linux-kernel - Re: [PATCH 3/7] powerpc/mm: Fix kernel RAM protection after freeing unused memory on PPC32

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Message-ID: <20170530115131.6ee8340c@firefly.ozlabs.ibm.com>
Date:   Tue, 30 May 2017 11:51:31 +1000
From:   Balbir Singh <bsingharora@...il.com>
To:     Christophe Leroy <christophe.leroy@....fr>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Scott Wood <oss@...error.net>, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 3/7] powerpc/mm: Fix kernel RAM protection after freeing
 unused memory on PPC32

On Mon, 29 May 2017 17:32:00 +0200 (CEST)
Christophe Leroy <christophe.leroy@....fr> wrote:

> As seen below, allthough the init sections have been freed, the
> associated memory area is still marked as executable in the
> page tables.

Good catch!

Acked-by: Balbir Singh <bsingharora@...il.com>