From: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
To: Pavel Machek <pavel@ucw.cz>
Cc: Mark Seaborn <mseaborn@chromium.org>,
kernel list <linux-kernel@vger.kernel.org>,
luto@amacapital.net
Subject: Re: DRAM unreliable under specific access patern
Date: Mon, 5 Jan 2015 19:23:29 +0000 [thread overview]
Message-ID: <20150105192329.5f32c155@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20141224220818.GA17655@amd>
> In the meantime, I created test that actually uses physical memory,
> 8MB apart, as described in some footnote. It is attached. It should
> work, but it needs boot with specific config options and specific
> kernel parameters.
Why not just use hugepages. You know the alignment guarantees for 1GB
pages and that means you don't even need to be root
In fact - should we be disabling 1GB huge page support by default at this
point, at least on non ECC boxes ?
Alan
next prev parent reply other threads:[~2015-01-05 19:23 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAL82V5NN8U4PyiSjLxgpTrgsgkbM7rRCbVF5P-HHyEqphLOy+g@mail.gmail.com>
2014-12-24 22:08 ` Pavel Machek
2015-01-05 19:23 ` One Thousand Gnomes [this message]
2015-01-05 19:50 ` Andy Lutomirski
2015-01-06 1:47 ` Kirill A. Shutemov
2015-01-06 1:57 ` Andy Lutomirski
2015-01-06 2:18 ` Kirill A. Shutemov
2015-01-06 2:26 ` Andy Lutomirski
2015-01-08 13:03 ` One Thousand Gnomes
2015-01-08 16:52 ` Pavel Machek
2015-01-09 15:50 ` Vlastimil Babka
2015-01-09 16:31 ` Pavel Machek
2015-01-06 23:20 ` Pavel Machek
2015-03-09 16:03 ` Mark Seaborn
2015-03-09 16:30 ` Andy Lutomirski
2015-03-09 21:17 ` Pavel Machek
2015-03-09 21:37 ` Mark Seaborn
2015-03-10 11:33 ` DRAM bug exploitable on 50% machines without ECC (was Re: DRAM unreliable under specific access patern) Pavel Machek
2014-12-24 22:27 ` DRAM unreliable under specific access patern Pavel Machek
2014-12-24 23:41 ` Pavel Machek
[not found] ` <CAE2SPAa-tBFk0gnOhEZiriQA7bv6MmL9HGqAMSceUKKqujBDPQ@mail.gmail.com>
2014-12-25 9:23 ` Pavel Machek
2014-12-28 22:48 ` Mark Seaborn
2014-12-24 16:38 Pavel Machek
2014-12-24 16:46 ` Pavel Machek
2014-12-24 17:13 ` Andy Lutomirski
2014-12-24 17:25 ` Pavel Machek
2014-12-24 17:38 ` Andy Lutomirski
2014-12-24 17:50 ` Pavel Machek
2014-12-29 12:13 ` Jiri Kosina
2014-12-29 17:09 ` Pavel Machek
2014-12-28 9:18 ` Willy Tarreau
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