Messages in this thread |  | | Date | Sun, 24 Jul 2022 11:25:04 +0200 (CEST) | | From | Jan Engelhardt <> | | Subject | Re: RETBleed: WARNING: Spectre v2 mitigation leaves CPU vulnerable to RETBleed attacks, data leaks possible! |
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On Saturday 2022-07-23 23:50, Adam Borowski wrote: >> > We are booting the i386 kernel on an x86 machine. > >[..] And for quite some tasks, halved word >size (thus ~2/3 memory usage) can overcome register starvation and win >benchmarks.
So how many benchmarks does a 32-bit userspace with a 32-bit kernel win over 32-bit userspace with a 64-bit kernel?
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