linux-kernel - Re: Possible regression in "slab, slub: skip unnecessary kasan_cache

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Message-ID: <CAHmME9ppVOWn7Fo4DzaKN9M+-EZpDpA3Rp_4JoQVoSu8SEX=uw@mail.gmail.com>
Date:   Tue, 19 Jun 2018 22:20:15 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Shakeel Butt <shakeelb@...gle.com>
Cc:     Dmitry Vyukov <dvyukov@...gle.com>, aryabinin@...tuozzo.com,
        Alexander Potapenko <glider@...gle.com>, cl@...ux.com,
        penberg@...nel.org, rientjes@...gle.com, iamjoonsoo.kim@....com,
        Andrew Morton <akpm@...ux-foundation.org>,
        kasan-dev@...glegroups.com, Linux-MM <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: Possible regression in "slab, slub: skip unnecessary kasan_cache_shutdown()"

Hi Shakeel,

On Tue, Jun 19, 2018 at 9:21 PM Shakeel Butt <shakeelb@...gle.com> wrote:
> Jason, can you try the following patch?

Your patch also fixed the problem, which was also fixed by enabling
CONFIG_SLUB_DEBUG, per the other email. I haven't checked to see if
your patch is simply a subset of what SLUB_DEBUG is doing or what. But
hopefully this points in the right direction now.

Jason