Michael Ellerman wrote:

On Wed, 2009-12-23 at 19:41 +0530, Kumar Gopalpet-B05799 wrote:
  

quoted

Hi all,
 
I am trying linux 2.6.32-rc3 in SMP mode. I am seeing a lot of BAD
interrupts when I do a "cat  /proc/interrupts".
 
I am running a forwarding application b/w two ethernet ports (ethernet
uses gianfar driver).
 
Has any one observed these BAD interrupts ? If so, can someone help me
in understanding why these interrupts come and how to resolve it ?
    

You'll need to tell us what platform you're running on.

The BAD interrupts come from ppc_spurious_interrupts. It's a count of
the number of times we entered do_IRQ() (ie. took an external
interrupt), but when we asked the interrupt controller which irq it was,
the interrupt controller said there was no irq.

Depending on your interrupt controller that might happen sometimes for
valid reasons. Or it might indicate something is setup wrong.

cheers
  

I think it will help to show us your /proc/interrupts so that how you 
suffered
from bad interrupts.