On Mon, 4 Jul 2005, Peter Grehan wrote:
>> Check the alignment of the IP header before passing the packet up to the
>> packet filter. This would cause a panic on architectures that require
>> strict
>> alignment such as sparc64 (tier1) and ia64/ppc (tier2).
>
> 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?
Robert N M Watson