From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: [PATCH 2/2] acpi: Disable IRQ 0 through I/O APIC for some HP systems Date: Mon, 7 Jul 2008 09:36:35 +0200 Message-ID: <20080707073635.GA22946@elte.hu> References: <20080701202453.GD4896@elte.hu> <200807070102.38854.rjw@sisk.pl> <200807070319.29470.rjw@sisk.pl> <20080707071706.GA3326@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20080707071706.GA3326@elte.hu> Sender: linux-kernel-owner@vger.kernel.org To: "Rafael J. Wysocki" Cc: Matthew Garrett , "Maciej W. Rozycki" , Len Brown , Thomas Gleixner , linux-next@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Andi Kleen List-Id: linux-next.vger.kernel.org * Ingo Molnar 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