linux-kernel - Re: [PATCH] sparc32: use PUD rather than PGD to get PMD in srmmu_nocache

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Message-ID: <CAHk-=wjnwsRfE_RJLAV8SX465uEmpOOJxyqjsLRwoX-UPH0kQg@mail.gmail.com>
Date:   Sat, 23 May 2020 17:15:55 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Mike Rapoport <rppt@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "David S. Miller" <davem@...emloft.net>,
        Anatoly Pugachev <matorola@...il.com>,
        sparclinux@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        stable <stable@...r.kernel.org>
Subject: Re: [PATCH] sparc32: use PUD rather than PGD to get PMD in srmmu_nocache_init()

On Sat, May 23, 2020 at 3:47 PM Guenter Roeck <linux@...ck-us.net> wrote:
>
> This quite innocent looking patch crashes all my sparc32 boot tests.
> Crash log and bisect results below. Reverting it fixes the problem.

It should also fixed by 0cfc8a8d70dc ("sparc32: fix page table
traversal in srmmu_nocache_init()"). No?

                 Linus