linux-kernel - Re: [PATCH -next 3/3] kasan: arm64: Fix pcpu_page_first_chunk crash with KASAN

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Message-ID: <CANpmjNP8Js3nKeVfwPqV7oQaBbGebKxFYRWe8TifTduP2q86xA@mail.gmail.com>
Date:   Fri, 16 Jul 2021 09:41:04 +0200
From:   Marco Elver <elver@...gle.com>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     Dmitry Vyukov <dvyukov@...gle.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kasan-dev@...glegroups.com, linux-mm@...ck.org,
        Daniel Axtens <dja@...ens.net>
Subject: Re: [PATCH -next 3/3] kasan: arm64: Fix pcpu_page_first_chunk crash
 with KASAN_VMALLOC

On Fri, 16 Jul 2021 at 07:06, Kefeng Wang <wangkefeng.wang@...wei.com> wrote:
> Hi Marco and Dmitry, any comments about the following replay, thanks.

Can you clarify the question? I've been waiting for v2.

I think you said that this will remain arm64 specific and the existing
generic kasan_populate_early_shadow() doesn't work.

If there's nothing else that needs resolving, please go ahead and send
v2 (the __weak comment still needs resolving).

Thanks,
-- Marco