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Intel Sky-/Kaby Lake Hyper-Threading broken on all distros
Hyper Threading of the Skylake and Kaby Lake platform on all distros is broken and can lead to spurious errors, such as application and system misbehavior, data corruption, and data loss.
All versions of these platforms are affected including desktop, embedded, mobile, HEDT and server processors such as Xeon v5 and Xeon v6.
More on the topic and available fixes:
https://paste.debian.net/hidden/828bdbe5/
Comments
Seems like we'll have to spend some hours re-flashing it all. Nice.
It was fun figuring out how to get that microcode update into ESXi (I used the quick method in this vmware blog post).
Holy damn. We have seen issues with CentOS 6 with 2240v4 or v2 cant recall. CPU would suck and we had to reboot nodes. Could this be related?
It doesn't affect E5, E3 and the family including i3,i5,i7
The post says it only affects Skylake/Kabylake, v4 is Broadwell and v2 is Ivy Bridge.
2 words: have fun.
I moved this to General because I think it's not really offtopic and non-logged-in users won't see it otherwise.
Too bad that some people wont get enough sleep now.
Tried to ask OVH about their stance/updates on this bug. So far all I got was a bunch of baloney and this very questionable sentence:
>
Apparently they rent out servers with completely unsupported cpu platforms.