Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965467AbeALW7E (ORCPT + 1 other); Fri, 12 Jan 2018 17:59:04 -0500 Received: from shells.gnugeneration.com ([66.240.222.126]:56710 "EHLO shells.gnugeneration.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965386AbeALW6D (ORCPT ); Fri, 12 Jan 2018 17:58:03 -0500 Date: Fri, 12 Jan 2018 14:58:03 -0800 From: vcaputo@pengaru.com To: Arnd Bergmann Cc: Pavel Machek , Olivier Galibert , Linus Torvalds , Linux Kernel Mailing List , jikos@suse.cz Subject: Re: Linux 4.15-rc7 Message-ID: <20180112225802.lok5rda3fudlm4cc@shells.gnugeneration.com> References: <20180110233252.GA14739@amd> <20180112110624.GA13254@amd> <20180112172057.j33yhxb4gz6soscj@shells.gnugeneration.com> <20180112220414.w63ltzellcfafroh@shells.gnugeneration.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: On Fri, Jan 12, 2018 at 11:08:58PM +0100, Arnd Bergmann wrote: > On Fri, Jan 12, 2018 at 11:04 PM, wrote: > > On Fri, Jan 12, 2018 at 09:11:38PM +0100, Arnd Bergmann wrote: > > > >> - I haven't found a definite answer on whether Netburst-based CPUs > >> are affected by meltdown at all. Some people claim it's affected, > >> others say it's not. If the code from https://github.com/IAIK/meltdown > >> is successful on your Celeron D, then we know it's affected, if not, > >> then you could decide to not care about KPTI (Spectre would still > >> be an issue). > >> > > > > I tried that when the code was first made public, but libkdump doesn't > > support 32-bit; it's full of 64-bit register use in the assembly bits. > > Apparently 32-bit support was added on Wednesday, maybe you > can try again with today's version. > Thanks for informing me of this, I hadn't noticed. I just tried it out, and confirmed the Celeron D is vulnerable to meltdown. Regards, Vito Caputo