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    SubjectRe: [Fdutils] DMA cache consistency bug introduced in 2.6.28
    > > Does pmqos work with apci=off etc.? 
    > yes
    > > I didn't think it shut down
    > > the classic "HLT" idle, does it?
    > it does if you specify a latency of 0; it will then go into the
    > spin-only state until you give up your latency requirement

    I looked at it this evening, but it seems like pm_qos is not
    interrupt safe (e.g. calls blocking notifiers) and floppy currently does
    enable/disable_hlt from interrupts and bottom halves.

    Would need some more infrastructure work or restructuring
    of the floppy driver.

    -- -- Speaking for myself only.

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      Last update: 2009-12-26 17:43    [W:0.023 / U:2.372 seconds]
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