Re: BUG or not? GFP_KERNEL with interrupts disabled.

   From: Robert Love <rml@xxxxxxxxx>
   Date: 27 Mar 2003 14:52:11 -0500

   On Thu, 2003-03-27 at 14:39, David S. Miller wrote:
   
   > I hadn't considered this, good idea.  I'm trying this out right now.
   
   I hope it works.  I have a sinking feeling we call it some places that
   may have interrupts disabled...

Your sinking feeling was warranted.

Nearly every hw IRQ implementation invokes irq_exit() with
CPU interrupts off :-(  That has to be screwing with performance
as well.