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    SubjectRe: Huge console switching lags
    Ricky Beam wrote:
    > On Tue, 2 Oct 2001, Andrew Morton wrote:
    > >In 2.4.10, the console switching code moved from interrupt context
    > >into process context. So if your system is taking a long time to
    > >schedule processes (in this case, keventd) then yes, console
    > >switching will take a long time.
    > And what's the brilliant reason for this? And don't give any BS about it
    > taking too long inside an interrupt context -- we're switching consoles not
    > start netscrape.

    It takes too long in interrupt context :) Tens of milliseconds
    or more. More importantly, it sorts the locking out - you can't
    acquire a semaphore in interrupt context.
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