linux-kernel - Re: [PATCH v3] selftests: add new kallsyms selftests

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] [day] [month] [year] [list]

Message-ID: <Z0jFruPWqtieVLtH@bombadil.infradead.org>
Date: Thu, 28 Nov 2024 11:34:06 -0800
From: Luis Chamberlain <mcgrof@...nel.org>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: linux-modules@...r.kernel.org, linux-kernel@...r.kernel.org,
	petr.pavlu@...e.com, samitolvanen@...gle.com, da.gomez@...sung.com,
	masahiroy@...nel.org, deller@....de, linux-arch@...r.kernel.org,
	live-patching@...r.kernel.org, kris.van.hees@...cle.com
Subject: Re: [PATCH v3] selftests: add new kallsyms selftests

On Thu, Nov 28, 2024 at 03:10:34PM +0100, Geert Uytterhoeven wrote:
> Despite the warning, I gave this a try on m68k (cross-compiled on i7 ;-).
> However, I didn't notice any extra-ordinary build times.

I had some large values before this got merged and due to this
slowing down builds 2x I reduced the defaults. The current defaults
are no known as TEST_KALLSYMS_LARGE.

> Also, when running the test manually on ARAnyM, everything runs
> in the blink of an eye.  I didn't use the script, but ran all commands
> manually.  I tried insmodding a/b/c/d, c/a/b, a/c/d/b.
> 
> Is this expected?

I tried to clarify the ranges known we can use to mess with this test
a bit more in the recent fixes on modules-next [0] so since you want
to see some things blow up try TEST_KALLSYMS_MAX, on some systems this
is reported to crash the build.

It is why I had reduced the original values a bit...

[0] git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux.git modules-next

  Luis