linux-kernel - Re: [PATCH 2/2] selftests/sgx: Add SGX selftest augment_via_eaccept

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Message-ID: <Yvz+yxnxp8G6KzHi@kernel.org>
Date:   Wed, 17 Aug 2022 17:44:27 +0300
From:   Jarkko Sakkinen <jarkko@...nel.org>
To:     Reinette Chatre <reinette.chatre@...el.com>
Cc:     "Dhanraj, Vijay" <vijay.dhanraj@...el.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "linux-sgx@...r.kernel.org" <linux-sgx@...r.kernel.org>,
        Shuah Khan <shuah@...nel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] selftests/sgx: Add SGX selftest
 augment_via_eaccept_long

On Tue, Aug 16, 2022 at 09:35:27PM -0700, Reinette Chatre wrote:
> >>> This portion below was also copied from previous test and by only
> >>> testing a write to the first page of the range the purpose is not
> >>> clear. Could you please elaborate if the intention is to only test
> >>> accessibility of the first page and why that is sufficient?
> >>
> >> It is sufficient because the test reproduces the bug. It would have to be
> >> rather elaborated why you would possibly want to do more than that.
> 
> That is fair. An accurate comment (currently an inaccurate copy&paste) would
> help to explain this part of the test.

I would simply add something like:

/* 
 * Define memory pool size big enough to trigger the reclaimer in the EAUG
 * path of the page reclaimer.
 */

Suggestions/edits obviously welcome for the comment.

BR, Jarkko