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    SubjectRe: x86, mce, Use user return notifier in mce
    On 01/13/2012 09:41 AM, Tony Luck wrote:
    > On Thu, Jan 12, 2012 at 10:32 PM, Huang Ying <> wrote:
    > > You are right. User return notifier can not be used for SRAR. I think
    > > that may be useful for SRAO. Where we need a way to do notify earlier
    > > in case of the corresponding work_queue item is not executed in time.
    > OK - I've been so focused on SRAR that I didn't think of the SRAO case.
    > But even there it seems odd to use user return notifier. We'd like the
    > SRAO work item to be executed promptly - but we don't care where it
    > is executed. So the "execute on this cpu" part of user return notifiers
    > doesn't quite fit.

    Also, nothing bounds the time until a urn executes. If the cpu stays in
    the kernel forever, it will never fire.

    error compiling committee.c: too many arguments to function

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