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    SubjectRe: [PATCH] leave APIC code inactive by default on i386
    On 1/20/06, Darrick J. Wong <djwong@us.ibm.com> wrote:
    > Hi there,
    >
    > Some old i386 systems have flaky APIC hardware that doesn't always work
    > right. Right now, enabling the APIC code in Kconfig means that the APIC
    > code will try to activate the APICs unless 'noapic nolapic' are passed
    > to force them off. The attached patch provides a config option to
    > change that default to keep the APICs off unless specified otherwise,
    > disables get_smp_config if we are not initializing the local APIC, and
    > makes init_apic_mappings not init the IOAPICs if they are disabled.
    > Note that the current behavior is maintained if
    > CONFIG_X86_UP_APIC_DEFAULT_OFF=n.

    ...

    Did this hit the floor? It strikes me as a pretty good solution. This
    is pretty nasty for newbies installing distro kernels, they get some
    of the way through an install and then their machine just locks - not
    good PR.

    cheers
    -
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