linux-kernel - Re: [PATCH v3] powerpc/32s: Fix kasan_init

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Message-Id: <164259036257.3588160.3465491440781256341.b4-ty@ellerman.id.au>
Date:   Wed, 19 Jan 2022 22:06:02 +1100
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Christophe Leroy <christophe.leroy@...roup.eu>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Mackerras <paulus@...ba.org>
Cc:     linuxppc-dev@...ts.ozlabs.org, Maxime Bizon <mbizon@...ebox.fr>,
        stable@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] powerpc/32s: Fix kasan_init_region() for KASAN

On Mon, 10 Jan 2022 15:29:25 +0000, Christophe Leroy wrote:
> It has been reported some configuration where the kernel doesn't
> boot with KASAN enabled.
> 
> This is due to wrong BAT allocation for the KASAN area:
> 
> 	---[ Data Block Address Translation ]---
> 	0: 0xc0000000-0xcfffffff 0x00000000       256M Kernel rw      m
> 	1: 0xd0000000-0xdfffffff 0x10000000       256M Kernel rw      m
> 	2: 0xe0000000-0xefffffff 0x20000000       256M Kernel rw      m
> 	3: 0xf8000000-0xf9ffffff 0x2a000000        32M Kernel rw      m
> 	4: 0xfa000000-0xfdffffff 0x2c000000        64M Kernel rw      m
> 
> [...]

Applied to powerpc/fixes.

[1/1] powerpc/32s: Fix kasan_init_region() for KASAN
      https://git.kernel.org/powerpc/c/d37823c3528e5e0705fc7746bcbc2afffb619259

cheers