linux-kernel - Re: [PATCH] xtensa: enable ARCH_HAS_DEBUG_VM

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Message-ID: <CAMo8BfKe0WLOaCiDopyr-JH6JSG2X0FTMDgON=KynKdyYt4L7A@mail.gmail.com>
Date:   Tue, 26 Apr 2022 05:42:41 -0700
From:   Max Filippov <jcmvbkbc@...il.com>
To:     Anshuman Khandual <anshuman.khandual@....com>
Cc:     "open list:TENSILICA XTENSA PORT (xtensa)" 
        <linux-xtensa@...ux-xtensa.org>, Chris Zankel <chris@...kel.net>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE

Anshuman,

On Mon, Apr 25, 2022 at 11:07 PM Anshuman Khandual
<anshuman.khandual@....com> wrote:
> Thanks for the patch. Just wondering if you ran with different config
> options (which might impact test case selection) on/off during testing ?

I went through the code in the mm/debug_vm_pgtable.c and saw that most
variations are related to the huge page support which xtensa doesn't have.
I've tested it with and without CMA.
I haven't found anything else interesting that I could tweak -- have I missed
anything?

-- 
Thanks.
-- Max