Re: RT patch acceptance

From: hui
Date: Wed May 25 2005 - 16:42:08 EST


On Wed, May 25, 2005 at 05:25:38PM -0400, Tom Vier wrote:
> On Wed, May 25, 2005 at 11:05:05PM +0200, Esben Nielsen wrote:
> > Long interrupt handlers can be interrupt by _tasks_, not only other
> > interrupts! An audio application running in userspace can be scheduled
> > over an ethernet interrupt handler copying data from the
> > controller into RAM (without DMA).
>
> Doesn't that greatly increase the risk of the hardware overrunning it's
> buffer?

If you have a broken device and associated driver yes. But it's not like
irq-threads are going to change that either way.

bill

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/