linux-kernel - Re: [PATCH] powerpc/603: Fix boot failure with DEBUG

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Date:   Fri, 18 Feb 2022 13:23:59 +1100
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        Maxime Bizon <mbizon@...ebox.fr>, stable@...r.kernel.org
Subject: Re: [PATCH] powerpc/603: Fix boot failure with DEBUG_PAGEALLOC and KFENCE

On Tue, 7 Dec 2021 06:10:05 +0000, Christophe Leroy wrote:
> Allthough kernel text is always mapped with BATs, we still have
> inittext mapped with pages, so TLB miss handling is required
> when CONFIG_DEBUG_PAGEALLOC or CONFIG_KFENCE is set.
> 
> The final solution should be to set a BAT that also maps inittext
> but that BAT then needs to be cleared at end of init, and it will
> require more changes to be able to do it properly.
> 
> [...]

Applied to powerpc/fixes.

[1/1] powerpc/603: Fix boot failure with DEBUG_PAGEALLOC and KFENCE
      https://git.kernel.org/powerpc/c/9bb162fa26ed76031ed0e7dbc77ccea0bf977758

cheers