From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-x22a.google.com (mail-qk0-x22a.google.com [IPv6:2607:f8b0:400d:c09::22a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 7E9723B2A4 for ; Thu, 4 Jan 2018 08:59:27 -0500 (EST) Received: by mail-qk0-x22a.google.com with SMTP id x7so1996672qkb.0 for ; Thu, 04 Jan 2018 05:59:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=52T2J9P8h8Ohozg+yp+amVDiem+oUzNHVckcZ3gFRK0=; b=BTqAcSEf6Zy2eLzuMHrnJYjufbzV6AM9lGJPp6IYVTkSrsTWlZ8A0xbpRfWlGlUuPe 1RL5VbhaAcvXswqV229ed1lodt+R/Dtp3CpMSpzwOEkI8ZJx1ieHyHHCe71owR8Vo8eK kqQDrilns374TYNy4t6ZbD9zIXC2tgpCGabUDJKml27aXXzgEOenhx06Pgjj66zvSOok wq5lM5WxtcXT2ToH276UOaCIXm2PGCRTdY2hj4yczZJSZZuivVvBbM1MEEvi6VCLlYhm 17Ff7jqzu8cgxxPn8BVPk4NwChwpFz8gwFTC5D2HE5OQQ+om6FnfZS7PgLn/Qj9y9igN jKow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=52T2J9P8h8Ohozg+yp+amVDiem+oUzNHVckcZ3gFRK0=; b=rCHdmzld57J1FCGppYNEYLBmQFK69ijtDNlqV/7OMEgV0b9/UCOkb8WyiwVZM8rkpa uTVVL06PXQCN9JfR3xJX1vu7wat2SaxjpgAutb6Txe4IOmwmemtQ4N4NiWN2Qvbv49lF SIY/SA1/T7MhHujyMlYN70Jnv9FpNupMmpNN0vjQka7af2HqFa0thJql8zU9n/ODKAdp KZTwgWnG4VcHXjm+dtshNTgigL45xllNDNgRdvP6repE3Z326vEUgz57pa5Li/hIOz5D JBhsu6Q7nWi2B5wmWlkZYVpJEocwZlmoer3ueFlWQ0vUNSbhlHxX16Qqize/S1TeH67E NxFA== X-Gm-Message-State: AKGB3mJu3d7XQFGAa47JNc6xyyOnROe5JGmRA2NNhK0g6mkBmPm3MZTb rTmYG9t5rCB+x70UESZmytkebORJLNrOGkTMFHs= X-Google-Smtp-Source: ACJfBosl+/fxQaSrET/IvqqviZGk6rG7PNVPmgVN38TaEMKtIcKZUsQx70ZB+0EDWLOV4+ExxxOWV07Q0NgxbThrUgk= X-Received: by 10.233.221.6 with SMTP id r6mr2415665qkf.305.1515074367129; Thu, 04 Jan 2018 05:59:27 -0800 (PST) MIME-Version: 1.0 Received: by 10.12.193.93 with HTTP; Thu, 4 Jan 2018 05:59:26 -0800 (PST) In-Reply-To: <2D7460E1-C724-4DAE-86CA-2D48AB2DAFE5@gmail.com> References: <2D7460E1-C724-4DAE-86CA-2D48AB2DAFE5@gmail.com> From: Dave Taht Date: Thu, 4 Jan 2018 05:59:26 -0800 Message-ID: To: Jonathan Morton Cc: cerowrt-devel@lists.bufferbloat.net Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Cerowrt-devel] KASLR: Do we have to worry about other arches than x86? X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Jan 2018 13:59:27 -0000 Alan cox has been doing a good job of finding the good stuff. Power and the IBM z-series are also affected. https://plus.google.com/u/0/+AlanCoxLinux On Thu, Jan 4, 2018 at 5:48 AM, Jonathan Morton wro= te: > > >> On 4 Jan, 2018, at 3:38 pm, Dave Taht wrote: >> >> I lay awake last night trying to figure out what the impact of these >> bugs would be on the market. What I think will happen is everybody's >> stock is going to go up as there is a mad rush to replace now 10-30% >> slower hardware just to meet existing loads. > > I think *AMD's* stock is going to go up a lot more than Intel's, because = they have pretty good server/workstation hardware now, and no vulnerability= to the most serious variants of this attack (which means no performance im= pact from mitigation). Apparently there are also mitigations for Spectre v= 1 and v2 which have minimal performance impact; Meltdown is the one which h= as a big performance cost to deal with. > > Probably some ARM and PowerPC server vendors could get a boost too, but o= nly after their exposure to these attacks has been properly assessed. > > - Jonathan Morton > --=20 Dave T=C3=A4ht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619