kernel oops due to unaligned access with lswi

[Benjamin Herrenschmidt]

On Sun, 2003-11-16 at 11:40, Paul Mackerras wrote:
> Olaf,
>
> > 	lswi 9,31,8
> > 	stswi 9,28,8
> >
> > s = r31. How can gcc be sure that s aligned?
>
> What machine is this?  I looked at the manuals for 750, 7450, POWER4
> and they all handle unaligned string ops in hardware.  The alignment
> handler doesn't handle string ops, I believe, although it could.  And
> which arch (ppc32 or ppc64)?

One of your old friends actually:

olaf> pmac 7200/90 with 601 cpu.

:)

Ben.


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