Re: mm/kmsan/instrumentation.c:41:26: warning: no previous prototype for function '__msan_metadata_ptr_for_load_n'

[Alexander Potapenko]

On Thu, Jan 12, 2023 at 10:15 AM Alexander Potapenko <glider@xxxxxxxxxx> wrote:
>
> > > Would it also make sense to exclude KMSAN with CONFIG_SLUB_TINY?
> >
> > If the root causes are fixed, then it's not necessary? AFAIK SLUB_TINY only
> > indirectly caused KMSAN to be newly enabled in some configs, but there's no
> > fundamental incompatibility that I know of.
>
> So far I couldn't manage to boot KMSAN with SLUB_TINY, it just dies
> somewhere very early with the following stacktrace:

False alarm, a reduced config works fine with both KMSAN and
SLUB_TINY. Perhaps the one I was trying previously was too heavy.