Re: Possible regression in "slab, slub: skip unnecessary kasan_cache_shutdown()"

[Shakeel Butt]

On Tue, Jun 19, 2018 at 6:05 AM Jason A. Donenfeld <Jason@xxxxxxxxx> wrote:
>
> HI Dimitry,
>
> On Tue, Jun 19, 2018 at 6:55 AM Dmitry Vyukov <dvyukov@xxxxxxxxxx> wrote:
> > Your code frees all entries before freeing the cache, right? If you
> > add total_entries check before freeing the cache, it does not fire,
> > right?
>
> Yes, certainly.
>
> > Are you using SLAB or SLUB? We stress kernel pretty heavily, but with
> > SLAB, and I suspect Shakeel may also be using SLAB. So if you are
> > using SLUB, there is significant chance that it's a bug in the SLUB
> > part of the change.
>
> Nice intuition; I am indeed using SLUB rather than SLAB...
>

Can you try once with SLAB? Just to make sure that it is SLUB specific.