linux-kernel - Re: [PATCH] mm: add config option to select the initial overcommit mode

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: <5735C567.6030202@free.fr>
Date:	Fri, 13 May 2016 14:15:35 +0200
From:	Mason <slash.tmp@...e.fr>
To:	Michal Hocko <mhocko@...nel.org>
Cc:	Sebastian Frias <sf84@...oste.net>, linux-mm@...ck.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: add config option to select the initial overcommit
 mode

On 13/05/2016 13:44, Michal Hocko wrote:

> Anyway, this is my laptop where I do not run anything really special
> (xfce, browser, few consoles, git, mutt):
> $ grep Commit /proc/meminfo
> CommitLimit:     3497288 kB
> Committed_AS:    3560804 kB
> 
> I am running with the default overcommit setup so I do not care about
> the limit but the Committed_AS will tell you how much is actually
> committed. I am definitelly not out of memory:
> $ free
>               total        used        free      shared  buff/cache   available
> Mem:        3922584     1724120      217336      105264     1981128     2036164
> Swap:       1535996      386364     1149632

I see. Thanks for the data point.

I had a different type of system in mind.
256 to 512 MB of RAM, no swap.
Perhaps Sebastian's choice could be made to depend on CONFIG_EMBEDDED,
rather than CONFIG_EXPERT?

Regards.