what does this mean?

[Steve Iribarne (GMail)]

Thanks.  That's what I think it is, but I didn't write this code so
I'm trying to track down
who is calling down at interrupt time.



On 5/16/06, Walter L. Wimer III <walt.wimer at timesys.com> wrote:
> On Tue, 2006-05-16 at 13:38 -0400, Walter L. Wimer III wrote:
> > Check to make sure that in your interrupt handler you are not calling
> > something that can sleep.  E.g. sleep(), usleep(), kmalloc(),
> > vmalloc(), etc.
>
> Also watch out for semaphore operations such as down() and
> down_interruptible().  They can sleep too.
>
>
> Walt
>
>
>