问题
Or more specifically, how do I ensure that /proc/cpuinfo and the CPUID opcode do not show that AVX is enabled?
(For context, there is a bug on some Amazon EC2 instances, where AVX is falsely reported as active which causes programs that dynamically use AVX instructions to crash with SIGILL).
I've seen this kernel patch: https://patchwork.kernel.org/patch/1521191/, but I'm not sure if that affects just the kernel's avx usage or also patches up CPUID and /proc/cpuinfo. Regardless, I am hoping to find a solution that works on the linux 2.6.x kernel series.
来源：https://stackoverflow.com/questions/13965178/how-do-i-disable-avx-instructions-on-a-linux-computer