"Zenbleed" bug affects all Zen 2-based Ryzen, Threadripper, and EPYC CPUs.
trainsaresexy
link
fedilink
English
31Y

I’m just going to pretend I didn’t buy any AMD surface laptops.

@ScaredDuck@sopuli.xyz
link
fedilink
English
81Y

Is there any information on the performance impact of the microcode fix or is it too early for that?

Dr. Dabbles
link
fedilink
English
21Y

So far the word is the microcode fix causes negligible performance impact, but using the MSR fix causes 5-15% loss. In my own testing on EPYC hardware, microcode made no noticable difference to my workloads and benchmarks. Same as random noise in results.

peopleproblems
link
fedilink
English
41Y

Well

that’s not great

Atemu
link
fedilink
English
311Y

Planned fix

December 2023

Yikes.

@GustavoM@lemmy.world
link
fedilink
English
-11Y

Welp. Thankfully my current AMD desktop PC will be the last one I’ll be using in my whole lifetime – RISC-V 4va. :^)

Why is it that every time there’s drama about hardware, its something I own?

Click bait. Alleady fixed on every platform

Why are users on Linux stating the opposite then?

@ryannathans@lemmy.world
link
fedilink
English
1
edit-2
1Y

Misled by stupid clickbait? I’m on linux, it’s fixed by microcode update in linux-firmware and kernel mitigation, commit says july 24 22:07:56

So it was patched literally 2 days ago.

You think everyone updates their kernel off source that quickly? This vulnerability is absolutely still out in the wild.

“Could take many months to fix” is bullshit

Jane
link
fedilink
English
201Y

How come branch prediction seems so vulnerable to exploits? Both spectre and meltdown were also caused by branch prediction not working quite right.

Makes me glad I’m using an ancient CPU from before the vulnerability.

Create a post

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


  • 1 user online
  • 186 users / day
  • 583 users / week
  • 1.37K users / month
  • 4.49K users / 6 months
  • 1 subscriber
  • 7.41K Posts
  • 84.7K Comments
  • Modlog