Re: [PATCH, RFC] RCU : OOM avoidance and lower latency

Andi Kleen
2006-01-06T22:33:59Z

On Friday 06 January 2006 20:26, Lee Revell wrote:
> On Fri, 2006-01-06 at 13:58 +0100, Andi Kleen wrote:
> > Another CPU might be stuck in a long
> > running interrupt
>
> Shouldn't a long running interrupt be considered a bug?

In normal operation yes, but there can be always exceptional
circumstances where it's unavoidable (e.g. during error handling)
and in the name of defensive programming the rest of the system ought
to tolerate it.

-Andi