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Date:   Tue, 19 Apr 2022 19:57:38 +0100
From:   "Russell King (Oracle)" <linux@armlinux.org.uk>
To:     Naresh Kamboju <naresh.kamboju@linaro.org>
Cc:     Linux ARM <linux-arm-kernel@lists.infradead.org>,
        open list <linux-kernel@vger.kernel.org>,
        Linux-Next Mailing List <linux-next@vger.kernel.org>,
        lkft-triage@lists.linaro.org,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        Arnd Bergmann <arnd@arndb.de>,
        Ard Biesheuvel <ardb@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        max.krummenacher@toradex.com, Shawn Guo <shawnguo@kernel.org>,
        Stefano Stabellini <stefano.stabellini@xilinx.com>,
        Christoph Hellwig <hch@lst.de>,
        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        "Eric W. Biederman" <ebiederm@xmission.com>
Subject: Re: [next] arm: boot failed - PC is at cpu_ca15_set_pte_ext
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References: <CA+G9fYuACgY2hcAgh_LwVb9AURjodMJbV6SsJb90wj-0aJKUOw@mail.gmail.com>
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On Tue, Apr 19, 2022 at 04:28:52PM +0530, Naresh Kamboju wrote:
> Linux next 20220419 boot failed on arm architecture qemu_arm and BeagleBoard
> x15 device.

Was the immediately previous linux-next behaving correctly?

If so, nothing has changed in the ARM32 kernel tree, so this must be
someone else's issue - code that someone else has pushed into
linux-next.

It looks to me like someone is walking the page tables incorrectly,
somewhere buried in handle_mm_fault(), because the PTE pointer is in
the upper-2k of a 4k page, which is most definitely illegal on arm32.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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