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SubjectRe: [PATCH 1/3] Separate IRQ-stacks from 4K-stacks option
On Sun, Sep 12 2004, Lee Revell wrote:
> I am still unsure why the IDE i/o completion is the one place that
> breaks the assumption that hardirq handlers execute quickly.

I'm not sure why you think so. You also mention IDE as being the
'glaring exception' and it's definitely wrong. Most drivers run the
completion from hardirq context, SCSI is the exception since it does it
defers the completion to softirq context.

--
Jens Axboe

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