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    SubjectRe: [Bug 7505] Linux-2.6.18 fails to boot on AMD64 machine
    On Fri, Dec 22, 2006 at 12:30:29AM -0800, Andrew Morton wrote:
    > I expect that you'll find that the ide code ends up doing
    > down_write(pci_bus_sem), which will enable interrupts.
    will: down_read(&pci_bus_sem);
    also enable interrupts?
    Since that is called:
    init/main.c start_kernel
    kernel/params.c parse_args("Booting kernel"
    kernel/params.c parse_one
    drivers/ide/ide.c ide_setup
    drivers/ide/ide.c init_ide_data
    drivers/ide/ide.c init_hwif_default
    include/asm-i386/ide.h ide_default_io_base(index)
    drivers/pci/search.c pci_find_device
    drivers/pci/search.c pci_find_subsys
    down_read(&pci_bus_sem);


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