linux-kernel - Re: [PATCH v2 7/7] tools: add skeleton code for userland testing of VMA logic

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240705182801.95577-1-sj@kernel.org>
Date: Fri,  5 Jul 2024 11:28:01 -0700
From: SeongJae Park <sj@...nel.org>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Cc: SeongJae Park <sj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	"Liam R . Howlett" <Liam.Howlett@...cle.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	Matthew Wilcox <willy@...radead.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Christian Brauner <brauner@...nel.org>,
	Jan Kara <jack@...e.cz>,
	Eric Biederman <ebiederm@...ssion.com>,
	Kees Cook <kees@...nel.org>,
	Suren Baghdasaryan <surenb@...gle.com>,
	Shuah Khan <shuah@...nel.org>,
	Brendan Higgins <brendanhiggins@...gle.com>,
	David Gow <davidgow@...gle.com>,
	Rae Moar <rmoar@...gle.com>
Subject: Re: [PATCH v2 7/7] tools: add skeleton code for userland testing of VMA logic

Hi Lorenzo,

On Thu,  4 Jul 2024 20:28:02 +0100 Lorenzo Stoakes <lorenzo.stoakes@...cle.com> wrote:

> Establish a new userland VMA unit testing implementation under
> tools/testing which utilises existing logic providing maple tree support in
> userland utilising the now-shared code previously exclusive to radix tree
> testing.
> 
> This provides fundamental VMA operations whose API is defined in mm/vma.h,
> while stubbing out superfluous functionality.
> 
> This exists as a proof-of-concept, with the test implementation functional
> and sufficient to allow userland compilation of vma.c, but containing only
> cursory tests to demonstrate basic functionality.
> 
> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>

I haven't had a time to review this, and I don't think I will get the time soon
(don't wait for me).  But, I was able to build and run it as below, thanks to
the fast runtime of the test ;)

    $ cd tools/testing/vma
    $ make
    [...]
    $ ./vma
    4 tests run, 4 passed, 0 failed.

So, FWIW,

Tested-by: SeongJae Park <sj@...nel.org>


Thanks,
SJ

[...]