Subject: Re: [kernel-hardening] rowhammer protection [was Re: Getting
 interrupt every million cache misses]
To: Pavel Machek <pavel@ucw.cz>
References: <20161028172710.GA10309@amd>
 <d2f7dc1d-12ab-de12-cf73-7565fc27f5f7@gruss.cc> <20161029194224.GB3827@amd>
 <5f5741d5-0695-6a56-6c05-ebdaaa896f54@gruss.cc> <20161029210518.GC3827@amd>
 <571c5ef8-ccce-0b7a-b506-c69a024276a0@gruss.cc> <20161029214540.GD3827@amd>
Cc: "kernel-hardening@lists.openwall.com" 
        <kernel-hardening@lists.openwall.com>,
        Mark Rutland <mark.rutland@arm.com>, Kees Cook <keescook@chromium.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        kernel list <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@redhat.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>
From: Daniel Gruss <daniel@gruss.cc>
Message-ID: <c16d6b6c-608e-c711-cc18-34b8d0082183@gruss.cc>
Date: Sat, 29 Oct 2016 23:49:57 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101
 Thunderbird/45.3.0
MIME-Version: 1.0
In-Reply-To: <20161029214540.GD3827@amd>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 327
Lines: 7

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...