Re: [PATCH] sched_rt: the task in irq context can be migratedduring context switching

[Peter Zijlstra]

On Thu, 2012-01-05 at 20:00 +0900, Chanho Min wrote:
> In recent ARM, I saw the patch to remove
> __ARCH_WANT_INTERRUPTS_ON_CTXSW is posted.
> But, if that feature is adopted by the others architecture 

No, the moment ARM removes the need, the whole feature will be removed
never to be brought back, its a horrid complication to the scheduler we
really don't ever want to bring back (like you found out).

I'll go and digest your scenario now. At the very least your patch might
want to go into -stable.
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