Ah.  From so metag is a new arch and not a compiler like the changelog
says.

On Mon, Jan 20, 2014 at 11:56:47AM +0000, James Hogan wrote:
> struct a {
>       struct b {
>               unsigned int x;
>               unsigned short y;
>       } x;
>       unsigned short y;
> } __packed;

This is not the code we are discussing.  It should look like:

struct a {
        union {
                short x;
                short y;
        }
        short z;
};

Any normal person would assume that sizeof(struct a) would be 4 but
apparently on metag it is 8.  That totally defeats the point of using
a union in the first place.  It's easy enough to add a __packed to the
lustre declaration but I expect this to cause an endless stream of bugs.

It it is really stupid.

regards,
dan carpenter

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