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I think he means Linux kernel developers hate (their own) solution for Meltdown.
by sewer_bird 9y ago
I think he means Linux kernel developers hate (their own) solution for Meltdown.
- caf 9y agoThe essential element of the solution for Meltdown is the same in every x86-64 OS: unmapping the kernel when in usermode. This is widely hated because it makes kernel entries and exits much slower, and blows away the TLB if your hardware doesn't have PCID support.
- nl 9y agoYes, this. It sucks, but what else can one do?