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    SubjectRe: 2.6.8-rc4-mm1 doesn't boot
    Date
    On Tuesday 10 August 2004 11:32 am, Adrian Bunk wrote:
    > On Tue, Aug 10, 2004 at 09:59:18AM -0600, Bjorn Helgaas wrote:
    > > On Tuesday 10 August 2004 9:09 am, Adrian Bunk wrote:
    > > > 2.6.8-rc3-mm1 boots fine on my computer.
    > > > 2.6.8-rc4-mm1 doesn't boot.
    > > > 2.6.8-rc4-mm1 with pci=routeirq boots.

    I'm confused. I think the hang is related to IDE, but that
    code all looks OK. I expected to see a note about ACPI routing
    the IDE interrupt, something like this:

    > SIS5513: IDE controller at PCI slot 0000:00:02.5
    ACPI: PCI interrupt 0000:00:02.5[A] -> GSI XX (level, low) -> IRQ YY
    > SIS5513: chipset revision 0

    I don't see a path where the IDE device could be found without
    that "ACPI: PCI interrupt ..." message being printed.

    I also would have expected the hang to occur somewhere after the
    "SIS5513: IDE controller at PCI slot 0000:00:02.5" message, but
    apparently it happens *before* that.

    Can you apply the following patch to 2.6.8-rc4-mm1 and collect all
    the kernel output when booting with "pci=routeirq"? It won't fix
    the problem, but maybe it will give me some ideas.



    --- 2.6.8-rc4-mm1/arch/i386/pci/common.c.orig 2004-08-10 16:26:07.430867199 -0600
    +++ 2.6.8-rc4-mm1/arch/i386/pci/common.c 2004-08-10 16:26:47.012897964 -0600
    @@ -247,5 +247,6 @@
    if ((err = pcibios_enable_resources(dev, mask)) < 0)
    return err;

    + printk("%s: enable IRQ for %s using 0x%p\n", __FUNCTION__, pci_name(dev), pcibios_enable_irq);
    return pcibios_enable_irq(dev);
    }
    --- 2.6.8-rc4-mm1/drivers/acpi/pci_irq.c.orig 2004-08-10 16:34:49.656446739 -0600
    +++ 2.6.8-rc4-mm1/drivers/acpi/pci_irq.c 2004-08-10 16:35:33.155469643 -0600
    @@ -338,13 +338,13 @@

    pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
    if (!pin) {
    - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No interrupt pin configured for device %s\n", pci_name(dev)));
    + printk("No interrupt pin configured for device %s\n", pci_name(dev));
    return_VALUE(0);
    }
    pin--;

    if (!dev->bus) {
    - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid (NULL) 'bus' field\n"));
    + printk("Invalid (NULL) 'bus' field for %s\n", pci_name(dev));
    return_VALUE(-ENODEV);
    }

    --- 2.6.8-rc4-mm1/arch/i386/pci/irq.c.orig 2004-08-10 16:23:45.801962683 -0600
    +++ 2.6.8-rc4-mm1/arch/i386/pci/irq.c 2004-08-10 16:42:52.194526765 -0600
    @@ -837,7 +837,7 @@
    struct pci_dev *dev = NULL;
    u8 pin;

    - DBG("PCI: IRQ fixup\n");
    + printk("PCI: IRQ fixup\n");
    while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
    /*
    * If the BIOS has set an out of range IRQ number, just ignore it.
    @@ -953,10 +953,11 @@

    static int __init pcibios_irq_init(void)
    {
    - DBG("PCI: IRQ init\n");

    - if (pcibios_enable_irq || raw_pci_ops == NULL)
    + if (pcibios_enable_irq || raw_pci_ops == NULL) {
    + printk("PCI: IRQ init returning early\n");
    return 0;
    + }

    dmi_check_system(pciirq_dmi_table);

    @@ -966,6 +967,7 @@
    if (!pirq_table && (pci_probe & PCI_BIOS_IRQ_SCAN))
    pirq_table = pcibios_get_irq_routing_table();
    #endif
    + printk("PCI: IRQ init pirq_table 0x%p\n", pirq_table);
    if (pirq_table) {
    pirq_peer_trick();
    pirq_find_router(&pirq_router);
    @@ -1004,6 +1006,7 @@
    extern int interrupt_line_quirk;
    struct pci_dev *temp_dev;

    + printk("%s: PCI slot %s\n", __FUNCTION__, pci_name(dev));
    pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
    if (pin && !pcibios_lookup_irq(dev, 1) && !dev->irq) {
    char *msg;
    -
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