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by numpad0 275 days ago
Didn't they have issues with `LOCK CMPXCHG`(not the 8B)? This is out of my depth and I am not sure, but it sounds similar to the f00f bug.

1: https://en.wikipedia.org/wiki/Intel_Quark#Segfault_bug
1 comments
neerajsi 275 days ago
Yes, they did have the bug with the lock prefix. IOT people at Microsoft got NT booting on the Quark and we ran into that problem. I wound up writing a small tool to patch out all the lock prefixes.
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