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Message-ID: <20161029220133.GE3827@amd>
Date: Sun, 30 Oct 2016 00:01:33 +0200
From: Pavel Machek <pavel@....cz>
To: Daniel Gruss <daniel@...ss.cc>
Cc: "kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
Mark Rutland <mark.rutland@....com>,
Kees Cook <keescook@...omium.org>,
Peter Zijlstra <peterz@...radead.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
kernel list <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...hat.com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Subject: Re: rowhammer protection [was Re: Getting
interrupt every million cache misses]
On Sat 2016-10-29 23:49:57, Daniel Gruss wrote:
> On 29.10.2016 23:45, Pavel Machek wrote:
> >indy/sandy/haswell/skylake, so I'll just use the generic version...?)
>
> yes, generic might work, but i never tested it on anything that old...
>
> on my system i have >30 bit flips per second (ivy bridge i5-3xxx) with the
> rowhammer-ivy test... sometimes even more than 100 per second...
Hmm, maybe I'm glad I don't have a new machine :-).
I assume you still get _some_ bitflips with generic "rowhammer"?
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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