Re: Slab initialisation problems on MN10300

[David Howells <dhowells@redhat.com>]

Pekka Enberg <penberg@cs.helsinki.fi> wrote:

> If you didn't see PARTIAL_AC state at all, SLAB thinks INDEX_AC and
> INDEX_L3 are equal. However,

Ah...  The problem is that index_of() behaves differently under -O0 rather
than -O1, -O2 or -Os.

I was using -O0 so that I could debug another problem using GDB on the kernel.
However, this appears to mean that __builtin_constant_p() inside an inline
function is always false, even if the function is actually inlined because of
__always_inline.

I'd commented out the __bad_size() calls because they went to places that
don't exist, and so the -O0 kernel wouldn't link.

David

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