Date: Thu, 1 Feb 2018 20:14:42 -0700 From: "@lbutlr" <kremels@kreme.com> To: Freebsd Questions <freebsd-questions@freebsd.org> Subject: Re: Response to Meltdown and Spectre Message-ID: <F395799E-2C94-47E9-AA1C-5CB075C50076@kreme.com> In-Reply-To: <CA%2BtpaK2o1nbY2W2JVRtogN=P2VM9rag_dodK=GtLWgKwNsYZkg@mail.gmail.com> References: <CY1PR01MB12472D916F78A638731ECCE68FFB0@CY1PR01MB1247.prod.exchangelabs.com> <23154.11945.856955.523027@jerusalem.litteratus.org> <5A726B60.7040606@gmail.com> <92120E50-19A7-4A44-90DF-505243D77259@kreme.com> <CA%2BtpaK2o1nbY2W2JVRtogN=P2VM9rag_dodK=GtLWgKwNsYZkg@mail.gmail.com>
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On 1 Feb 2018, at 16:04, Adam Vande More amvandemore@gmail.com> wrote: >=20 > On Thu, Feb 1, 2018 at 3:48 PM, @lbutlr <kremels@kreme.com> wrote: >=20 >> the trouble is that AMD's behavior has been at least as bad as = Intel's, if >> not worse, in regards to Meltdown, >>=20 >=20 > Can you explain what provoked this assertion? First, they violated (not technically, but they made it bloody obvious) = the NDA so that the flaw was widely discovered a week early by adding a = comment to a meltdown patch that lead every expert int he field straight = to the vulnerability: "The AMD microarchitecture does not allow memory = references, including speculative references, that access higher = privileged data when running in a lesser privileged mode when that = access would result in a page fault." Second, they initially claimed they were would not release any firmware = because they were entirely immune, which was untrue. They were almost immediately proved to be vulnerable to some of the = flaws. Third, while Intel released (and continues to release) detailed = technical information, AMD released PR statements. Honestly, as bad as Intel has looked in the last month, AMD looks worse = since they'd behaved like children. --=20 Don't be afraid to be weak, Don't be too proud to be strong.
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