Hello, I disabled the ldtsc and ldtscp instructions for usermode on one of my production servers: % ./spectre Reading 40 bytes: Bus error (core dumped) All PoC code I have seen today relies on those instructions. Is there any other way to measure the memory/cache access times ? On 10.4-RELEASE I had to rebuild world and some ports, but now everything seems to be working fine. Patches attached. Regards, Klaus
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