlog with and without AC of 2.6.20 to
> bugzilla ?
Yes, one moment please. I will upload files..

> Thanks,
>
>         tglx

Thanks too ;)
- Stefan Prechtel
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