Bad volatile -mstrict-align code on powerpc on 4.0.2?

Peter Dufault dufault at
Wed Nov 9 16:25:52 UTC 2005

On Nov 9, 2005, at 8:06 AM, Peter Dufault wrote:

> The compiler shouldn't reorder those since the struct is volatile.   
> Is there a setting for the VME bus interface to prevent this?  I'd  
> expect a read through the same bus mapping to block until all  
> writes flushed.

Never mind - I suppose the CPU itself can reorder the accesses, so I  
guess I have no choice but to modify the register access from memory  
mapped to something else.


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