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Date:   Thu, 20 Dec 2018 00:24:03 -0800
From:   Christoph Hellwig <hch@infradead.org>
To:     Christophe Leroy <christophe.leroy@c-s.fr>
Cc:     Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] powerpc/8xx: Map a second 8M text page at startup when
 needed.
Message-ID: <20181220082403.GA25436@infradead.org>
References: <27edd227d3b9dcda4e2ce7d00d9fddeb7a5520a1.1545241146.git.christophe.leroy@c-s.fr>
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On Thu, Dec 20, 2018 at 05:48:25AM +0000, Christophe Leroy wrote:
> Some debug setup like CONFIG_KASAN generate huge
> kernels with text size over the 8M limit.
> 
> This patch maps a second 8M page when _einittext is over 8M.

Do we also need a check to generate a useful warning if we ever overflow
the 16MB?