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From: Thomas Gleixner <tglx@linutronix.de>
To: Stefan Prechtel <stefan.prechtel@googlemail.com>
Cc: Andi Kleen <ak@suse.de>,
	Grzegorz Chwesewicz <grzegorz.chwesewicz@chilan.com>,
	linux-kernel@vger.kernel.org, mingo@elte.hu,
	Len Brown <lenb@kernel.org>, john stultz <johnstul@us.ibm.com>
Subject: Re: BUG lapic: Can't boot on battery (2.6.21-rc{1,2,3,4})
Date: Wed, 21 Mar 2007 14:15:29 +0100	[thread overview]
Message-ID: <1174482929.10840.75.camel@localhost.localdomain> (raw)
In-Reply-To: <b93822910703210604w6bcc2e1dt4cac7f9f9295edf8@mail.gmail.com>

On Wed, 2007-03-21 at 14:04 +0100, Stefan Prechtel wrote:
> I uploaded the output of dmesg (kernel 2.6.21-rc4-git5) (battery / ac)
> and dmidecode
> I can boot on battery with nolapic_timer and the second core is online, too.
> /proc/acpi/processor/C000/ shows the same as before but
> /proc/interrupts has changed:
> 
> (battery)
>            CPU0       CPU1
>   0:      47131          0  local-APIC-edge-fasteoi   timer
> LOC:          0      46978
> 
> (ac)
>            CPU0       CPU1
>   0:      59137          0  local-APIC-edge-fasteoi   timer
> LOC:          0      58984

That's correct. We keep the PIT alive and trigger the lapic timer
interrupt via an IPI.

	tglx



  reply	other threads:[~2007-03-21 13:08 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-19 17:10 Stefan Prechtel
2007-03-19 17:36 ` Thomas Gleixner
2007-03-19 17:48   ` Thomas Gleixner
2007-03-19 18:53     ` Stefan Prechtel
2007-03-19 19:17       ` Stefan Prechtel
2007-03-19 19:27       ` Thomas Gleixner
2007-03-19 19:49         ` Stefan Prechtel
2007-03-19 20:04           ` Thomas Gleixner
2007-03-19 20:35             ` Stefan Prechtel
2007-03-19 20:56               ` Thomas Gleixner
2007-03-19 21:51                 ` Stefan Prechtel
2007-03-20  1:15                   ` Thomas Gleixner
2007-03-20  8:23                     ` Stefan Prechtel
2007-03-20 16:47                       ` Grzegorz Chwesewicz
2007-03-21  9:24                         ` Thomas Gleixner
2007-03-21  9:46                           ` Andi Kleen
2007-03-21 10:10                             ` Thomas Gleixner
2007-03-21 10:37                               ` Andi Kleen
2007-03-21 11:14                                 ` Thomas Gleixner
2007-03-21 12:15                                   ` Thomas Gleixner
2007-03-21 12:33                                     ` Thomas Gleixner
2007-03-21 12:42                                   ` Andi Kleen
2007-03-21 13:04                                     ` Stefan Prechtel
2007-03-21 13:15                                       ` Thomas Gleixner [this message]
2007-03-21 14:14                                       ` [PATCH] i386: disable local apic timer via command line or dmi quirk Thomas Gleixner
2007-03-21 14:09                                         ` Ingo Molnar
2007-03-21 15:14                                           ` Grzegorz Chwesewicz
2007-03-22 20:42                                             ` Stefan Prechtel
2007-03-28  3:28                                         ` Len Brown
2007-03-28  3:38                                           ` Len Brown
2007-03-28  9:13                                           ` Thomas Gleixner

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