[parisc-linux] Re: Trap handler

[Matthew Wilcox]

On Mon, Dec 09, 2002 at 11:41:25AM -0700, Grant Grundler wrote:
> As jsm agreed, if interrupts were disabled when we took the fault,
> we can't re-enable them while handling a page fault.
> Where x86 disables interrupts seems ok to me.

um, there's a difference between a page fault and a TLB miss.  if you
have interrupts disabled and you take a page fault, something's gone
horribly wrong.  having interrupts disabled when you miss the TLB cache
is no big deal.  we _absolutely must not_ tamper with interrupt enable
state when handling a TLB miss.

-- 
"It's not Hollywood.  War is real, war is primarily not about defeat or
victory, it is about death.  I've seen thousands and thousands of dead bodies.
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