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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <164515103939.912400.9280138789823591343.b4-ty@ellerman.id.au>
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