From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergio Monteiro Basto Subject: ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11, why not in 9 ? Date: Thu, 14 Sep 2006 20:43:13 +0100 Message-ID: <1158262993.4200.14.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from relay3.ptmail.sapo.pt ([212.55.154.23]:64168 "HELO sapo.pt") by vger.kernel.org with SMTP id S1751096AbWINTnM (ORCPT ); Thu, 14 Sep 2006 15:43:12 -0400 Received: from unknown (HELO [172.28.230.85]) (sergiomb@sapo.pt@[194.65.5.235]) (envelope-sender ) by mta10 (qmail-ldap-1.03) with SMTP for ; 14 Sep 2006 19:43:10 -0000 Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: acpi devel Cc: Stian Jordet drivers/acpi/pci_link.c, line #583 acpi_irq_penalty[link->irq.active] += PIRQ_PENALTY_PCI_USING; printk(PREFIX "%s [%s] enabled at IRQ %d\n", acpi_device_name(link->device), acpi_device_bid(link->device), link->irq.active); any clue about this problem ? -------- Forwarded Message -------- From: Sergio Monteiro Basto Subject: Re: [PATCH V3] VIA IRQ quirk behaviour change Date: Wed, 13 Sep 2006 01:48:28 +0100 On Tue, 2006-09-12 at 23:38 +0200, Stian Jordet wrote: > On tir, 2006-09-12 at 13:37 +0100, Sergio Monteiro Basto wrote: > > Ok, as a quick answer, you have a very primitive VIA SMP board, which > > make me remember my old laptop. > > I maintain what a had write in previous emails about this system. > > Seeing the configuration of irqs on windows, USB are in 9, so could be a > > clue. > > If I had your board, I'll try not quirk USB (cause quirk put USB in 11) > > and make USB interrupts work as IO-APIC-edge. > > 9: nnnn nnnn IO-APIC-edge uhci_hcd:usb1, uhci_hcd:usb2, > > uhci_hcd:usb3 > > The point is, that even when I do not quirk (just insert return at the > top of the quirk-function), usb still uses irq 11 (as I wrote here: > http://lkml.org/lkml/2006/9/6/49 ), but won't work. And acpi (on > interrupt 9) gets an interrupt storm, and gets disabled. > Good point , you got on your dmesg of kernel 2.6.18-rc6 (http://lkml.org/lkml/2006/9/10/120) USB Universal Host Controller Interface driver v3.0 ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11 ACPI: PCI Interrupt 0000:00:11.2[D] -> Link [LNKD] -> GSI 11 (level, low) -> IRQ 11 PCI: VIA IRQ fixup for 0000:00:11.2, from 9 to 11 uhci_hcd 0000:00:11.2: UHCI Host Controller uhci_hcd 0000:00:11.2: new USB bus registered, assigned bus number 1 uhci_hcd 0000:00:11.2: irq 11, io base 0x00009800 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 2 ports detected but before ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12 14 15) ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 *10 11 12 14 15) ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 *5 6 7 9 10 11 12 14 15) ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 *9 10 11 12 14 15) LNKD was on 9, so may be the bug is on ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11 you have to investigate :) Further more, your interrupts have 4 steps ACPI: PCI Interrupt 0000:00:11.2[D] -> Link [LNKD] -> GSI 11 (level, low) -> IRQ 11 and mine just got 3 ACPI: PCI Interrupt 0000:00:10.1[A] -> GSI 21 (level, low) -> IRQ 201 > But if I somehow got usb using irq 9, all my problems might vanish... > > -Stian >