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    SubjectRe: NForce2 pseudoscience stability testing (2.6.0-test11)
    On Friday 28 November 2003 15:13, wrote:
    > The conclusion to this is the problem is in Local APIC with SMP. I'm not
    > saying this is actually true
    > only that is what the data suggests. If anybody wants me to try some
    > other stuff feel free to suggest
    > ideas.
    > Cheers,
    > Ross

    It's evidently a configuration problem, albeit BIOS, mainboard revision,
    memory quality, etc. because I and many others like me are able to run Linux
    2.4/2.6 with all the options you tested and still achieve absolute stability,
    on the nForce 2 platform.

    My system is an EPOX 8RDA+, with an Athlon 2500+ (Barton) overclocked to
    2.2Ghz, and 2x256MB TwinMOS PC3200 dimms. FSB is at 400Mhz, and the ram
    timings are 4,2,2,2. One might expect such a configuration to be unstable,
    but it is not.

    I'm currently running 2.6.0-test10-mm1 with full ACPI (+ routing), APIC and
    local APIC, no preempt, UP, and everything has been rock-solid, despite the
    machine being under constant 100% CPU load and fairly active IO load.

    Also, many others have found that just disabling local apic (and the MPS
    setting in the BIOS) as well as ACPI solves their problem, so I'm skeptical
    that SMP really causes *nForce 2 specific* instability.


    personal: alistair()devzero!co!uk
    university: s0348365()sms!ed!ac!uk
    student: CS/AI Undergraduate
    contact: 7/10 Darroch Court,
    University of Edinburgh.
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