does a ISR routine could be preemptived in 2.6

we know, a kernel task could be preemptived in 2.6, but i'm not sure
that does a ISR routine could be preemptived in 2.6.

any one have practice with this problem? thanks for hare the
description on it.

lion3875 wrote:
[color=blue]
> we know, a kernel task could be preemptived in 2.6, but i'm not sure
> that does a ISR routine could be preemptived in 2.6.
>
> any one have practice with this problem? thanks for hare the
> description on it.[/color]

When you are using rt-preempt on top of your 2.6 kernel, also the ISRs are
preemptiv (and you can prioritize them). For the regular 2.6 kernel I'm not
sure.

jbe