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[Bug 1001160] FIQ can trash stack when interrupting IRQ


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Jonathan Larmour <jifl@ecoscentric.com> changed:

           What    |Removed                     |Added
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                 CC|                            |jifl@ecoscentric.com

--- Comment #2 from Jonathan Larmour <jifl@ecoscentric.com> 2011-02-23 11:20:01 GMT ---
I'm not sure myself, but in that case it would effectively mean that FIQ
support as a whole should be controlled by a CDL option, not just these two
instructions. Maybe that would be no bad thing as it isn't used very often; and
when it _is_ used, really people should be using a VSR, rather than letting
heavyweight code kludge it into something like an ISR (the effect of which is
to make FIQs slower than IRQs which can hardly be the point).

Personally I think that would probably be a useful change.

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