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Date: Mon, 7 Jul 2008 09:36:35 +0200
From: Ingo Molnar <mingo@...e.hu>
To: "Rafael J. Wysocki" <rjw@...k.pl>
Cc: Matthew Garrett <mjg59@...f.ucam.org>,
"Maciej W. Rozycki" <macro@...ux-mips.org>,
Len Brown <lenb@...nel.org>,
Thomas Gleixner <tglx@...utronix.de>,
linux-next@...r.kernel.org, linux-acpi@...r.kernel.org,
linux-kernel@...r.kernel.org, Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH 2/2] acpi: Disable IRQ 0 through I/O APIC for some HP
systems
* Ingo Molnar <mingo@...e.hu> wrote:
> > Please note two things:
> > (1) The whole acpi_dmi_table[] thing originally depended on __i386__, so it
> > wouldn't work on x86-64 no matter what. I removed that dependecy, but
> > I have no idea why it was there and so I'm not sure if that's correct.
>
> > (2) The clear_IO_APIC_pin(apic1, pin1) done if
> > disable_irq0_through_ioapic is true is absolutely essential. The
> > symptoms are 100% reproducible without it.
>
> thanks, applied to tip/x86, to give this some more testing.
i know you havent submitted this for inclusion yet, but FYI it wont
build on 32-bit with a config like:
http://redhat.com/~mingo/misc/config-Mon_Jul__7_09_22_45_CEST_2008.bad
Ingo
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