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    SubjectRe: What exactly are the issues with 2.6.0-test10 preempt?


    On Mon, 24 Nov 2003, Bradley Chapman wrote:
    >
    > What sort of information would you like me to provide, sir? The bug you're
    > discussing here isn't affecting me; CONFIG_PREEMPT has been solid on 2.6.0-test10.
    > This is on a Gateway 600S laptop with a P4-M 2Ghz processor and an i845 Brookdale
    > chipset.

    Basically, there's something strange going on, which _seems_ to be memory
    corruption, and seems to correlate reasonable well (but not 100%) with
    CONFIG_PREEMPT.

    It's actually unlikely to be preemption itself that is broken: it's much
    more likely that some driver or other subsystem is broken, and preempt is
    just better at triggering it by making some race conditions much easier to
    see due to bigger windows for them to happen.

    The problem is finding enough of a pattern to the reports to make sense of
    what seems to be the common thread. A lot of people use preemption without
    any trouble.

    Linus
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