linux-kernel - Re: [PATCH] mm: Add config option for default panic_on

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: <20220511153616.9298d246adb1c7fea9ab453b@linux-foundation.org>
Date:   Wed, 11 May 2022 15:36:16 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Eddie James <eajames@...ux.ibm.com>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: Add config option for default panic_on_oom value

On Wed, 11 May 2022 17:06:35 -0500 Eddie James <eajames@...ux.ibm.com> wrote:

> 
> On 5/11/22 16:56, Andrew Morton wrote:
> > On Wed, 11 May 2022 13:34:00 -0500 Eddie James <eajames@...ux.ibm.com> wrote:
> >
> >> Add the option to kconfig and set the default panic_on_value.
> > Why?  What are the use-cases and how does this benefit our users?
> 
> If a distribution (for example some embedded system distribution) wants 
> the system to always panic when OOM, they may as well configure their 
> kernel to do it by default, rather than writing to 
> /proc/sys/vm/panic_on_oom every boot. Maybe I'm missing another way to 
> do what I want here?

Presumably such a distribution would do this in initramfs initscripts
and forget about it.

What inspired the patch?  Have you seen a situation which was best
solved with this change?