Re: [PATCH v12 17/22] selftests/vm: associate key on a mapped page and detect access violation

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To: Ram Pai <linuxram@xxxxxxxxxx>, shuahkh@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx
Subject: Re: [PATCH v12 17/22] selftests/vm: associate key on a mapped page and detect access violation
From: Dave Hansen <dave.hansen@xxxxxxxxx>
Date: Fri, 16 Mar 2018 15:30:10 -0700
Cc: mpe@xxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, x86@xxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, mingo@xxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, benh@xxxxxxxxxxxxxxxxxxx, paulus@xxxxxxxxx, khandual@xxxxxxxxxxxxxxxxxx, aneesh.kumar@xxxxxxxxxxxxxxxxxx, bsingharora@xxxxxxxxx, hbabu@xxxxxxxxxx, mhocko@xxxxxxxxxx, bauerman@xxxxxxxxxxxxxxxxxx, ebiederm@xxxxxxxxxxxx, arnd@xxxxxxxx
In-reply-to: <1519264541-7621-18-git-send-email-linuxram@us.ibm.com>
References: <1519264541-7621-1-git-send-email-linuxram@us.ibm.com> <1519264541-7621-18-git-send-email-linuxram@us.ibm.com>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

On 02/21/2018 05:55 PM, Ram Pai wrote:
> detect access-violation on a page to which access-disabled
> key is associated much after the page is mapped.

Looks fine to me.  Did this actually find a bug for you?

Acked-by: Dave Hansen <dave.hansen@xxxxxxxxx>

References:
- [PATCH v12 00/22] selftests, powerpc, x86 : Memory Protection Keys
  - From: Ram Pai
- [PATCH v12 17/22] selftests/vm: associate key on a mapped page and detect access violation
  - From: Ram Pai

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