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...unctions. This may be interesting if none of the alternatives have adequate performance, but it makes deployment and adoption dramatically more complex, and potentially infeasible. ## Alternative Mitigation Strategies [Most](https://lwn.net/Articles/743265/) [discussion](https://lwn.net/Articles/744287/) on mitigating variant 1 attacks focuses on mitigating specific known attackable components in the Linux kernel (or other kernels) by manually rewriting the code to contain an instruction sequence that is not vulnerable. For x86 systems this is done by either injecting an `lfence` instruction alon...