Re: MVME177 panic: pmap_enter_ptpage (PR #45915 on 6.x)

[David Laight <david%l8s.co.uk@localhost>]

On Thu, Sep 19, 2013 at 11:39:28PM +0200, Martin Husemann wrote:
> On Thu, Sep 19, 2013 at 09:23:54PM +0000, Christos Zoulas wrote:
> > Has this been fixed in 4.8? Can it be fixed in 4.5?
> 
> It is a bug in the code, not in gcc.
> 
> Martin

Indeed - that code is a complete disaster area just waiting to happen.

Anything that uses the ARG1, ARG2 or GETRES functions (all of which
modify the stack pointer) is completely doomed.

Also I suspect at least some of the those should have "memory" constriants.

        David

-- 
David Laight: david%l8s.co.uk@localhost