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Message-ID: <20070321140930.GA5717@elte.hu> Date: Wed, 21 Mar 2007 15:09:30 +0100 From: Ingo Molnar <mingo@...e.hu> To: Thomas Gleixner <tglx@...utronix.de> Cc: Stefan Prechtel <stefan.prechtel@...glemail.com>, Andi Kleen <ak@...e.de>, Grzegorz Chwesewicz <grzegorz.chwesewicz@...lan.com>, linux-kernel@...r.kernel.org, Len Brown <lenb@...nel.org>, john stultz <johnstul@...ibm.com>, Andrew Morton <akpm@...ux-foundation.org>, Adrian Bunk <bunk@...sta.de>, Arjan van de Ven <arjan@...radead.org> Subject: Re: [PATCH] i386: disable local apic timer via command line or dmi quirk * Thomas Gleixner <tglx@...utronix.de> wrote: > The local APIC timer stops to work in deeper C-States. This is handled > by the ACPI code and a broadcast mechanism in the clockevents / tick > managment code. > > Some systems do not expose the deeper C-States to the kernel, but > switch into deeper C-States behind the kernels back. This delays the > local apic timer interrupts for ever and makes the systems unusable. > > Add a command line option to disable the local apic timer and a dmi > quirk for known broken systems. > > Signed-off-by: Thomas Gleixner <tglx@...utronix.de> Acked-by: Ingo Molnar <mingo@...e.hu> nice work! Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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