Re: [OFFTOPIC] Re: "Meltdown" and "Spectre": Every modern processor has unfixable security flaws

On Sun, Jan 07, 2018 at 08:32:17PM -0500, SDA wrote: > Show who you're quoting with an attribution line, please! With proper attribution, we might know who you are addressing with this statement... Cheers, Tom -- What's the matter with the world? Why, there ain't but one thing wrong with

Re: [OFFTOPIC] Re: "Meltdown" and "Spectre": Every modern processor has unfixable security flaws

On 2018-01-08, SDA wrote: > Show who you're quoting with an attribution line, please! > Tit for tat, unintended irony, blatant hypocrisy, or something else (I'm leaning toward the foremost, but you never know)? Apropos, as revealed in another thread, I'm dying to

Re: [OFFTOPIC] Re: "Meltdown" and "Spectre": Every modern processor has unfixable security flaws

Show who you're quoting with an attribution line, please!

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On Fri, Jan 5, 2018 at 12:42 PM, Marc Auslander wrote: > Nicholas Geovanis writes: > >>On Fri, Jan 5, 2018 at 6:55 AM, wrote: >>> (mainframes of that time had at least VM, possibly >>> speculative prefetch). >> >>Is it correct to

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

Nicholas Geovanis writes: >On Fri, Jan 5, 2018 at 6:55 AM, wrote: >> (mainframes of that time had at least VM, possibly >> speculative prefetch). > >Is it correct to call branch prediction the same as speculative execution? >If so, then "yes" they had

[OFFTOPIC] Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

> Is it correct to call branch prediction the same as speculative execution? Not really: they're closely related yet different. Stefan

[OFFTOPIC] Re: "Meltdown" and "Spectre": Every modern processor has unfixable security flaws

>> With TLB cache and all that? Pretty impressive :) > I am not sure about the 68010 and its separate MMU. But beginning with 68020 > there surely was memory space separation per process and cache memory in the > CPU. The 68020 didn't have an MMU on chip (it required a separate chip (MC68851) if

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, Jan 05, 2018 at 10:33:45AM -0600, Nicholas Geovanis wrote: > On Fri, Jan 5, 2018 at 6:55 AM, wrote: > > (mainframes of that time had at least VM, possibly > > speculative prefetch). > > Is it correct to call branch

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On Fri, Jan 5, 2018 at 6:55 AM, wrote: > (mainframes of that time had at least VM, possibly > speculative prefetch). Is it correct to call branch prediction the same as speculative execution? If so, then "yes" they had it, but I don't honestly know if that's correct. Pipeline

Re: "Meltdown" and "Spectre": Every modern processor has unfixable security flaws

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, Jan 05, 2018 at 04:39:41PM +0100, Thomas Schmitt wrote: > Hi, > > to...@tuxteam.de wrote: (thanks for this walk down the memory (pun? me?) lane. [...] > > > Man against hardware. Who will finally win ? > > > Hardware. > > The more we

Re: "Meltdown" and "Spectre": Every modern processor has unfixable security flaws

Hi, to...@tuxteam.de wrote: > > > Does any of the processors in the M68K family support VM? I wrote: > > http://gunkies.org/wiki/MC68010 > With TLB cache and all that? Pretty impressive :) I am not sure about the 68010 and its separate MMU. But beginning with 68020 there surely was memory

Re: "Meltdown" and "Spectre": Every modern processor has unfixable security flaws

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, Jan 05, 2018 at 02:41:57PM +0100, Thomas Schmitt wrote: > Hi, > > to...@tuxteam.de wrote: > > Does any of the processors in the M68K family support VM? > > They did since the early 1980s when i wondered what the advantage of an > 68010 would

Re: "Meltdown" and "Spectre": Every modern processor has unfixable security flaws

Hi, to...@tuxteam.de wrote: > Does any of the processors in the M68K family support VM? They did since the early 1980s when i wondered what the advantage of an 68010 would be over an 68000 (with HP BASIC: none). http://gunkies.org/wiki/MC68010 After all, early Sun, HP and Apollo Unix

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Fri, Jan 05, 2018 at 07:39:23AM -0500, Jack Dangler wrote: [...] > Did this also affect Motorola chipsets? I know they haven't been > popular in a while, but I believe they are still in use (i.e. 68000) You can answer this question yourself: -

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On 01/04/2018 12:55 PM, The Wanderer wrote: On 2018-01-04 at 12:30, Michael Fothergill wrote: On 4 January 2018 at 17:22, Curt wrote: https://arstechnica.com/gadgets/2018/01/meltdown-and-spectre-every-modern- processor-has-unfixable-security-fladdws/U TL;DR Windows,

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

I was hoping to be retired before this happened.. All of AWS EC2 is rebooting today by 4pm UTC AppArmor everywhere: Can't trust the hardware to do it right. Clowns! Buffo! On Thu, Jan 4, 2018 at 12:19 PM, Michael Fothergill wrote: > > > On 4 January 2018 at

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On 4 January 2018 at 17:55, The Wanderer wrote: > On 2018-01-04 at 12:30, Michael Fothergill wrote: > > > On 4 January 2018 at 17:22, Curt wrote: > > > >> https://arstechnica.com/gadgets/2018/01/meltdown-and- > spectre-every-modern- > >>

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On 2018-01-04 at 13:17, Tixy wrote: > On Thu, 2018-01-04 at 12:55 -0500, The Wanderer wrote: > >> Meltdown so far is not known to affect anything other than Intel. > > And ARM's Cortex-A75 [1] which according to The Register [2] > "Qualcomm's upcoming Snapdragon 845 is an example part that uses

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On Thu, 2018-01-04 at 12:55 -0500, The Wanderer wrote: > Meltdown so far is not known to affect anything other than Intel. And ARM's Cortex-A75 [1] which according to The Register [2] "Qualcomm's upcoming Snapdragon 845 is an example part that uses the A75" [1]

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On 2018-01-04 at 13:06, francis picabia wrote: > On Thu, Jan 4, 2018 at 1:22 PM, Curt wrote: > >> https://arstechnica.com/gadgets/2018/01/meltdown-and-spectre-every-modern- >> processor-has-unfixable-security-fladdws/U >> >> >> TL;DR >> >> Windows, Linux, and macOS have all

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On Thu, Jan 4, 2018 at 1:22 PM, Curt wrote: > https://arstechnica.com/gadgets/2018/01/meltdown-and-spectre-every-modern- > processor-has-unfixable-security-fladdws/U > > > TL;DR > > Windows, Linux, and macOS have all received security patches that > significantly alter how the

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On 2018-01-04 at 12:30, Michael Fothergill wrote: > On 4 January 2018 at 17:22, Curt wrote: > >> https://arstechnica.com/gadgets/2018/01/meltdown-and-spectre-every-modern- >> processor-has-unfixable-security-fladdws/U >> >> >> TL;DR >> >> Windows, Linux, and macOS have all

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On 4 January 2018 at 17:22, Curt wrote: > https://arstechnica.com/gadgets/2018/01/meltdown-and-spectre-every-modern- > processor-has-unfixable-security-fladdws/U > > > TL;DR > > Windows, Linux, and macOS have all received security patches that > significantly alter how the

Re: “Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

On 2018-01-04 at 12:22, Curt wrote: > https://arstechnica.com/gadgets/2018/01/meltdown-and-spectre-every-modern-processor-has-unfixable-security-fladdws/U > > > TL;DR > > Windows, Linux, and macOS have all received security patches that > significantly alter how the operating systems handle

“Meltdown” and “Spectre”: Every modern processor has unfixable security flaws

https://arstechnica.com/gadgets/2018/01/meltdown-and-spectre-every-modern-processor-has-unfixable-security-fladdws/U TL;DR Windows, Linux, and macOS have all received security patches that significantly alter how the operating systems handle virtual memory in order to protect against a