Originally posted by L_A_G
View Post
Announcement
Collapse
No announcement yet.
Bisected: The Unfortunate Reason Linux 4.20 Is Running Slower
Collapse
X
-
-
Originally posted by TemplarGR View PostAMD is only *realistically* vulnerable to the milder Spectre v1 variant.
Intel, being the dominant player in the market, is obviously what security researchers aim for and testing to see if the exploits work on AMD and ARM is something they may or may not do after they've found the issue on Intel and got the proof-of-concept working. With the latest set of speculative execution vulnerabilities, published only last week, they didn't even test them on AMD as they simply didn't have the hardware lying around.
Don't get me wrong, Intel definitely has cut more corners than AMD, but having been and to some extent continuing to be the dominant player in the market they're obviously going to be under more scrutiny than anyone else. This additional scrutiny will obviously make the situation look more lopsided than it actually is.Last edited by L_A_G; 19 November 2018, 05:54 AM.
- Likes 1
Leave a comment:
-
Originally posted by ryao View Post1. AMD is vulnerable to Spectre v2.
Originally posted by ryao View Post2. This patch is written in a way that should apply this mitigation to AMD hardware, whether it needs further mitigations or not.
Originally posted by ryao View Post3. Reports contradict #2.
* Note, when I repeat your term "AMD hardware" here, I mean Zen. Older AMD chips have indirect branch predicators more similar to Intels and are just as vulnerable. Only the latest Zen architectures have a newer design, that is effectively immune unless someone sets up specific circumstances, or a new trick is discovered.Last edited by carewolf; 18 November 2018, 07:32 PM.
Leave a comment:
-
Originally posted by juanrga View Post
I guess you missed recent research and my former post:
Leave a comment:
-
Originally posted by juanrga View Post
I guess you missed recent research and my former post:
Leave a comment:
-
Originally posted by juanrga View Post
Leave a comment:
-
Originally posted by ryao View PostThey are invulnerable to a handful of them, such as meltdown.
We also debunk implicit assumptions including that AMD processors are immune to Meltdown-type effects
Leave a comment:
-
Originally posted by Xaero_Vincent View PostSeven more speculative execution vulnerabilities found. An absolute disaster for CPU design. I guess the answer is remove Hyper Threading from mainstream processors and bump up the core count and remove speculative decision making from the architecture and offset the losses with clock speed increases. 7 to 8 GHz would be good? I guess smarter and more efficient processor design means worse security.
Leave a comment:
Leave a comment: