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    SubjectRe: [ANNOUNCE] desc.c -- dump the i386 descriptor tables
    wli wrote:
    >> Spiffy; this should help debug various things.

    On Thu, Apr 24, 2003 at 05:06:58AM -0400, Chuck Ebbert wrote:
    > I forgot to mention: try comparing 2.2, 2.4 and 2.5.
    > Also, this is what I've been using to look at interrupt entry
    > point alignment. On 2.4 for sure, and probably on 2.5 you have
    > a 1-in-8 chance of getting a pathologically badly aligned timer
    > handler on 32-byte cacheline machines every time you compile
    > (IRQ 0 entry address & 0x1f == 0x1c.) OTOH the pagefault handler
    > has come up 8-byte aligned every time but I didn't look at the
    > source to see if it's coded that way.

    I had more in mind using it to verify the correctness of per-node IDT
    stuff than checking optimality in general, but it does look very handy.


    -- wli
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