>> FYI, any modern ppc implementation doesn't require strict alignment
>> for integer load/stores though there's a performance penalty for
>> having to split the access into smaller ones.
> While it's not immediately relevant to the IP code, generally speaking,
> is it the case that non-aligned integer reads can be non-atomic with
> respect to other CPUs due to the multiple access implementation?
I'd say certainly ! In fact, are there any architectures that could
guarantee atomicity in this case ?