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    SubjectRe: [BUG FIX] Make x86_32 uni-processor Atomic ops, Atomic
    Hi Harald,

    It looks like there might be a problem with the C7-M ... Michael reports
    that if he sets LOCK_PREFIX to "lock;" it works, but that shouldn't be
    necessary for a uniprocessor.

    I'm wondering if we have to revive the OOSTORE hack, or some other
    workaround. It is of course hard for me to track this down since (a) I
    don't have access to the CPU documentation, and (b) I work for Intel
    now, which limits the amount of time I can realistically spend on this.


    [Cc: Alan, who I believed developed the OOSTORE hack back when.]

    Michael S. Zick wrote:
    > On Fri May 22 2009, H. Peter Anvin wrote:
    >> Michael S. Zick wrote:
    >>> Same integrated motherboard.
    >> Which means same CPU, same BIOS, same motherboard (none of which you're
    >> telling us.)
    >> cpuinfo and dmidecode would be informative.
    > The -09143lk files are posted.
    > Download location:
    > Details so far today:
    > Summary:
    > HP-2133 (C7-M/CN896) - 09143 - No results - Still up 3 1/2 hours.
    > Cloudbook (C7-M/CX700) - 09143 - 45 minutes.
    > Cloudbook (C7-M/CX700) - 09143lk - No results - Still up 1 1/2 hours.
    > OK - time to look for the missing "memory" in the clobber lists. ;)

    H. Peter Anvin, Intel Open Source Technology Center
    I work for Intel. I don't speak on their behalf.

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