linux-kernel - Re: [kernel-hardening] rowhammer protection [was Re: Getting interrupt every million cache misses]

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Message-ID: <e0d4e02b-2256-0b32-a1e5-d03c0862db49@gruss.cc>
Date:   Tue, 1 Nov 2016 08:53:55 +0100
From:   Daniel Gruss <daniel@...ss.cc>
To:     kernel-hardening@...ts.openwall.com, Pavel Machek <pavel@....cz>
Cc:     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: [kernel-hardening] rowhammer protection [was Re: Getting
 interrupt every million cache misses]

On 01.11.2016 07:33, Ingo Molnar wrote:
> Can you suggest a method to find heavily rowhammer affected hardware? Only by
> testing it, or are there some chipset IDs ranges or dmidecode info that will
> pinpoint potentially affected machines?

I have worked with many different systems both on running rowhammer 
attacks and testing defense mechanisms. So far, every Ivy Bridge i5 
(DDR3) that I had access to was susceptible to bit flips - you will have 
highest chances with Ivy Bridge i5...