[Info-vax] Intel junk...Kernel-memory-leaking Intel processor design flaw forces Linux, Windows redesign

[Kerry Main]

> -----Original Message-----
> From: Info-vax [mailto:info-vax-bounces at rbnsn.com] On Behalf Of JF
> Mezei via Info-vax
> Sent: January 5, 2018 10:59 PM
> To: info-vax at rbnsn.com
> Cc: JF Mezei <jfmezei.spamnot at vaxination.ca>
> Subject: Re: [Info-vax] Intel junk...Kernel-memory-leaking Intel
> processor design flaw forces Linux, Windows redesign
> 
> On 2018-01-05 17:41, DaveFroble wrote:
> 
> > Now, as for Alpha, yes, OoO and such, but, the question would be,
> does it allow
> > "illegal" access to memory?  If Alpha does not allow loading memory it
> should
> > not into cache, then perhaps not a problem.
> 
> 
> Meltdown also relies on the ability of an unprivileged process to flush
> the CPU cache and then read it (to see whatever the first process has
> read from illegal memory)..
> 
> 
> Not sure why x86 allows unprivileged process to manage the CPU cache.
> If
> Alpha does not allow this, then there would be no means for the first
> process to use the "covert channel" to send each byte to a cooperative
> process.
> 

JF - welcome back ..

😊


Regards,

Kerry Main
Kerry dot main at starkgaming dot com