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Date: Mon, 5 Jan 2015 11:50:04 -0800 From: Andy Lutomirski <luto@...capital.net> To: One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk> Cc: Pavel Machek <pavel@....cz>, Mark Seaborn <mseaborn@...omium.org>, kernel list <linux-kernel@...r.kernel.org> Subject: Re: DRAM unreliable under specific access patern On Mon, Jan 5, 2015 at 11:23 AM, One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk> wrote: >> 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 ? Can you actually damage anyone else's data using a 1 GB hugepage? --Andy > > Alan -- Andy Lutomirski AMA Capital Management, LLC -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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