linux-kernel - Re: [PATCH] x86/speculation/l1tf: fix off-by-one error when warning that system has too much RAM

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: <20180824115200.693ac345@localhost>
Date:   Fri, 24 Aug 2018 11:52:00 +0300
From:   George Anchev <studio@...hev.net>
To:     Andi Kleen <ak@...ux.intel.com>
Cc:     Vlastimil Babka <vbabka@...e.cz>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Dave Hansen <dave.hansen@...el.com>,
        Michal Hocko <mhocko@...nel.org>, stable@...r.kernel.org,
        Christopher Snowhill <kode54@...il.com>
Subject: Re: [PATCH] x86/speculation/l1tf: fix off-by-one error when warning
 that system has too much RAM

On Thu, 23 Aug 2018 08:44:37 -0700 Andi Kleen wrote:

> Ah I see it's a client part with very large DIMMs
> and someone being very brave and using that much
> memory without ECC.

It is not about being "brave" but about being
informed. As of 2018 you can probably call "brave"
everyone who uses any modern computer. However this
machine was purchased in 2012. Consider what was known
then and what is known now. The motherboard ASUS
P8Z77-V does not support ECC memory. Still we needed
and paid for 32GB of RAM, not for 31.5.

--
George