Tony Chen from Microsoft gave a talk called "Guarding Against Physical Attacks: The Xbox One Story" and he explains that they want any sort of physical attack to cost at least the price of 10 games ($600 at the time).
This attack is on the early models that didn't have those protections enabled. The researcher surmised that later models do indeed have anti-glitching mechanisms enabled.
FYI, it's been almost two years since us-east-1-chi-2 launched and it's still missing on the site. Any reason for this? Kind of feels like local zones are a 2nd class citizen even at AWS itself.
Thank you for maintaining this, I do use it every few months at $DAYJOB and it's quite useful for my capacity/deployment planning.
Yes that revision is patched to specifically counter RGH. Microsoft disabled the ability to get the precise timing needed from the CPU and also added more filtering/robustness so the system will reset properly instead of getting into the inconsistent state of the old revisions.
52% of Swedish households are 1 person households[1] so they were sort of self-isolating by default. As you can see from the other replies, that wasn't enough to keep transmission at bay.
I picked the ASRock X570 Taichi since I needed 3 PCIe slots and it was on sale for ~$260. Very happy with it and yeah I'm not overclocking or using any of the quasi-overclock settings either.
I see similar behavior with a 105W 3950X when running prime95. I haven't experienced instability otherwise over the 2 months I've had this build running.
Google's stressapptest runs fine for long durations, building a kernel with make -j32 succeeds (and can boot it), every parallelized archiver like 7z,pbzip2,pigz,xz is ok, and even gaming on a Windows VM using 8c/16t + GPU passthrough works well.
This is my first Ryzen system so I chalked it up to a possible carry over of DDR4 issues from earlier generations. I didn't investigate further since the 3950x had just been released and I couldn't find any other reports of prime95-only instability until now. And just to reiterate, it is perfectly stable otherwise.
Heavy AVX2 workload breaking things fits better so will have to try to collect more data.
Is there an embargo? Is it a silly play on the James Bond reference that Spectre represented? Either way pretty funny since you can't know for sure after this fiasco.
Botched micro code updates, Intel engineers arguing with each other on the linux kernel mailing list, etc. Intel's best and brightest have had 6+ months to work on proper mitigations in secret and this is the result.
The RX480 w/AMDGPU-PRO works pretty well in most cases for desktop/gaming/OpenCL use.
AMD's Linux team is in the middle of a big push to modernize the driver and software stack. It seems they consider it a mostly working preliminary version.
You can choose-your-own-adventure with the totally open amdgpu+mesa stack or use the proprietary AMDGPU-PRO. You can follow development of the open source parts on this mailing list: