Re: [RFC patch 0/5] genirq: add infrastructure for threadedinterrupt handlers

[Arjan van de Ven]

On Thu, 2 Oct 2008 14:31:46 -0700
Greg KH <greg@xxxxxxxxx> wrote:

> On Thu, Oct 02, 2008 at 04:46:09PM +0200, Andi Kleen wrote:
> > Thomas Gleixner <tglx@xxxxxxxxxxxxx> writes:
> > >
> > >  - move long running handlers out of the hard interrupt context
> > 
> > I'm not sure I'm really looking forward to this brave new world
> > of very long running interrupt handlers. e.g. what do you
> > do for example when some handler blocks for a very long time?
> 
> We have this issue today with some irqs (USB is known for issue
> here...)
> 
> So I don't think this is a big issue, and in the end, a better idea as
> it might force us to confront some of the big abusers and fix them.
> 

one of the things irq threads gives you is that 'top' will show you
which ones are eating cpu ;-)


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
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