Date: Sun, 4 Feb 2018 04:15:23 -0700 From: "@lbutlr" <kremels@kreme.com> To: Freebsd Questions <freebsd-questions@freebsd.org> Subject: Re: Response to Meltdown and Spectre Message-ID: <DDBDE0D2-C012-4E1D-A877-A62A945ABFCB@kreme.com> In-Reply-To: <044e62f7-69ca-71fe-34a8-5c5cafc06f08@yahoo.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> <F395799E-2C94-47E9-AA1C-5CB075C50076@kreme.com> <044e62f7-69ca-71fe-34a8-5c5cafc06f08@yahoo.com>
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On 2018-02-02 (04:18 MST), Paul Pathiakis via freebsd-questions = <freebsd-questions@freebsd.org> wrote: >=20 > On 02/01/2018 22:14, @lbutlr wrote: >> On 1 Feb 2018, at 16:04, Adam Vande More amvandemore@gmail.com> = wrote: >>> 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 >>> 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." >>=20 >> Second, they initially claimed they were would not release any = firmware because they were entirely immune, which was untrue. >>=20 >> They were almost immediately proved to be vulnerable to some of the = flaws. >>=20 >> Third, while Intel released (and continues to release) detailed = technical information, AMD released PR statements. >>=20 >> Honestly, as bad as Intel has looked in the last month, AMD looks = worse since they'd behaved like children. >>=20 > This is the exact opposite of what I have seen/read. What NDA is = this? Really? > "A week early"? Again, this was found out about in June of last year = to affect intel architecture. A flaw that existed for over 10, if not = 20 years. They did not release the information, Google researchers and = other independents did.... I included the comment that AMD made in code to mitigate Meltdown that = was so obvious that it led multiple teams of people to figure out what = the problem was before the planned release of mitigation. AMD claimed they were immune or nearly immune to Meltdown AND Spectre. = This is not true, they are vulnerable to Spectre and eventually admitted = it. --=20 "Last night - you were unhinged. You were like some desperate, howling demon. You frightened me. - Do it again!"
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