Re: [PATCH] 2.5.29: some compilation fixes for irq frenzy [OSS +

[Andy Pfiffer]

On Tue, 2002-07-30 at 15:47, Alan Cox wrote:
> On Tue, 2002-07-30 at 22:19, Andy Pfiffer wrote:
> > As luck would have it, I booted the kernel and played the tunes on a
> > 2-way P4 Xeon system.  Nothing wedged, but then again, I didn't try to
> > break it.
> > 
> > So, what did I break?
> 
> SMP support I think. A lot of the save_flags/cli stuff you changed looks
> like it needs to also lock out interrupts on the other processors,
> otherwise you can get a DMA pointer being updated under you.
> 

Thanks.  I'll take a look at it. --Andy